armstrong air conditioner error codes

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armstrong air conditioner error codes
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armstrong air conditioner codes

Armstrong Air is the professional's choice in home heating & cooling. Including oil & gas furnaces, air conditioners, heat pumps, package units & air handlers.


CODE: E105.
RESULT: Device communication problem - No other devices on RS BUS (Communicating systems only).
FIX: Equipment is unable to communicate indicates numerous message errors. In most cases errors are related to electrical noise. Make sure high voltage power is separated from RSBus. Check for mis-wired and/or loose connections between the stat, indoor unit and outdoor unit. Check for a high voltage source of noise close to the system. Fault clears after communication is restored.

CODE: E110.
RESULT: Low line voltage.
FIX: Line Voltage low (Voltage tower than nameplate rating). Check power line voltage and correct. Alarm clears 5 seconds after fault recovered.

CODE: E111.
RESULT: Line voltage polarity reversed.
FIX: Reverse line power voltage wiring. System resumes normal operation 5seconds after fault recovered.

CODE: E112.
RESULT: Ground not detected.
FIX: System shuts down. Provide proper earth ground. System resumes normal operation 5 seconds after fault recovered.

CODE: E113.
RESULT: High line voltage.
FIX: Line Voltage high (Voltage higher than nameplate rating). Provide power voltage within proper range. System resumes normal operation 5seconds after fault recovered.

CODE: E114.
RESULT: Line voltage frequency out of range.
FIX: No 60 Hertz power. Check voltage and line power frequency. Correct voltage and frequency problems. System resumes normal operation 5seconds after fault recovered.

CODE: E115.
RESULT: Low 24V.
FIX: 24 Volt Power high (Range is 18 to 30 Volts). Check and correct voltage. Check for additional power robbing equipment connected to system. May require installation of larger VA transformer to be installed in furnace/air handler. Clears after fault recovered.

CODE: E116.
RESULT: High 24V.
FIX: 24 Volt Power high (Range is 18 to 30 Volts) Check and correct voltage. Check for proper line voltage (120V 240V etc) to equipment. Clears when control senses proper voltage.

CODE: E117.
RESULT: Poor ground detected (Warning only).
FIX: Provide proper grounding for unit. Check for proper earth ground to the system. Warming only will clear 30 seconds after fault recovered.

CODE: E120.
RESULT: Unresponsive device (Communicating systems only).
FIX: Usually caused by delay in outdoor unit responding to indoor unit poling. Recycle power. Check all wiring connections. Cleared after unresponsive device responds to any inquiry.

CODE: E124.
RESULT: Active communicating thermostat signal missing for more than 3 minutes (Communicating systems only).
FIX: Equipment lost communication with the thermostat. Check four wiring connections, ohm wires, and cycle power at the thermostat. Alert stops all services and waits for heart beat message from thermostat (subnet controller). Cleared after valid thermostat (subnet) message is received.

CODE: E125.
RESULT: Control failed self check, internal error, failed hardware. Will restart if error recovers, Integrated control not communicating Covers hardware errors (flame sense circuit faults, pin shorts, etc).
FIX: Hardware problem on the control. Cycle power on control. Replace if problem prevents service and is persistent. Cleared 300 seconds after fault recovered.

CODE: E126.
RESULT: Control internal communication problem.
FIX: Hardware problem on the control. Cycle power on control. Replace if problem prevents service and is persistent. Cleared 300 seconds after fault recovered.

CODE: E131.
RESULT: Corrupted control parameters (Verify configuration of system) (Communicating systems only).
FIX: Reconfigure the system. Replace control if heating or cooling is not available. Only applicable in the communicating mode not in startup. Exit from Commissioning and Execute Se+ factory Default mode. Control will still operate on default parameter settings.

CODE: E180.
RESULT: Outdoor air temperature sensor failure. Only shown if shorted or out of range (Communicating systems only).
FIX: Compare outdoor sensor resistance to temperature resistance chartsin unit installation instructions. Replace sensor pack if necessary. At beginning of (any) configuration, furnace or air handler control will sense outdoor air and discharge air temperature sensor(s) If detected (reading in range), appropriate feature will be set as installed and that could be seen in 'About' screen. In normal operation after control recognizes sensors, alarm will be sent if valid temperature reading is lost. To get rid of setting and alarm, redo configuration and make sure that temperature sensor is marked as not installed in indoor Unit 'About' screen. When indoor unit control is replaced thermostat will 'tell' new control if temperature sensor is in system or not. Clears 30 seconds after fault recovered.

