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comfortmaker furnace error codes

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comfortmaker furnace error codes
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comfortmaker furnace codes

If you're looking for help fixing your comfortmaker furnace, look no further! Our comprehensive comfortmaker furnace repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model's error codes.


CODE: Steady LED flashing.
RESULT: Normal operation.
FIX: n/a.

CODE: Two LED flashes.
RESULT: Pressure switch stuck closed.
FIX: Obstruction in pressure tubing.

CODE: Three LED flashes.
RESULT: Pressure switch stuck open or manual ON/OFF switch in off position.
FIX: Proper vent size; defective inducer motor; excessive wind; faulty pressure switch; disconnected or obstructed pressure tubing; inadequate combustion air supply; or restricted vent.

CODE: Four LED flashes.
RESULT: The limit switch is open.
FIX: Loose blower wheel; restricted vent; dirty air filter; defective blower; or excessive wind.

CODE: Five LED flashes.
RESULT: Flame has been sensed out of sequence.
FIX: The gas valve is either leaking or stuck open.

CODE: Six +1 LED flashes.
RESULT: Soft lockout: maximum trials for ignition has been reached.
FIX: Call For Service.

CODE: Six +2 LED flashes.
RESULT: Soft lockout: flame sense was lost while running, a cycling pressure switch, or blocked condensate.
FIX: Call For Service.

CODE: Six +3 LED flashes.
RESULT: Soft lockout: the pressure switch was opened during run
FIX: Call For Service.

CODE: Six +4 LED flashes.
RESULT: Soft lockout: the limit switch was opened during run.
FIX: Call For Service.

CODE: Seven LED flashes.
RESULT: Soft lockout: the main limit was open for too long (1-hour delay).
FIX: Call For Service.

comfortmaker furnace error codes

comfortmaker furnace codes


See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

by Trevor Owens on Twintech Heating and Cooling

I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. IÂ’ve used the company in the past for my furnace so I was happy when I recognized Greg at my front door. HeÂ’s great and the service is always top notch. IÂ’d highly recommend using twintech for honest, superior service in the Durham region. Thanks!

by Nicole Alain on Twintech Heating and Cooling

I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!

by Courtney Parkes on Twintech Heating and Cooling

Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!

by Jacqueline Graham on Twintech Heating and Cooling

Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!

by Bill Grainger on Twintech Heating and Cooling

Just had a new furnace installed by Twintech. I canÂ’t express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!

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comfortmaker furnace error codes

See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

What Do AC Error Codes Mean?

  • SUBMITTED BY:
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  • - June 2, 2024

Air conditioning (AC) units can display error codes when something goes wrong. These codes are specific to the manufacturer and model of the AC unit, but here are some general explanations for common AC error codes: General AC Error Codes

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If you’ve discovered water pooling around your furnace in Ajax, it’s a clear sign something isn’t right. Furnace leaks can cause water damage, reduce heating efficiency, and disrupt your home’s comfort. At Twintech Heating and

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  • - May 28, 2023

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  • - August 15, 2023

Today I tried to replace my existing thermostat with a Nest Learning Thermostat. My old thermostat is a Bryant thermostat and Bryant HVAC unit. The thermostat has Y G C W and Rh with a jumper to Rc. Connected the Nest as suggested and got th

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