How can I repair a heater that is not blowing hot air?

I have a fairly new furnace and it doesn't seem to do the job the old one did by any means :( They also told me that the new ones don't last nearly as long. Is yours gas? I was having a similar problem and for me, the sensor needed to be cleaned. It only took a few minutes but once it was cleaned the problem resolved. It had buildup on it and so was triggering it to turn off every 5-10 minutes. Good luck! Hope you are able to figure it out.

I would call a professional to look at it.

Is it still under service warranty? Could you have them back for a check and repair if needed?

You are probably still under warranty, give them a call. Have the make and model numbers ready, you'll probably be talking to their hotline where they can guide you, the homeowner, on what basic things you can do to troubleshoot before getting service.

One thing I would suggest if to check the filter and make sure it is clean or recently replaced.

Get a temperature gauge and check the air that is leaving the register. We had a new unit installed in 2019 and I agree, the air is not as hot as the 1999 unit it replaced. However, it is hot enough to heat our 2,800 square foot house.

If it isn't heating your home, it may not be the correct size.

Hopefully your furnace is still under warranty. You should not be feeling a vibration. Perhaps it wasn't installed exactly correctly. I'd suggest getting the installer to come back and check the entire system out to see why the furnace is running so often. Not right to do that!

I agree with the others. If you can't utilize the warranty, or even if you can, check your filter, and get a trained HVAC person in to check it out. I have to change my filter monthly to keep it running efficiently. If you burn candles I've been told it gets dirty much faster. Please get it checked out.

Hi Linda,

I have another idea. Have you had your furnace serviced every year? If not, that could be the problem. Condensation can build up inside the furnace and if wasn't serviced the ignition (I think that's the part) might not be working correctly. The reason it come on is that it's trying to work. You don't get heat because, even though it's trying to work, it can't because of the buildup, so it turns off. If you haven't had your furnace serviced each year, call a heating contractor and get someone out to fix it so it will work again. If you have been having your furnace serviced every year, ignore what I said but call someone in anyway. Something is not working right. Wishing you the best.

Another potential source of the problem maybe a draft hitting the thermostat. Hold a lit match or a lit incense stick in front of the thermostat to see if you have draft. If so fill it in with door/window caulk at the source. Also those those energy savers for outlets might reduce a draft.

Hello

Linda,

Have Furnace & Heater Serviced it could be dangerous to leave it any longer...............May only need cleaning out, but unless you know what you are doing it could be very mucky.......

Is it still under warranty?

Check out this video https://www.youtube.com/watch?v=XrxV6I8C4yY

Heating element

Hi Linda, hope this link helps you out, the newer furnaces are very finicky compared to the oldies

https://kaiserac.com/10-reasons-furnace-blowing-cold-air/

Is it a gas furnace? If so, there are several possible reasons why a gas furnace may not be blowing hot air. Here are some of the most common causes:

1. Dirty air filter: A dirty air filter can restrict the flow of air through the furnace, reducing its ability to heat the air.
2. Malfunctioning thermostat: If the thermostat is not functioning properly, it may not be sending the correct signals to the furnace to turn on or to heat the air to the desired temperature.
3. Malfunctioning ignition system: If the ignition system is not working properly, the furnace may not be able to generate enough heat to warm the air.
4. Clogged burners: If the burners are clogged with dirt or debris, the furnace may not be able to generate enough heat to warm the air.
5. Damaged or worn-out components: Any damaged or worn-out components within the furnace, such as the blower motor or the heat exchanger, could cause it to stop working or to perform poorly.
6. Lack of fuel: If the gas supply to the furnace is interrupted, it will not be able to generate heat.

To troubleshoot the issue, it is important to check for these potential causes and address any problems that are found. In some cases, it may be necessary to call a professional HVAC technician to diagnose and fix the issue.

If you are using a heat pump, you may want to read more on why your system is blowing cold air on heat