CODE: E200.
RESULT: Hard Lock out - Rollout circuit open or previously open.
FIX: Correct cause of rollout trip or replace flame rollout switch. Test furnace operation. Cleared after fault recovered.

CODE: E201.
RESULT: Indoor blower/communication failure. Unable to communicate with blower motor.
FIX: Indoor blower communication failure including power outage. Lost communication with indoor blower motor. Possible causes: motor not powered, loose wiring. Problem may be on control or motor side. Cleared after fault recovered.

CODE: E202.
RESULT: Indoor blower motor mismatch - indoor motor horsepower does not match unit capacity.
FIX: Incorrect appliance capacity code selected. Check for proper configuring under Unit Size Code for Furnace/Air Hander on configuration guide or in installation instructions. Cleared after the correct match is detected following a reset. (Remove thermostat from system while applying power and reprogramming).

CODE: E203.
RESULT: Appliance capacity size is NOT programmed. Invalid unit codes. Refer to configuration flow chart.
FIX: No appliance capacity code selected. Check for proper configuring under Unit Size Codes for Furnace on configuration guide or in installation instruction. Critical Alert Cleared after valid unit code is read following a reset (remove thermostat from system while applying power and reprogramming).

CODE: E204.
RESULT: Gas valve mis-wired.
FIX: Check gas valve operation and wiring. Clears when repaired control.

CODE: E205.
RESULT: Gas valve control relay contact shorted.
FIX: Check wiring on control and gas valve. If wiring is correct replace control.

CODE: E206.
RESULT: Gas valve second stage relay failure.
FIX: Furnace will operate on 1st stage for remainder of the heating demand. Will clear after fault recovered. If unable to operate 2nd stage replace control.

CODE: E207.
RESULT: Hot surface igniter sensed open - Refer to troubleshooting.
FIX: Measure resistance of hot surface igniter. Replace if open or not within specified range found in 10M. Resumes normal operation after fault is cleared.

CODE: E223.
RESULT: Low pressure switch failed open.
FIX: Check pressure (inches W.C) of low pressure switch closing on heat call. Measure operating pressure (inches w.c.). Inspect vent and combustion air inducer for correct operation and restriction. Resumes normal operation after fault is cleared.

CODE: E224.
RESULT: Low pressure switch failed closed. Refer to troubleshooting.
FIX: Check pressure (inches W.C) of low pressure switch closing on heat call. Measure operating pressure (inches w.c.). Inspect vent and combustion air inducer for correct operation and restriction. Resumes normal operation after fault is cleared.

CODE: E225.
RESULT: High pressure switch failed open. Refer to troubleshooting.
FIX: Check pressure(inches W.C) of high pressure switch closing on heatcall. Measure operating pressure (inches w.c. Inspect vent and combustion air inducer for correct operation and restriction Resumes normal operation after fault is cleared.

CODE: E226.
RESULT: High pressure switch failed closed. Refer to troubleshooting.
FIX: Check operation of high pressure closing on heat call. Measure operating pressure (inches w.c.). Inspect vent and combustion air inducer for correct operation and restriction. Resumes normal operation after fault is cleared.

armstrong air conditioner error codes

armstrong air conditioner codes


See What Our Customers Are Saying:

by Cibele Ceroni on Twintech Heating and Cooling

Great Team! Furnace broke in the weekend, Bob visited same day and Greg installed new one on Monday. Team was professional, respectful and knowledgeable. Installation went very well, Greg found solutions to challenges, like hiding new conduits in the ceiling. Looks nice and new furnace is working great. Five Stars.

by Jackie Graham on Twintech Heating and Cooling

I used Twintech to install a new furnace for my home. Bob was terrific in explaining the sizing options and why the 2 stage furnace was the best option for me. Greg did a great job installing, clean and on time. Finished work looks great but the best part is how it works. The 2 stage heating is so much more comfortable. I run the fan continuously to keep the indoor air clean. Great investment! Would highly recommendTwintech!

