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thall860 10-26-2008 04:23 PM

Carrier furnace problems

I have a 6 yr old carrier furnace. It will turn on, burners will light and the blower will run for about 3-4 minutes then shut off cool down and do it all over again until the house heats up to the thermostat setting.

I am thinking it is a sensor but I have no idea.

We have a new baby in the house and a MN winter coming up so any help would be appreciated.

hvaclover 10-26-2008 05:04 PM

Try cleaning the sensor with steel wool.

One thing has me concerned is the blower.

Try the sensor first and post back how things went.

bervin306 10-26-2008 09:02 PM

it could also be going off on limit. Is your filter clean? Your A coil could be pluged not letting air to flow through it.

hvaclover 10-26-2008 11:32 PM

It's possible it's a limit, but the fan would keep running to dissipate the excess heat if that was the case.

beenthere 10-27-2008 08:29 AM

New baby.

Whats an old baby?

LOL.. Just kidding with you.

Since you have a baby.
You may want to have your furnace gone over by a service company, to have the whole unit checked out.

Unless you can just leave work in the middle of the day, if it quits working later again.

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