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Why Has My Amana Furnace Shut Off?
Posted On: November 27, 2023
If your furnace has shut off unexpectedly, there could be several reasons behind it.
Here are some common issues that might cause a furnace to shut off, and it's important to note that for safety reasons, it's recommended to consult a professional HVAC technician to diagnose and address these problems.
Here are some potential reasons for your furnace shutting off:
Thermostat Issues: Incorrect thermostat settings or a malfunctioning thermostat could be causing the furnace to shut off.
Check the thermostat settings to ensure they are configured correctly, and replace the batteries if applicable.
Clogged Air Filters: Dirty or clogged air filters can restrict airflow, causing the furnace to overheat and shut off as a safety measure.
Regularly check and replace the air filters to ensure proper airflow.
Flame Sensor Issues: The flame sensor is a safety device that detects the presence of a flame.
If it's dirty or malfunctioning, the furnace may shut off.
Cleaning or replacing the flame sensor can resolve this issue.
Limit Switch Tripped: Furnaces have a limit switch that shuts off the furnace if it detects overheating.
This can happen due to restricted airflow, a malfunctioning blower motor, or other issues.
A professional technician can inspect and address these issues.
Gas Supply Issues: Check to ensure that there is a steady supply of natural gas or propane to the furnace.
If there are issues with the gas supply, the furnace may shut off.
Pilot Light or Ignition Problems: If your furnace has a pilot light, ensure that it is lit.
For newer models with electronic ignition, problems with the ignition system can cause the furnace to shut off.
Faulty Blower Motor: A malfunctioning blower motor may prevent the proper circulation of air, leading to overheating and automatic shutdown.
A technician can inspect and repair the blower motor if necessary.
Issues with the Control Board: The control board is a critical component that manages the furnace's operation.
If there are issues with the control board, it can lead to unexpected shutdowns.
Professional diagnosis and replacement may be required.
Pressure Switch Problems: Modern furnaces often have a pressure switch that ensures proper ventilation.
If there are issues with the venting system, the pressure switch may be triggered, causing the furnace to shut off.
Safety Features Activated: Furnaces have safety features that automatically shut down the system in case of overheating, gas leaks, or other potentially dangerous conditions.
Because furnaces involve gas and electrical components, it's crucial to prioritize safety and consult with a qualified HVAC technician for a thorough inspection and proper resolution of the issue.
Regular professional maintenance is also recommended to prevent unexpected shutdowns and ensure the efficient operation of your furnace.
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See What Our Customers Are Saying:
Aug 8, 2025
We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.
Aug 8, 2025
Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!
Feb 18, 2025
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
Feb 18, 2025
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
Feb 18, 2025
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
Feb 18, 2025
Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!
Feb 18, 2025
Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.
Aug 17, 2024
I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. Ive used the company in the past for my furnace so I was happy when I recognized Greg at my front door. Hes great and the service is always top notch. Id highly recommend using twintech for honest, superior service in the Durham region. Thanks!
Aug 13, 2024
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
Aug 12, 2024
Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!
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