by Anthony Silva on Twintech Heating and Cooling

I’m going to start this by saying I’m a very particular customer. My background is in mathematics and mechanical engineering so I have an eye for detail and a respect for technical knowledge.
Greg had already done an AC inspection and replaced a water heater tank and there was no question in my mind who to deal with replacing my rickety old furnace after it got pooched.
Bob dropped in ahead of time and clearly (and knowledgeably) outlined all technical, price and operational options.
Greg showed up on time, on the agreed date and did a fantastic job. (The OLD furnace was a house of horrors and was installed in a keystone cops sort of way- careless.)
The work Greg did was HIGHLY PROFESSIONAL and FAR MORE FUNCTIONAL than what I had.
I’m also a musician with many instruments so maintaining predictable humidity/temperature is extremely important to me. Greg recognized this as did Bob. You NEVER feel like you’re being brushed off.
In summary, if you’re looking for PROFESSIONAL, QUALITY results by an EXPERIENCED, THOUGHTFUL team
(that also happen to be FRIENDLY and ATTENTIVE ) then you’ve come to the right page!!

by Karen Morgan on Twintech Heating and Cooling

Once again Twin Tech came through and fixed my furnace. A young man by the name of Mitch came by tonight and he was so nice explained everything he was quick he was clean he turned off the lights even when he left the furnace room it’s just above and beyond Twin Tech always delivers and I just found out about them last year and I will use no one else but thanks again Mitch you are fantastic

by Richard Liu on Twintech Heating and Cooling

I had a problem with the Furnace (Armstrong ultra V) and Greg diagnosed it on the phone. Even told me what the issue was and I was able to fix it. This level of service from a Business that is almost unknown today.

If you require service, reach out to Greg. I will definitely use them in the future!

by Tony Forde on Twintech Heating and Cooling

We have been shopping for a heat pump for our home. We had 3 reps come in and make recommendations and provide a quote. Of the 3, Bob was so clearly so much more qualified, thorough and informed than the other two that the decision was a no brainer. As soon as we get our audit results Twintech will be installing our heat pump.

by Private User, Pickering on Twintech Heating and Cooling

knowledgeable sales person, did not try to up-sell unneeded features,
and was easily contacted to ensure customer satisfaction.
Installation was expertly done by friendly guys, everything explained for use of the products. Old products were removed and returned to rental company as part of the service. Follow up call was received to check all was well. This is my second time using this company as I was fully satisfied with my previous air conditioning unit installation

by Private User, Courtice on Twintech Heating and Cooling

Twintech recently installed a new furnace for me. Bob did a great job assessing what I had and needed. All details well explained including the importance of proper sizing of furnace and the value of multi stage heating and the variable speed blower. As a nurse, indoor air quality is a high priority so the variable speed motor running continuous is so good. 24/7 air cleaning. Greg did a great job on install, attention to detail so appreciated. Already notice such an improved comfort and heat. Thank you Twintech! You come as advertised. I will recommend to anyone in need of heating or cooling!

by Walter, Whitby on Twintech Heating and Cooling

We received various quotes from 4 different companies and right away, the prompt and thorough communication from Bob from TwinTech stood out. He introduced himself, sent sample sites and information, and always confirmed any agreed to dates and times.

Bob was friendly and extremely knowledgeable about the topic of HVAC and it was clear he was passionate about his profession. He approached the job as if he was installing in his own home.

Prior to the new furnace & A/C installation, our old units were loud and inefficient - having several rooms feeling too cold in the winter and too hot in the summer. After installing the recommended units, all rooms stay at a consistent temperature- even the finished basement.

I highly recommend the TwinTech team - just an outstanding job at a reasonable price point.

by Private User on Twintech Heating and Cooling

The experience with Twintech was great from the start. Bob the sales manager was friendly and professional and did not use any pressure tactics. He was very knowledgeable.
The installation was completed by the twin owners in about 6-7 hours. Clean quiet easy going didn't mind when I poked my head in to see progress. Highly recommend

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