Suggested Action:No Action required. An error code H1 means the incoming voltage is too high. While there are some simple steps you can take, you might need to call an HVAC technician for help. The code means the discharged air is sweltering. For home owners, this manual is usually used to troubleshoot any issues and DIY light repair. With cooling issues, you may also hear a loud noise coming from the unit. The HVAC.com team surveyed 100 Charlotte-area homeowners to learn about their heating and cooling ne. Brown out protection keeps the unit from being damaged by any fluctuations in electrical energy. We shall look at how you can self-test or self-diagnose your Amana PTAC and interpret the various fault codes that may pop up. Suggested Action:Enter Configuration Menu and set C3 to C for coolers with electric heat or H for heat pumps. No movement. Aside from making sure the unit is plugged in, you will want to check any power cords for shorts and ensure that connection is not interrupted by breakage or bad wiring. As a solution, you will need to replace it. My amana ptac unit cord blew fire from breaker on cord . However, it's important to note that too low of resistance is bad as it might damage engine components. Do PTAC Air Conditioner Units Work In Tiny Homes? Once you fail to close a window or door near the PTAC, the error code Op/Up may pop up. This ensures that airflow is conditioned entirely through the unit. An overload switch acts as a safeguard for when the compressor gets too hot. Cooling issues may also be a direct result of low refrigerant levels. We provide quality connections between homeowners who need HVAC help and top-rated pros who get the job done. No error code will present. If so were do I order them? SUGGESTED ACTION:Replace black Indoor Ambient Thermistor. Heat Sentinel kicks in when the PTAC is about to overheat to protect it. STATUS:Freeze Protection Engaged. The code On appears in the display when the unit has been configured to work with a wired thermostat (instead of a wireless one). Amana-PTAC Heating and Air Conditioning Solutions This can be the result of a bad thermostat that does not come on at the right time. The LS switch is aso closed. Some taxis charge extra ( . Im getting the code BR, brown out. If your Amana PTAC isnt cooling, check the thermostat. STATUS:High Voltage Protection engaged. Leave off for at least 5 seconds. (Meaning Failed Yellow Indoor Thermostat). Clean the vent screen (the screen on top of the unit) with a soft cloth or vacuum hose. The error codes above dont cover every possible malfunction that your Amana PTAC device may develop. SUGGESTED ACTION:No action required. The Complete Guide to Amana PTAC Error Codes - PTAC Units Blog 23 Common Amana PTAC Troubleshooting Codes Fixed! It's an Amana brand. FIX: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube. Its usually under the control panel. If your device shows any of the error codes below, you may need to call in a refrigerator repair expert. Other faults to consider include: Check that the Amana PTAC unit connects appropriately to a power source. The Trane PTEF1201HAA PTAC needs 208v-230v of power and features Electronic controls with , Thermostat Questions \u0026 Answers Trane communicating system start up #EASYTOLEARNTECH TRANE AIRCONDITING ERROR CODES AND SOLUTIONS // , These codes tell a qualified service professi LG Air Conditioning Multi F(DX) Fault Codes Sheet Macedo - November 2007 - 4 - Fault code 02 Is a problem with the Indoor unit coil inlet , 2017-04-03 adaptive noise cancellation github; overnight parking on block island. Power supply voltage is to high, Suggested Action:Check for incoming power at correct voltage, Status:Brown Out Protection engaged. As Quarteira and the central Algarve are expecting a sell-out 2023, we strongly advise you to get your flights and accommodation as soon as possible, before prices increase and sell out. This means that the compressor and the electric heat are both off. It means that the PTAC red outdoor thermistor is extra hot. Reset the unit but if the error doesnt go, call an expert. Lets find out. All Rights Reserved. If the thermostat portion of your unit isnt working properly, youll need to call an HVAC technician. Suggested Action:No action if a wired thermostat is being used. If the setting reads C3, change this to C. Note that this applies to PTAC units that also have. SUGGESTED ACTION: Clean Filter or Remove Air Blockage. You may have an open internal overload switch. 