Please note, the following Ruud Repair guide is for informational purposes only. Any servicing you attempt is at your own risk.
➤ A complete Ruud furnace repair guide, from how to replace your air filter, to troubleshooting and error codes, model numbers and more!
Amana is regularly recognized as the maker of some of the most energy-efficient furnaces on the market, with many of their units receiving ENERGY STAR® certification.
This guide will provide you with some answers and potential fixes should your own Amana furnace run into any need for repair.
How to Replace Your Air Filter
An important but often overlooked maintenance task is remembering to change the air filter on your furnace regularly. When your filter is working properly, your furnace is able to function at peak performance.
An efficient filter also lengthens the life of your blower motor, and keeps the compressor coils from getting clogged.
- Open or slide the door panel to get access to your Amana furnace.
- You will usually find the filter near where the cold air enters the unit, either in the cold air return duct or the entrance to the blower chamber (sometimes in both locations).
- Slide out the old air filter and replace it with a new one.
- Make certain that the “air flow” signifiers on the filter are facing the correct direction, towards the blower and away from the cold air.
- Replace the panel or door to your furnace.
Additionally, it’s also important to regularly vacuum vents and check registers to make sure that they aren’t blocked. And it’s never a bad idea to clean inside your furnace, vacuum both in and around the unit’s blower to remove extra dust and debris that may have accumulated.
Ruud Furnace Repair Guide
What’s Wrong With Your Furnace?
Remember to always turn your furnace completely off before opening it up to look around or attempt any fix.
|Is your furnace...||The problem might be your...||What's wrong?||How you can fix it:|
|Not heating?||Circuit Breaker/Fuse||The electrical system that powers your furnace has likely shorted.||Reset the circuit breaker that’s associated with your furnace.|
|Igniter||The igniter might either be cracked or defective.||Check to see if the igniter is cracked and needs replacing. Otherwise, test it with a multimeter for continuity.|
|Cycling irregularly?||Thermostat||The thermostat might be adjusting incorrectly.||If your thermostat has an adjustable calibration scale, use it to adjust the heat anticipator. If this doesn’t work, replace the thermostat.|
|Not blowing hot air?||Blower Motor||Either the blower motor is burnt out, or the motor’s connect belt has snapped.||See if power is reaching the motor. If it is, but the motor isn’t running, replace the motor. If the motor runs but air doesn’t move, the connecting belt has snapped. Replace the belt.|
|Blowing too much air?||Control Board||Your furnace’s blower motor is continually being sent voltage due to a failed relay on the control board.||You will have to 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 the part.|
|Starting and then stopping shortly after?||Flame Sensor||The 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.|
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Ruud Furnace Error Codes
|Error Code||What this means||How to fix it|
|LED is steadily on||Normal fault detected.|
|Single LED flash||Failed to detect flame within three attempts for ignition, 1-hour lockout.||Reboot system.|
|Two LED flashes||The pressure switch is stuck open or induced draft blower problem detected.||Try to manually close the switch, replace the switch, or check blowers and vents for air pressure.|
|Three LED flashes||The limit switch is open, or the roll-out control is engaged.||Check for a restricted air vent, loose blower wheel, a defective blower, or a dirty air filter.|
|Four LED flashes||The pressure switch is stuck closed, or the switch won’t open.||Check for an obstruction in the pressure tubing.|
|Five LED flashes||N/A|
|Six LED flashes||Line and Neutral are reversed.||Control board or the furnace’s ground could be defective.|
When to call a professional to repair your Ruud furnace
While you can troubleshoot a number of issues on your own, you may want to contact a trained furnace technician should you be experiencing certain issues with your Amana unit.
If after your troubleshooting your furnace still isn’t producing any heat, is leaking or dripping, or is making strange noises (gurgling, banging, whistling, etc.), there might be some broken internal components within your unit. In this case, you will want to contact a trained technician to service your Amana furnace.
Also, if you notice that your Amana furnace is continuously switching itself off and on, you may want to call a technician. This may be a sign that something is not circulating properly within your furnace, possibly tripping up the sensors.
Who Should You Call?
Once you’ve begun experiencing issues with your Amana furnace, it can be difficult to know who to call.
It’s always a good idea to consult online consumer reviews to initially narrow down your local business options, but it’s important to understand that these can’t be used as de facto resources for making your final decision.
If you’re having trouble choosing the right furnace specialist, we can help! Refer to our own independent certification program to get free quotes from partner heating and cooling companies near you. We guarantee our certified partners meet specific criteria to ensure that Canadian homeowners are able to make informed decisions when it comes to their furnace needs.
Ruud’s Warranty Coverage
Aside from the warranty provided by whoever installed your unit, Amana furnaces are all covered by the same comprehensive warranty. This includes the following:
- Limited lifetime warranty on the heat exchanger: if it fails during the first 10 years of ownership, Amana will replace the entire unit.
- Limited 10-year warranty on all functional internal components
Ruud Furnace Model Numbers
Discontinued Ruud Furnace Models
Air Command 90
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