Ask Experts Questions for FREE Help !
Ask
    dharma1123's Avatar
    dharma1123 Posts: 3, Reputation: 1
    New Member
     
    #1

    Oct 4, 2008, 10:11 AM
    Heil Furnace No heat, Blower Runs Contantly
    I have a Heil gas furnace SP80 with electronic hot surface ignition.
    The burners are not working, but the blower is running constantly, even if the thermostat is on the off position. I have tried to reset the unit, but it doesn't work. I had a technician come out and he got it to work for 20 minutes, and said it was loose connections. But now he things I need to change the control board. From other postings, but not for a Heil, the recommendations were to change the relay, pressure switch or low limit switch. Do I really have to change the whole control board? Please help!:confused:
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Oct 4, 2008, 01:32 PM
    It might have tripped on the safety high temp control. On many units it will trigger the blower to run as if the unit has over heated. Look on the wiring diagram on blower door to see if you can find it on your unit.
    dharma1123's Avatar
    dharma1123 Posts: 3, Reputation: 1
    New Member
     
    #3

    Oct 4, 2008, 07:29 PM
    Thank you so much for replying hvac1000! The tech said that he checked the temp. limit sensor and it was fine and that is why he now thinks it is the control board. Does that sound right to you?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #4

    Oct 4, 2008, 07:34 PM
    Yes if the limit sensor is OK then the board is the next logical item. They are expensive. If he relpaces it and it does not do the trick it is his responsibility to remove it and not charge you for the board. I say that because I have seen many invoices where the service tech said it was the board and was not then they want to leave the board in the unit and charge the customer for something they did not need.
    dharma1123's Avatar
    dharma1123 Posts: 3, Reputation: 1
    New Member
     
    #5

    Oct 4, 2008, 07:59 PM

    Thanks again hvac1000! I didn't know that I could make him remove it and put the old one back! Also, any idea as to how much it costs?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #6

    Oct 4, 2008, 08:04 PM
    I didn't know that I could make him remove it and put the old one back

    If a service tech tells you that a part is going to repair your unit and it does not because the part they replaced is not defective demand they your GOOD part be put back in the unit. Many times a service tech will say that 2 or more parts are defective causing the problem but that is a real LONG shot since over the vears usually only one part is causing the problem.

    I really hate to guess at cost since it is variable in different parts of the country but I would get a price from him with a separate price for the labor to replace it and post the prices here. I am sure there are many service techs here who will tell you if you are getting ripped off or not.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Carrier Gas Furnace blower runs on/heat won't come on [ 3 Answers ]

I have a carrier gas furnace model 58DP100 . The fan runs continuously and the gas burners will not ignite ( the pilot is lit ) HELP... please .

Heil Furnace blower won't come on UPDATED [ 3 Answers ]

Ok It is a Heil gas furnace. No belts. The motor I hear running is apparently the electronic ignition that comes on when I turn the electric on to the furnace. The burner fires, heats and goes out once heated up, no blower comes on. I was told to clean the heat sensor since it may be corroded....

Heil furnace fires up but blower motor shuts down [ 2 Answers ]

I have a Heil high efficiency furnace about 15 years old. Sometimes the burner will start and the exhaust blower then the blower fan will blow for a short time and stop. The burner will still be very hot. It used to continue to run until the furnace cooled down. What could be wrong?

Blower won't come on Heil furnace [ 2 Answers ]

I have a heil furnace in a home I just purchased. The first day it worked fine. Second day, it fires up, I can hear a motor running, but the blower doesn't come on. Relay switch? Thank You!

No heat, blower runs constantly, carrier gas furnace [ 7 Answers ]

This am we I got up the blower on my carrier series 100 gas furnace (approx 10 years old)was running and blowing out cold air. Even with the thermostat turned to off the blower runs constantly. The only way to stop the blower from running is to turn the switch on the side of the furnace to off or...


View more questions Search