7 E7 Linesync timing failure. Certain operating states or system modes are designed into your unit for safety, security, or compatibility functions. In such a case, the PTAC cannot cool the space properly. The indoor thermistor (red) is no longer working correctly. Amana packaged terminal air conditioner units are known for their reliability, but as with any product, things can go wrong. F1 is indicative of a double failure. Amana Air Conditioner Error Codes - Appliance Helper HVAC Technician: Tamar D Got it. Once thats the case, the error code Br pops up. If something is blocking the outdoor coils, they may overheat, and once that happens, the error code C5 may pop up. The best fix to this error code is making sure the air filters are clean. Im not sure what to do or check & cant find it online. No matter where you are, keep cool with our portable and window air conditioning units. The best way to fix a "C2" error code is by checking the seal around the unit. Check the operation of the blower motor, the compressor, and all electric heat components. Amana PTAC Troubleshooting Guide (5 Issues Solved!) Clean the condenser coils if dirty and replace a broken fan. There is a source of conducting heat in the room (burner, lamp, etc. Depending on whats wrong with an Amana PTAC unit, the fastest way to solve the problem is to reset the system. C2 means the device is recirculating the air present inside the room. Heating & AC. I have a Amana PTAC units displaying Ec. How do I reset this If you have a maintenance issue with your model, PTAC Units can help with, and repair services. Facebook Twitter Instagram Linkedin Twitter Instagram Linkedin, Gree has many types of air conditioner units like Split Air Conditioner, Window Air conditioners, Tower Air Conditioners, Cassette Air conditioners, Package Air , 2022-04-03 Join Date Sep 2011 Location Las Vegas Posts 33 Post Likes Likes (Given) 0 Likes (Received) 0 Dislikes (Given) 0 Dislikes (Received) 0, Colorful Beet Salad on Arugula With Sherry Vinaigrette, Roasted Green Pepper, Onion and Red Potatoe Salad, Greek Tuna Salad Pita Sandwiches With Feta Cheese. Our product reviews and recommendations are researched and backed by real buyers and industry experts, not dictated by our partners. Freeze protection mode is activated when the thermostat or thermistor detects temperatures below 40 . This allows the unit to check for errors and produce a code that describes its current operating state. Suggested Action:Clean Filter or Remove Air Blockage or Close Vent Door or Improve indoor to outdoor seal. air conditioner/heat pump. As with any piece of HVAC technology, Packaged Terminal Air Conditioners (PTACs) will likely encounter maintenance issues. Wall Air Conditioners Ultimate Buyers Guide, How To Choose The Right Hotel Air Conditioner. atwood helium refrigerator troubleshooting. Large delta between thermostat and return. Remove any object blocking the flow of air into your Amana PTAC device. Unit will not condition space with door or window open, Suggested Action:No action required. While holding both buttons, turn the master switch to the on position. Address: 473 Mundet Place; City: Hillside; State: New Jersey; Zip code: 07205; Country: United States, Copyright 2023 Machine Answered | All Rights Reserved, 5 Reasons Your Frigidaire Microwave Buttons Not Working (Fixed! After this, make sure the capillary tube is not restricted in any way. . To make sure, spot a red dot flashing in the corner of the screen. Using the error code as a pointer, you can determine if a manual reset will get your PTAC unit working smoothly. Power supply voltage is to high. STATUS:Outdoor Coil temperature too high for outdoor ambient temperature. See a quick Amana PTAC troubleshooting guide for the most typical error codes below. This manual is to be used by qualified, professionally trained HVAC technicians only. Learn more about PTAC Cooling and Heating! This error code means the batteries in the PTACs remote are low. WOULD THINK THERE WOULD BE A RESET BUTTON. 2019 Copyright - All Done AC Maintenance Co. LLC, Amana Through the Wall (TTW) AC Error Codes and Troubleshooting, Tips for Saving Energy with Your Air Conditioner in Dubai - All Done Ac Maintenance Co. LLC. We have helped countless customers shop for high-quality items -- from air conditioners, to heating units, to water heaters, and more -- and have set up this blog as an extension of our commitment to helping homeowners become informed of the things that matter to them. ), 4 Whirlpool Duet Washer ResetTechniques (Explained! In this guide, well walk you through the list of diagnostic codes that your Amana PTAC may display and provide some possible solutions. If nothing is wrong with the black indoor thermistor but the faulty wireless thermostat, the error code F2 will show up. Compressor is switched off. You can tell when the mode kicks in when the error code HP pops up. A