Heil Furnace Repair Guide 2019
(Updated for 2019)
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.
Please note, the following is for informational purposes only. Any servicing you attempt is at your own risk.
Heil, At a Glance
Backed by 100 years of dependable manufacturing and superior home comfort, Heil makes it their duty to deliver HVAC products that go above and beyond your expectations. Should you experience any issues with your Heil furnace throughout its lifetime, this comprehensive guide will provide you with the tools that you need to troubleshoot common issues.
One of the most important things to remember when considering the endurability of your Heil furnace is that regular maintenance can go a long way. The simplest task is to remember to change the air filter on your furnace regularly. By doing so, you’ll be able to lengthen the life of your unit’s blower motor while also keeping the compressor coils from getting clogged.
An air filter that’s able to function properly will most certainly result in a furnace that’s able to provide its highest level of efficiency.
How to Replace Your Heil Air Filter
- Remove the lower panel towards the front of your Heil furnace.
- Locate your filter. Whether it’s an upflow or horizontal flow model, it’ll be on the side next to the air return or at the bottom of the unit.
- Slide out the whole filter-holding rack, and remove the end cap.
- Once the end cap is removed, pull out the air filter and replace it with a new one. Make sure to insert the new filter in the same direction as the previous one.
- Replace the end cap and then slide the holding rack back inside your Heil furnace. Put the cover back on your unit.
What’s Wrong With Your Heil Furnace?
Common Furnace Problems and Troubleshooting
Always remember to shut your Heil furnace completely off before you open it up to attempt any diagnosis or repair.
|Is your furnace...||The problem might be your...||What's wrong?||How you can fix it:|
|Not heating?||Fuse or Circuit Breaker||Your furnace’s electrical system has potentially shorted, or the power switch has blown.||Reset the furnace-associated circuit breaker. If it has blown, you will have to replace it.|
|Igniter||The furnace’s igniter might either be cracked or defective.||Check the part for cracks, replace the igniter if it’s cracked.. If it isn’t, test with a multimeter for continuity.|
|Cycling irregularly?||Thermostat||Your unit’s thermostat might be adjusting incorrectly.||Should the thermostat have an adjustable calibration scale, use this to adjust the heat anticipator. If this doesn’t work or you don’t have a scale, replace the thermostat.|
|Not blowing hot air?||Blower Motor||The blower motor might be burnt out. If this doesn’t seem to be the case, then the connecting belt may have snapped.||First, see if power is reaching the motor. If it is but isn’t running, the motor has failed. If the motor runs but air doesn’t move, the connecting belt has probably broken. Replace the belt.|
|Blowing too much air?||Control Board||If the relay that regulates the blower motor on the control board has failed, it will continually send voltage to the motor.||Replace the control board.|
|Thermostat||The contact that controls the blower motor on your thermostat may be sticking.||Use a multimeter to check for continuity. If it appears the thermostat is the issue, replace it.|
|Starting and then stopping shortly after?||Flame Sensor||Your furnace’s flame sensor detects if a flame is present. If it is either defective or dirty, it will not be able to detect a flame.||If dirty, use a fine abrasive pad to clean the sensor. If faulty, replace the flame sensor.|
Heil Furnace Error Codes
|Error Codes||What this means||How to fix it|
|LED flashing like a heartbeat||Control has 24 VAC power||n/a|
|Two LED flashes||Unit’s pressure switch didn’t open||Check for an obstruction in the pressure tubing|
|Three LED flashes||Unit’s pressure switch didn’t close or reopened||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|
|Four LED flashes||Limit circuit fault: either a limit or flame rollout is open||Check for: restricted vent; loose blower wheel; excessive wind; dirty air filter; or defective blower|
|Five LED flashes||An abnormal flame proving signal, the flame is likely proved while the gas valve is de-energized||Check for a leaky gas valve or a gas valve that is stuck open|
|Six LED flashes||Failure to ignite or the flame sensor was lost while running||Check for: an ungrounded flame sensor; defective hot surface ignitor; control ground continuity; inadequate flame carryover; or rough ignition|
|Seven LED flashes||Limit circuit lockout||A lockout will occur if the limit or flame rollout is open for longer than 3 minutes. Control will auto-reset after 3 hours.|
|Eight LED flashes||Gas heating lockout, control won’t auto-reset||Check for a miswired gas valve or a defective control valve|
|Ten LED flashes||Polarity is reversed||Review instructions to correct polarity|
|1 + 2||Blower is on after power up||Occurs if the unit is powered up during a call for heat or opens while the blower is on delay|
|6 + 1||Ignition lockout||Control will auto-reset after 3 hours|
|LED is off||Secondary voltage fuse is open||Check whether the door switch isn’t closed or for a short circuit|
|LED is on||Control circuitry lockout||Will auto-reset after 1 hour|
|LED is solid||Gas valve relay is stuck while open, flame sense circuit failure, or software-check error||Reset power to clear the lockout and then replace control if status code repeats itself|
When to Get a Technician for Heil Furnace Repairs
Should you begin to experience some issues with your Heil furnace, it’s never a bad idea to contact a trained heating and cooling technician. Although you may be able to diagnose your unit’s issue, repairing it yourself can sometimes be an unworthwhile task. Some of these issues are:
If your furnace repeatedly turns itself on and off, it’s likely that the unit is not circulating properly.
Should your Heil unit stop producing heat, begin to leak or drip, or make previously unheard noises (banging, whistling, gurgling, etc.), an internal component could potentially be broken.
Who to Call For Heil Furnace Repairs
Although it’s always a worthwhile venture to consult online consumer reviews when deciding on which technician to call, remember that these can’t always be trusted to make your final decision. To find yourself a trained technician who can exceed your expectations, let us help!
Our own independent certification program is an excellent reference tool available for you to use when in need of a furnace repair. Our goal is to connect Canadian homeowners with trustworthy, local businesses. We guarantee these companies meet a wide array of criteria so that you are able to make an informed decision when it comes to your furnace needs.
Heil’s Warranty Coverage
Whichever company that you originally used to install your furnace may provide some warranty coverage. However, depending on what Series of Heil furnace you have, the manufacturer’s coverage may vary.
- For QuietComfortⓇ Deluxe Series units, your furnace’s coverage will include a limited lifetime warranty on the heat exchanger, a limited 10-year No Hassle Replacement™ warranty, and a limited 10-year warranty on parts.
- For QuietComfortⓇ Series furnaces, coverage includes a limited lifetime warranty on the heat exchanger, either a limited 5- or 1-year No Hassle Replacement™ warranty, and a limited 10-year warranty on parts.
- And for PerformanceⓇ Series units, your coverage will include a limited 20-year warranty on the heat exchanger as well as a limited 10-year warranty on parts.
➤ Protect your Heil furnace: Register and access your Heil furnace warranty here
Heil Model Numbers
Current Heil Models
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