carrier furnace troubleshooting

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carrier furnace troubleshooting
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Carrier furnaces are sturdy, but the models can vary widely in terms of size and design. When it comes to fixing one of these furnaces things can get complicated. Complicated fixes should be left to the pros but luckily there are a few simple troubleshooting steps that anyone can follow to get Carrier furnaces up and running again.


Firstly, make sure your Carrier furnace is getting power. If it isn’t, check your circuit breaker and fix any tripped circuits. Next, check the thermostat and make sure it’s in the right mode. Set it to the heat position and input your desired temperature (ideally above 70 degrees for proper heating). The next steps include checking your furnace filters to make sure they’re clean and replace them if they aren’t.


If your furnace still isn’t heating: The problem could be the igniter as it may be cracked or faulty. Check it for cracks and if you find anything, replace it. If you don’t find anything, you can check for continuity with a multimeter.


If your furnace is cycling irregularly: then your thermostat may be incorrectly adjusting itself. To fix it, see if the thermostat has an adjustable calibration scale. If it does then adjust the heat anticipator. If this doesn’t work, then you should call your HVAC repair company as you may need a new thermostat.


Taking the time to go over these few simple things may just help save valuable time and money! Any regular maintenance you can do (like changing the filters) will keep your Carrier furnace happy for a long time.


carrier furnace troubleshooting


See What Our Customers Are Saying:

by Nancy H. from Oshawa on Twintech Heating and Cooling

Work was performed in a clean and timely manner. The furnace and metal work was performed by the Twintech team (did not require separate contractor to do the metal work). Energy audit was arranged and promised rebates were received. The overall price was very competitive. We have recommended Twintech to several of our friends and family. Awesome job.

by Syd from Whitby on Twintech Heating and Cooling

Grant and Greg installed a heating and AC system in our new Linwood post and beam home. Post and beam can be challenging structures for running ductwork and their high ceilings and open concept frequently frustrate efforts at balancing air flow and controlling temperatures. But these guys did it and did it right the first time. Even the building inspector was impressed with what he saw. More importantly, the boys brought a high degree of trust and integrity to the job. Something in short supply these days.

by jenner iksmom from Oshawa on Twintech Heating and Cooling

Very polite and professional. They removed my o
ld furnace and A/C and installed my new ones. They were efficient and thoroughly cleaned up when they were done! I would highly recommend them!

by Rob from Toronto on Twintech Heating and Cooling

Pro from start to finish. They were able to fix my gas fireplace at very little cost as well.

by murray mcmichael from Ajax on Twintech Heating and Cooling

Excellent installation very knowledgeable gentlemen! Would highly recommend them to all my friends for any hvac work !

by Private User from Private User on Twintech Heating and Cooling

I have used Twintech many times over the years. They always arrive quickly and get the issue fixed. The most recent incident was when my air conditioner broke last week I called Greg at 11:30am and he was at my home by 2:30pm he had the unit fixed by 3:30pm. Twintech are very reliable and honest and they are experts in the field. I have already recommended them to many of my friends. I would not use anyone but them for my heating and air conditioning issues.

by Kate A in Pickering on Twintech Heating and Cooling

I would highly recommend these guys, professional, fast and competitive pricing. I moved into this place with no working AC unit with a 8 month baby, he was able to come with in a week to fix even in the busy summer days. He really values his customers , I am already recommending to my neighbors.

by Private User in Whitby on Twintech Heating and Cooling

Very impressed they arrive to quote even though I had forgotten to call them back to confirm date & time. They showed the day before installation to deliver the unit. Returned the next day as promised at 9am. Project was completed in a professional manner. They even fixed a few things that they noticed were not installed correctly, or to code by previous heating & air contractors we had at our residence before. Would recommend this company to everyone!

by Private User from Bowmanville on Twintech Heating and Cooling

Greg removed old oil furnace and oil tank from basement relocated new Napoleon propane furnace to allow duct work to be rerouted to a much more suitable location. Moved air conditioner to the new furnace. Dave recommended two available grants to assist with cost. They kept to their original quoted price which was substantially lower than a competitors for the same furnace and work. They completed the work as stated when stated and left the area clean and tidy. We are very pleased with the outcome.

by astephenson in Oshawa on Twintech Heating and Cooling

Twintech installed a Goodman furnace and ac init. Very professional install, both units are working well.

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carrier furnace troubleshooting