reset help to clear corrupted memory and restore the units factory setting, and that fixes many system problems in the process. Yes No Score 4 Add a comment PDF Packaged Terminal Air Conditioner - Trane. Once you have the code, check it on the above Amana AC troubleshooting guide to see what it means and possibly fix it. However, many malfunctions can be fixed by cleaning filters and coils. Set it to your desired temperature, and ensure the settings are on "cool," and "auto." If the thermostat portion of your unit isn't working properly, you'll need to call an HVAC technician. In this case, it will need to be replaced. In some cases, the unit may run normally with no heat at all, or with heat not blowing often enough. STATUS:Wireless Remote Thermostat failure. Youll have to remove the front cover to access it in most cases. Please help. 50+ Years of PTAC Knowledge
10. If you are ever having trouble with an Amana PTAC a quick reset might be the easiest way to fix the problem. In such a case, the PTAC cannot cool the space properly. Power supply Frequency is too far off 60 Hertz - not a very likely occurrence. It means the outdoor thermistor (red) is getting too hot for the system to work correctly. However, the wireless thermostat is no longer working. Luckily, Amana PTACs are equipped with a diagnostic function that helps to identify possible maintenance issues with a system of codes. Large delta between thermostat and return. Have you tried cycling power? From hvacdirect.com While many issues with PTACs can be fixed by simply cleaning the air filters or the coils, other issues may be more complex and require a service technician. To exit Load Shedding mode, turn on the LS switch. SUGGESTED ACTION: Replace Wireless Thermostat. Turn off the master power switch under the control panel. Simply change the configuration settings to the proper mode to alleviate this error. Check the state of the compressor, blower motor, and other electrical components. Sit back, relax and breathe easy with heating and air conditioning systems from Amana brand. Typically, you can fix them by changing some settings or the location of the PTAC unit. SUGGESTED ACTION:Check for incoming power at correct voltage. Preparing Air Conditioner for hot weather in dubai, Status: Freeze Protection Engaged. The code Eo indicates that the service board on the unit is not configured properly. Note that higher voltages are capable of delivering extreme shock, and you should exercise great caution when checking voltage for your unit. It is an Amana 15000 BTU PTAC Model number is PTH153G50AXXAA. Like F1, the code F3 indicates that the black Indoor Ambient Thermistor on the unit is reading outside of its predetermined range (-20 to 200 ). STATUS:Open Door Lockout (DS1 & DS2 open; wireless). Check your air filter. In this case, you will need to check the voltage coming to the unit and adjust to the proper levels. How do i fix this? F8 E1 or LF or LO FL Error Code in Display - Product Help - Amana Theres power to the power cord but nothing else. C5 C5 means the outdoor coils are too hot. Minimum voltage on 230/208-volt models is 197 volts; maximum is 253 volts. Follow these step-by-step directions to run a diagnostic test on your Amana PTAC unit: If you follow the method above correctly, your air conditioner unit should be in self-diagnostic mode. Next, turn off the power to the PTAC and remove the cover. Press and hold the UP (+) and DOWN (-) arrow buttons. In such a case, the PTAC stops running to stop energy wastage. You will also want to check for any blown fuses. SUGGESTED ACTION:Enter Configuration Menu and set C3 to C for coolers with electric heat or H for heat pumps. This ensures that airflow is conditioned entirely through the unit. To see other quality Amana brand Heating and Air Conditioning products, view our website at www.amana-hac.com or call your local sales representative at 800-647-2982 for complete details. Was this answer helpful? How to Troubleshoot & Reset Your Amana PTAC Unit | Ptac4Less The device will go back to its default configuration settings and should work smoothly. Unit will not condition space with door open. Gl will cause the code, because a fan signal must be present before heater is allowed to energize. STATUS:Control is configured to respond to a wired thermostat. The technician will investigate for underlying issues with your wiring. The error code F6 comes on when the yellow indoor thermistor wont work. The unit should move out of this mode automatically once the temperature of the room or the unit itself returns to safer levels. Status:Open Door Lockout (DS1 & DS2 open; wireless). There are a number of troubleshooting steps you can take to