Table of Contents
- Amana Furnaces in Canada: A Reliable Choice
- How to Read Amana Furnace Error Codes
- Amana Furnace Error Codes & How to Fix Them
- Amana Furnace Continuous Flashing – Polarity or Grounding Issue
- What to Do If the Error Keeps Coming Back
- Preventative Maintenance: How to Avoid Future Errors
- Amana Furnace Error Codes FAQs
There’s nothing worse than your furnace shutting down in the middle of a freezing night. You check your Amana furnace, see the LED blinking, and wonder what it means. Don’t worry — we’ve got you covered. This guide will break down each Amana furnace error code, what it means, and how you can fix it (or when you should call in the pros).
Amana Furnaces in Canada: A Reliable Choice
Before we dive into the error codes, let’s take a moment to appreciate why Amana is such a trusted name in HVAC. Founded in 1934, Amana has built a reputation for producing durable and efficient heating systems. These furnaces are known for their longevity, solid warranties, and advanced diagnostics — like the error codes we’re about to discuss.
One reason homeowners love Amana is the brand’s commitment to energy efficiency. Many models come with high AFUE (Annual Fuel Utilization Efficiency) ratings, which means lower energy bills. Plus, their self-diagnosing systems make it easier to pinpoint problems before they turn into costly repairs.
Now, let’s get into those error codes and what they’re telling you.
How to Read Amana Furnace Error Codes
Amana furnaces use a blinking LED light on the control board to indicate specific issues. Here’s how to read them:
- Count the number of flashes before the pause.
- Each sequence corresponds to a different issue.
- Some codes repeat in a cycle, so watch carefully to make sure you count correctly.
❗Pro tip: Before you start troubleshooting, turn off the power to the furnace for safety. And always check your furnace manual for model-specific codes.
Amana Furnace Error Codes & How to Fix Them
Here’s a complete breakdown of Amana furnace error codes, their causes, and how to fix them:
1 Flash – Amana Furnace Ignition Failure
This means your furnace tried to ignite but couldn’t. The most common reasons are a dirty or faulty flame sensor, a gas supply issue, or a malfunctioning ignitor. To fix it, try cleaning the flame sensor with fine-grit sandpaper, ensuring the gas valve is open, and checking for any cracks in the ignitor that may require a replacement.
2 Flashes – Pressure Switch Stuck Closed
A closed pressure switch when it should be open usually means a blocked vent, a clogged condensate drain, or a faulty switch. Start by checking for obstructions in the vent and drain line. If everything looks clear, test the pressure switch and replace it if necessary.
3 Flashes – Pressure Switch Stuck Open
If the switch isn’t closing when it should, it could be due to faulty wiring, a disconnected or cracked tube, or a defective pressure switch. Carefully inspect the tubing for any damage and ensure all connections are secure. If the problem persists, replacing the switch may be the best solution.
4 Flashes – Open High Limit Switch
This error happens when your furnace overheats. A dirty air filter, blocked vents, or a malfunctioning blower motor can be to blame. Start with the easiest fix: replace the air filter. Next, make sure vents are open and unobstructed. If the issue continues, a professional inspection of the blower motor might be needed.
5 Flashes – Flame Detected with Gas Valve Off
Your Amana furnace is sensing a flame when it shouldn’t be. This could be due to a faulty flame sensor or a gas valve stuck open. You’ll need to test the gas valve for leaks and replace it if necessary. Cleaning or replacing the flame sensor might also solve the issue.
6 Flashes – Rollout Switch Open
Flame rollout is a serious issue that can indicate a blocked heat exchanger, improper gas pressure, or a faulty rollout switch. Cleaning the heat exchanger and ensuring the gas pressure is set correctly can help. If needed, replace the rollout switch.
7 Flashes – Gas Valve Circuit Error
A gas valve circuit malfunction could mean a faulty valve or wiring issue. You can test the valve with a multimeter and check for any loose wiring that might need to be repaired.
Amana Furnace Continuous Flashing – Polarity or Grounding Issue
This indicates a wiring or grounding issue. Double-check all electrical connections and ensure proper furnace grounding.
|
Error Code
|
Issue Description
|
Solution
|
|---|---|---|
|
1 Flash
|
Ignition failure
|
Clean flame sensor, check gas valve, replace ignitor
|
|
2 Flashes
|
Pressure switch stuck closed
|
Clear vent/drain, replace switch
|
|
3 Flashes
|
Pressure switch stuck open
|
Inspect tubing, replace switch
|
|
4 Flashes
|
Overheating
|
Replace air filter, check blower
|
|
5 Flashes
|
Flame detected with gas off
|
Test gas valve, clean flame sensor
|
|
6 Flashes
|
Flame rollout detected
|
Clean heat exchanger, adjust gas pressure
|
|
7 Flashes
|
Gas valve circuit issue
|
Test gas valve, check wiring
|
|
Continuous
|
Polarity/grounding problem
|
Verify wiring and grounding
|
What to Do If the Error Keeps Coming Back
If an error code keeps showing up even after troubleshooting, it’s likely a deeper issue that needs professional attention. Some signs you should call an expert include:
- You smell gas or notice a gas leak.
- The furnace is short cycling (turning on and off frequently).
- The blower runs non-stop.
- The furnace won’t heat properly despite a clean filter and no visible blockages.
