If you’re looking for help fixing your Heil furnace, look no further! Our comprehensive Heil furnace repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model’s error codes.
CODE: LED flashing like a heartbeat
PROBLEM: Control has 24 VAC power
CODE: Two LED flashes
PROBLEM: Unit’s pressure switch didn’t open
FIX: Check for an obstruction in the pressure tubing
CODE: Three LED flashes
PROBLEM: Unit’s pressure switch didn’t close or reopened
FIX: Check for: excessive wind; if it’s the proper vent size; defective inducer motor; defective pressure switch; inadequate combustion air supply; disconnected or obstructed pressure tubing; or restricted vent
CODE: Four LED flashes
PROBLEM: Limit circuit fault: either a limit or flame rollout is open
FIX: Check for: restricted vent; loose blower wheel; excessive wind; dirty air filter; or defective blower
CODE: Five LED flashes
PROBLEM: An abnormal flame proving signal, the flame is likely proved while the gas valve is de-energized
FIX: Check for a leaky gas valve or a gas valve that is stuck open
CODE: Six LED flashes
PROBLEM: Failure to ignite or the flame sensor was lost while running
FIX: Check for: an ungrounded flame sensor; defective hot surface ignitor; control ground continuity; inadequate flame carryover; or rough ignition
CODE: Seven LED flashes
PROBLEM: Limit circuit lockout
FIX: A lockout will occur if the limit or flame rollout is open for longer than 3 minutes. Control will auto-reset after 3 hours.
CODE: Eight LED flashes
PROBLEM: Gas heating lockout, control won’t auto-reset
FIX: Check for a miswired gas valve or a defective control valve
CODE: Ten LED flashes
PROBLEM: Polarity is reversed
FIX: Review instructions to correct polarity
CODE: 1 + 2
PROBLEM: Blower is on after power up
FIX: Occurs if the unit is powered up during a call for heat or opens while the blower is on delay
CODE: 6 + 1
PROBLEM: Ignition lockout
FIX: Control will auto-reset after 3 hours
CODE: LED is off
PROBLEM: Secondary voltage fuse is open
FIX: Check whether the door switch isn’t closed or for a short circuit
CODE: LED is on
PROBLEM: Control circuitry lockout
FIX: Will auto-reset after 1 hour
CODE: LED is solid
PROBLEM: Gas valve relay is stuck while open, flame sense circuit failure, or software-check error
FIX: Reset power to clear the lockout and then replace control if status code repeats itself
heil furnace codes
What Our Clients Are Saying About Us
I would like to recommend your company to anyoneOctober 30, 2020
Your company KDM Home & Gas has just installed the CV 50 water heater to my house. The installation process was so smooth. You guys put on the carpet runner in order to avoid any scratch and damage to the carpet and the floor. Your professional guidance has highlighted the B Vent should be installed for the chimney exhaust in order to comply with the building & safety code. You have even performed leak test & dial test in order to make sure the whole installation is in a perfect manner. The registration of the warranty is also very convenient and easy.
I really appreciated that you came to my house to inspect the situation and provide the quotation to me before we decide to get the new water heater. The whole process was so smooth and communicate very well. You return all my text message on the same day basis or even within short time. I would like to recommend your company to anyone.
Work was done neatly. Can barely see the pipe that was installedOctober 30, 2020
Work was done neatly. Can barely see the pipe that was installed. Priced really well.
KDM's cost was amazingly reasonable compared to all other quotesOctober 30, 2020
The tricky plumbing job was completed carefully and thoroughly . Daniel even did extra to make the job proper, within the quote . He patiently explained the work needed before and after completion . In good time, he returned calls and messages, detailed the work, listed every cost honestly, and answered any questions pleasantly . Daniel and his partner were always courteous, and respectful to keep the work clean in my house .
The replaced part is of high quality, thank you ! And his cost were amazingly reasonable compared to all other quotes.
I would recommend this company to anyone who is looking for a professional job at a reasonable priceOctober 30, 2020
KDM did a very professional job paying attention to safety and TSSA codes for this type of work.
At the end of the job they tested all gas fired appliances as they had the main gas off to preform this job, and made sure everything was working proper.
I would recommend this company to anyone who is looking for a professional job at a reasonable price.
I would recommend KDM Home Gas to anyone looking for quality home repair servicesOctober 30, 2020
Daniel was really great to work with. His communication and genuine care for the work being done made all the difference in the world to me especially as we’ve never had good experiences with contractors in the past.
Daniel showed up when he said he would, and took his time to explain to me what caused my humidifier to malfunction. His customer service skills are superior and his quality workmanship made the experience a pleasant one.
I would recommend KDM Home Gas to anyone looking for quality home repair services to their heating or cooling units.
Thank you guys! We couldn’t be happierOctober 30, 2020
Dan and his team were extremely professional, courteous, and clean. They showed up on time, and completed the installation exactly when they said they would finish by. Thank you guys ! We couldn’t be happier.
I highly recommend KDM HomeOctober 30, 2020
Daniel, Shane and Steve did a great job replacing our 3 appliances today. They’re true professionals that pride themselves on making sure everything is done correctly, within budget and on time. They answered all my questions and were more than willing to give helpful advice. I highly recommend KDM Home.
I would recommend KDM Home & Gas to anyone looking for great service at a good price.October 30, 2020
After our old (20+ years) unit gave out, I used HomeStars to obtain quotes for a replacement. Within 30 minutes of posting, I was speaking with Daniel, who was polite and helpful throughout the process. He offered a fair price and a few different products to choose from, and was able to do the installation the same week. I would recommend KDM Home & Gas to anyone looking for great service at a good price.
Great guys Daniel and Shane did an excellent jobOctober 30, 2020
Great guys Daniel and Shane did an excellent job clean efficient and on time also very knowledgeable will have them back to replace furnace.
KDM did our fireplace gas line and heat ventingOctober 30, 2020
We’re finishing our basement and had a gas line out in for a fireplace, as well as a heating vent out in bathroom.