be sure your Amana PTAC unit is back up and running properly. Air Flow Diagnostic Codes for Amana PTAC 9. Where there are normally numbers to indicate temperature, there will either be a set of dashes ( ) or a diagnostic code. Change the units thermostat configuration using your Amana PTAC troubleshooting manual. May be a normal condition if In this case, you will need to replace it. My Amanda Digital in wall unit how do i reset it because we had lost power to the building everything came back on except that. Similarly, the coolant lines might be blocked, kinked, or otherwise need replacing. You may also notice a green light in the bottom left corner of your devices touchpad. S e r v i c e M a n u a l R 4 1 0 A M o d e l s, Packaged terminal air conditioners & heat pumps (36 pages), Packaged terminal air conditioners & heat pumps (28 pages), Ptac - r410a models packaged terminal air conditioners (55 pages), Ptacs ductless split systems vertical ptacs (29 pages), Ptac pd series (electronic controls) packaged terminal air conditioners packaged terminal heat pumps (28 pages), Packaged terminal air conditioners (17 pages), Digital packaged terminal air conditioners (13 pages), Ptac pd series (electronic controls) packaged terminal air conditioners packaged terminal heat pumps (11 pages), Packaged terminal air conditioners packaged terminal heat pumps wallmaster p series (40 pages), Floor console / under ceiling dual type (20 pages), Manual will be automatically added to "My Manuals", Remote Wall Thermostat / Low Voltage Wire Connections, Electronic Control Error Code Diagnostics, Optional Hand Held Remote Control Operation, Refrigeration System Sequence of Operation, Single Phase Running & Locked Rotor Amperage, Wiring Diagrams for Cool with Electric Heat, Wiring Diagrams for Heat Pump with Electric Heat, Air Conditioner Friedrich PTAC Service Manual, Air Conditioner Friedrich 920-087-09 (12/10) Installation And Operation Manual, Air Conditioner Friedrich PTAC Installation & Operation Manual, Air Conditioner Friedrich PTAC Series Installation & Operation Manual, Air Conditioner Friedrich PTAC series Parts Manual, Air Conditioner Friedrich PTAC ZONEAIRE PREMIER Service & Parts Manual, Air Conditioner Friedrich PTAC - R410A Service Manual, Air Conditioner Friedrich MR09C1H Brochure & Specs, Air Conditioner Friedrich PDE07K Service Manual, Air Conditioner Friedrich PDH07K3SF Product Profile, Air Conditioner Friedrich PDE07K Product Profile, Air Conditioner Friedrich PDE07K Series Parts Manual, Air Conditioner Friedrich PTAC Brochure & Specs, Air Conditioner Friedrich PTAC ZONEAIRE SELECT Service & Parts Manual, Air Conditioner Friedrich WallMaster PE07K Service Manual, Air Conditioner Friedrich P/N9359944072-01 Operating Manual, Page 12: Remote Wall Thermostat / Low Voltage Wire Connections, Page 16: Digital Control User Input Configuration, Page 17: Optional Hand Held Remote Control Operation, Page 18: Electronic Control Error Code Diagnostics, Page 21: Refrigeration System Sequence Of Operation, Page 22: Sealed Refrigeration System Repairs, Page 25: Capillary Tube Systems/Check Valve, Page 26: Reversing Valve Description/Operation, Page 30: Single Phase Running & Locked Rotor Amperage, Page 35: Wiring Diagrams For Cool With Electric Heat, Page 36: Wiring Diagrams For Heat Pump With Electric Heat, Page 37: Remote Thermostat Wiring Diagram. Thanks guys. If the unit stops producing heat, is not cooling the space enough, or has issues with incoming or outgoing pressures, there are a few ways you can diagnose and resolve these problems yourself. Preparing Air Conditioner for hot weather in dubai, Status:Freeze Protection Engaged. Contact Us 2023 HVAC.com a Magenta Technologies LLC Company, All Rights Reserved, https://www.hvac.com/resources/what-is-seer-rating/, https://www.hvac.com/air-conditioners/high-efficiency-air-conditioners/, Homeowner survey: HVAC Charlotte, NC repair and cost, https://www.hvac.com/resources/hvac-charlotte-nc-repair-cost/. While holding those buttons, turn the master switch back on. STATUS:Indoor Air Recirculation. Typically, the PTACs display screen has numbers indicating the temperature of the room. 2. Press down on both buttons simultaneously. Unit will not condition space with door open. Follow these simple steps to manually reset your Amana PTAC unit: Do you need to replace an old unit that isnt working? TRANE PTAC ERROR CODE A2 RECIPES. SUGGESTED ACTION:No action if a wired thermostat is being used. All outputs are switched off. When this happens, the device will be unable to cool the space adequately. For example, there may be a problem if the display is blank or the touchscreen isnt responding. Suggested Action:Close