Ignoring recurring error codes can lead to bigger (and more expensive) problems. A trained HVAC technician can diagnose and fix the issue before it turns into a complete breakdown.
Preventative Maintenance: How to Avoid Future Errors
To keep your unit running smoothly, follow these Amana furnace maintenance tips:
- Replace your air filter every 1-3 months to ensure proper airflow and prevent overheating.
- Schedule an annual HVAC inspection to catch minor issues before they become major problems.
- Keep vents and exhaust pathways clear to maintain proper airflow and prevent overheating or pressure switch errors.
- Test your thermostat regularly to ensure it’s accurately controlling your furnace.
- Check for loose wires and secure electrical connections to prevent control board or polarity errors.
- Inspect your ignitor and flame sensor every few months. A dirty flame sensor is one of the most common causes of ignition failure.
- Listen for unusual noises such as rattling, buzzing, or whistling, which could indicate a mechanical problem.
Taking these small steps can go a long way in preventing furnace issues and avoiding costly repairs.
When to Call a Professional Amana Furnace Repair Service
Sometimes, it’s best to leave furnace repairs to the pros. If you’re in Canada and dealing with recurring furnace issues, our certified HVAC technicians are here to help. We offer fast, reliable service to get your Amana furnace running like new again.
Amana Furnace Error Codes FAQs
1. How do I understand the flashing lights on my Amana Furnace?
Amana furnaces use LED light signals to indicate different error codes. The number of flashes corresponds to a specific issue. For example, one flash indicates an ignition problem, four flashes signal overheating, and six flashes mean a flame sensor issue. To decode the error, open the control panel and check the sticker inside for the error code chart. Understanding these signals can help you troubleshoot the problem or decide if you need professional assistance.
2. What should I do if my Amana Furnace shows an error code with one flash?
A single flash usually means the furnace is failing to ignite. This could be due to a dirty flame sensor, a faulty ignitor, or a gas supply issue. Start by cleaning the flame sensor with fine sandpaper. Check if the gas valve is open and inspect the ignitor for cracks. If the ignitor is damaged, it may need to be replaced. If the furnace still doesn’t ignite, professional service may be required.
3. Why is my Amana Furnace showing four flashes and overheating?
Four flashes indicate that the high-limit switch has tripped due to overheating. The most common causes are a clogged air filter, blocked air vents, or a malfunctioning blower motor. Start by replacing the air filter and ensuring all vents are open and unobstructed. Listen to see if the blower fan is running properly. If the problem persists, a technician should inspect the heat exchanger and blower system.
4. How do I fix a pressure switch error (two or three flashes) on my Amana Furnace?
A pressure switch error means your furnace is struggling with airflow or venting. Two flashes indicate that the pressure switch is stuck closed, while three flashes mean it’s not closing properly. Check for blocked intake or exhaust pipes, clear any obstructions in the condensate drain, and inspect the pressure switch tubing for damage. If the switch itself is faulty, it may need replacement.
5. Why does my Amana Furnace turn on but not blow warm air?
If your furnace powers on but doesn’t heat the air, possible causes include a dirty air filter, thermostat issues, blocked ductwork, or a gas valve problem. First, replace the air filter and ensure the thermostat is set correctly. If the furnace still isn’t heating, check if the gas valve is open and whether the burners ignite. If the issue persists, a professional should inspect the gas supply and control board.
6. What should I do if my Amana Furnace keeps turning off too quickly?
If your furnace turns on and shuts off rapidly (short cycling), it could be due to overheating, a faulty flame sensor, or thermostat issues. Start by replacing the air filter, as restricted airflow can cause overheating. Next, clean the flame sensor and check if the thermostat is positioned near a heat source, which could cause it to misread the temperature. If these steps don’t resolve the issue, the high-limit switch or control board may need professional attention.
7. How can I prevent Amana Furnace errors in the future?
Regular maintenance is the best way to prevent furnace problems. Change the air filter every 1-3 months, clean the flame sensor seasonally, and ensure the vent pipes are free of obstructions. Also, check the condensate drain for clogs and schedule an annual HVAC inspection. Preventative care can improve efficiency, reduce repair costs, and extend the lifespan of your furnace.
8. When should I call a professional for Amana Furnace repairs?
Call a professional if you repeatedly get the same error code after troubleshooting, if your furnace makes unusual noises (buzzing, whistling, or clicking), if you smell gas, or if the unit constantly turns on and off. Also, if you’re uncomfortable diagnosing electrical components or gas-related issues, it’s best to have an HVAC technician inspect and repair the furnace safely.
9. Why is it important to replace the air filter in my Amana Furnace regularly?
A clean air filter ensures proper airflow and protects the furnace from dirt buildup. A clogged filter can cause overheating, increase energy costs, and reduce system efficiency. In some cases, it can even damage the heat exchanger. Changing the filter every 1-3 months helps maintain efficiency, prevent breakdowns, and improve indoor air quality.
10. Can I reset my Amana Furnace after an error code?
Yes, you can reset your furnace to see if the issue resolves itself. Turn off the thermostat, then switch off the power to the furnace for about five minutes. Turn the power back on and set the thermostat to heat mode. If the error code disappears, it was likely a temporary glitch. However, if the same error reappears, further troubleshooting or professional repair is necessary.
Share
