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Steve G.
Steve G., Handyman
Category: HVAC
Satisfied Customers: 17133
Experience:  VP of electronic repair company and home theater advisor.
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Why Is My Central Heating Blowing Cold Air?

Resolved Question:

My central heating unit is blowing out cold air. Any idea what might be the problem?
Submitted: 6 years ago.
Category: HVAC
Expert:  Steve G. replied 6 years ago.

Is your furnace gas or electric?

If electric, do you have a heat pump?

Customer: replied 6 years ago.

Electric and I don't think it has a heat pump.

Expert:  Steve G. replied 6 years ago.

It could be several things. Let's start with the easy stuff.

Check in your breaker panel to see if the breaker for the heating elements in your furnace has opened. If it has, click it first to off and then to on.

Then go to your thermostat and turn it up to call for heat.

Let me know if you have done that and tell me what happens.

Steve G., Handyman
Category: Home Improvement
Satisfied Customers: 17133
Experience: VP of electronic repair company and home theater advisor.
Steve G. and 4 other Home Improvement Specialists are ready to help you
Customer: replied 6 years ago.

I did find the heating element breaker and turned if off and on. But still no hot air

Expert:  Steve G. replied 6 years ago.

OK. So no hot air.

It could be several things that will all require opening up the heating unit and checking.

The elements could be burned out.
The high limit thermostat could be bad.
The circuit board that controls heating and cooling could be bad - possibly a relay but I have seen the boards have blown components.

Are you capable of checking the furnace out or will you be calling in an HVAC person?

Customer: replied 6 years ago.
No I'm not capable of checking out the furnace. I will probably have to call in an HVAC person unless my husband can check it.

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