Room Door. This setting will disengage when the room temperature rises above 43F. With this error code, the indoor thermistor (black) is working fine. While holding the arrows, press the COOL button twice. If the fan is working properly, you can fix this problem by cleaning the condenser coils. A set of dashes on the display ( ) indicates that no erroractive failure, mode, or lockout can be detected at that time for the unit. 2020-11-24 Symptom Possible Causes; Motor rocks slightly when starting: This is normal start-up for variable speed motor. Generally, heres how to reset an Amana PTAC: Generally, an Amana PTAC produces these types of error codes: Let now discuss the individual error codes under each category, and they are as follows: The error code FP indicates that your PTAC operates under freeze protection, which kicks in when the surrounding temperatures are below 400F. The system will stop working to prevent energy wastage. Once youre sure, check your electrical box for a tripped breaker. I bought a new cord and installed it . Packaged Terminal Air Conditioning & Heating Systems - Amana-PTAC We can group these codes into four categories: System modes point to errors in the operating framework of your Amana PTAC unit. These error codes occur when your Amana air conditioner detects an open window or a door. Push and hold both the heat and cool buttons. The code C5 indicates that the temperature of the outdoor coils is too high for outdoor ambient readings. There are four categories of codes that your system might display for a maintenance issue. The code Fd means that the front desk switch is closed. The code Fb indicates that the battery in the PTAC remote is too low. How can I reset it? If there are kinks, straighten them with a coil fin comb. The other cause, however, could be a broken fan. This category of error codes means a particular component has completely stopped working. While your Amana PTAC unit is able to diagnose many of the possible malfunctions, there are some that will not be indicated by a code. Amana PTAC AC Error Codes - All Done Ac Maintenance There is no one rest button, but it is still a straightforward process. The room temperature measured by the wireless remote thermostat or indoor ambient thermistor active sensor falls below 40F Suggested Action: No Action required. Then, push and hold down the heat and cool buttons simultaneously. For Amana PTACs, there are four airflow-related issues that your unit can detect. The Amana furnace first broke down and stopped cycling Feb 2014. Defective power plug or outlet - A faulty power cable or socket will also prevent the PTAC from receiving any power. In other words, all outputs for the unit are off. As a solution, check the voltage coming into the unit and adjust accordingly. SUGGESTED ACTION: Open front desk switch to allow occupant unit operation. ), orthe room is crowded, I did get an A2 code and when calling Amana they said it was either the heat strip itself or the controller. The manual reset process with clear any settings that you have changed and return everything back to the factory default. SUGGESTED ACTION:No Action required. There may also be a green light (also known as the status light) in the lower-left corner of the touchpad below the OFF button. Locate the down and up arrow buttons on the unit. No action here. Goodman does not assume any responsibility for property damage or personal injury. While holding both buttons, double-tap the Cool button on your PTAC unit. The code F4 means that the red Indoor Coil Thermistor is no longer working or has exceeded its operating tolerance. by | Dec 14, 2020 | What`s New in Christian Music | Dec 14, 2020 | What`s New in Christian Music, jdot breezy real name. st george's school windsor , Turkey Chopped Salad with Spicy Avocado Dressing. Please visit amana-ptac.com or call (877) 254-4729 for all of your PTAC needs. The code Eo indicates that the service board on the unit is not configured properly. The Friedrich PTAC features a 24V AC terminal for connection to an auxiliary fan that may be used to transfer air to adjoining rooms. As mentioned earlier, you can put an Amana PTAC on diagnostic mode to help identify an error code that could point you to a fault. 