Heil Furnace Error Codes
Heil Furnace Error Codes

Heil Furnace Error Codes

If you're looking for help fixing your Heil Furnace, look no further! Our comprehensive Heil Furnace error code guide will explain common issues, provide 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



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Heil Furnace Error Codes

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Product Reviews:

I purchased this furnace around six years ago. It is efficient, simple, wor
I purchased this furnace around six years ago. It is efficient, simple, works well but it is a bit expensive as compared to other brands. However, I cannot complain much about the price because compared to the performance of the unit, the price is reasonable and I see now that I got value for my money. The furnace runs quietly with little or no noise at all and I have not done any repairs or replacements. I can say that I am happy with this unit. The only thing I would like to stress to other users is that they should have a qualified Technician install their furnace or else they will have problems. I would buy this brand again if I ever need one.
Published: November 22, 2020
pickhvac.com Vestal, NY
Source: pickhvac.com

I have owned a Heil furnace for about twelve years. I purchased new togethe
I have owned a Heil furnace for about twelve years. I purchased new together with my house when I moved in. So far it’s operating efficiently, and it’s very reliable. The only thing I have done on my furnace has changed the filters and no other major repairs. I also did a replacement of the converter at the AC unit compressor outside that is not necessarily part of my furnace. I had a technician inspect my furnace recently, and he confirmed that it is still running like a new one. It is as well very efficient, and my heating bill has dropped drastically I would recommend this brand to anyone to purchase one.
Published: October 22, 2020
pickhvac.com Boston, MA
Source: pickhvac.com

After numerous research for the best gas furnace regarding price and perfor
After numerous research for the best gas furnace regarding price and performance finally settled for this model. I met a contractor who took me through all the specifications of this model and then installed the unit for me. My experience with Heil has been great, and I would buy this brand again and again. I have had my f for five years now, and no single repair plus the unit runs without the noise, you can barely hear it or notice whether it’s functioning or not. You know what he was right; I haven’t had a problem with mine for years.
Published: September 22, 2020
pickhvac.com Texas
Source: pickhvac.com

The low price is what attracted me into buying this model which I have owne
The low price is what attracted me into buying this model which I have owned for about four and a half years now. The stainless steel secondary heat exchanger is of high quality. With this unit, I saved money on this equipment and still got high efficiency not forgetting the double stage valve and motor giving reliable performance. The unit is economical in the long run, and I would buy this brand again.
Published: August 22, 2020
pickhvac.com Minnesota
Source: pickhvac.com

Heil's major strength is that it delivers on pricing and affordability
Heil's major strength is that it delivers on pricing and affordability. They also have a wide range of energy-efficient furnaces that are ideal for both residential and small commercial use.
Published: November 22, 2019
furnaceprices.ca
Source: furnaceprices.ca

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