5. friedrich air conditioner error code a2the journalist by j patrick lewis meaning. While in diagnostic mode, dashes (- -) will replace these numbers. Above are 23 typical Amana PTAC troubleshooting codes to try and fix. Dirty condenser coils could also trigger the error code LC. STATUS: Un-Configured Service Board All operation held awaiting configuration. Purchase Your HVAC Equipment Direct | Goodman AC And Furnace . This also typically means that the compressor is off and the EHH switch is closed. February 18, 2021 // Author: // 0 Comments // Author: // 0 Comments. The room temperature measured by the wireless remote thermostat or indoor ambient thermistor active sensor falls below 40F. From Quarteira to the airport is approximately 30km and 30 minutes away. Amana Diagnostic Codes; Your email address will not be published. Display on PTAC stays at 74 regardless of thermostat setting. Join Date Sep 2011 Location Las Vegas Posts 33 Post Likes Likes (Given) 0 Likes (Received) 0 Dislikes (Given) 0 Dislikes (Received) 0 (Meaning Malfunctioning Red Indoor Thermistor). sunjaibomma Amana AC common error codes CODE = br FAILURES STATUS = Brown Out Protection engaged. It sounds like the main board on the unit might have also gone out. To fix this, you would need to ask the front desk to re-open the switch so that the unit can resume regular operation. STATUS: Emergency Hydronic Engaged. This means that it is either above or below its operating tolerance. The code EH means that the system is in Emergency Hydronic mode. If the red indoor thermostat malfunctions, the error code F4 will pop up. Because of this, you will want to check the condenser fan and the compressor for mechanical issues and repair any shorts in the fan motors. Did the test and the heater doesnt cut on. Youll need to call in an air conditioning repair expert to fix it. Still need help? Indoor Ambient Thermistor (IAT) without a wireless remote thermostat reads outside the range -20F to 200F. E = Air Conditioner with auxiliary heat H= Heat Pump Digit 4 - Development Sequence E = Fifth Development series Digit 5, 6, 7 - .System Alert Guide 529992050 1 CRITICAL ALERTS Critical Alerts indicate the presence of a problem in the system that D1 air conditioner / heat pump is wired as part of a communication system and invalid shared data in integrated control module or network data is invalid for integrated control PCB module. I have a Friedrich Quietmaster (22V) unit, about 10 years old. CODE: C3. 4. To fix this, you will want to start by cleaning the filter and checking for defects in the fans or blowers. A dusty filter may prevent the system from reading the indoor temperature correctly. Save my name, email, and website in this browser for the next time I comment. These can, in turn, affect the operation of the compressor. The code Br usually means that the unit has lost power or the incoming voltage is too low. Code will reset after cleaning, Status:Indoor Air Recirculation. SUGGESTED ACTION: Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube. To fix this, follow the same troubleshooting steps for the Indoor Coil Freeze Warning. Replace both the indoor thermistor and thermostat. SUGGESTED ACTION: Open load shedding switch to allow occupant unit operation. SUGGESTED ACTION:Replace black Indoor Ambient Thermistor or Wireless Remote Thermostat. SUGGESTED ACTION: Check for blower motor, compressor, or electric heat operation. Your email address will not be published. Carefully lift off the front plastic cover by lifting up and pulling toward you. Friedrich PTAC error code: A2 - HVAC-Talk: Heating, Air & Refrigeration Your unit may also display codes for issues related to various airflow systems and temperatures. AMANA PTAC SERVICE INSTRUCTIONS MANUAL Pdf Download C7 signifies the unit is automatically locking the controls for safety reasons. (BTUs), The Exhaustive Guide to Heating and Cooling Your Tiny Home. Refrigeration errors indicate there is a fault with your PTACs refrigeration or cooling system. (Meaning Wrong Service Board Configuration). To put the machine in diagnostic mode, there aretwo2 steps: If done successfully, the display will change and the machine will now be in diagnostic mode. This may cause the unit to stop working completely for energy conservation. Heating issues may be due to a bad thermostat or low voltage. heat. Heating AC | Amana SUGGESTED ACTION:Replace Red Indoor Coil Thermistor . Failure codes indicate that a piece of the unit has stopped working properly or has failed. To fix the problems associated with these codes, you will usually need to replace the defective part or repair it. STATUS: Front Desk switch is closed. Essentially, thats because you can identify different Amana PTAC troubleshooting codes by putting the units in diagnostic mode. Model PTAC unit, PTH093B35AMBP Air Contditioner/Heat Pump with remote thermostat. You can also try closing the vent door and cleaning the filter. The EHH switch is closed. But now im not getting anything to work.no lights come on display panel. While these modes are not necessarily maintenance issues, they can be the cause of your unit not functioning as expected.