Question about Goodman GMS90703BXA Heater

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Furnace wont stay on

I have a 12 yr old Goodman oil furnace that wont stay on. I just replaced the ingnitor and wondering if it needs some type of adjustment. It was operating fine, however until we got oil and my wife decided to run the unit, so I am wondering if sentiment got into the nozzle. The nozzle is new, however I had that replaced by a tech. Is there a guide to show how to access the nozzle to find out if it is dirty.

Understanding it's dangerous I did push the reset several times jamming more oil into the system. The furnace will operate all day, however will not start again automatically once it has cooled down overnight, because we also heat with wood and allow the therm to drop to 60 and generally speaking the wood stove will keep the temp above 60.

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  • Nathan Thurman
    Nathan Thurman Jan 20, 2009

    The filter has very little time on it and was changed at an earlier service, however probably has 100 gallons run through it.

    The problem is; the furnace won't come on with out a manual reset. After one reset; It will run long enough to start the blower and then shuts off.

    If I press the reset multiple times it will start, smoke up the house from the burn off and keep going for the rest of the day. It seems once its primed enough it will stay on. Even when it shuts off once it reaches the desired temperature and start back up automatically, however if its left off overnight it goes back to the problem of having to manually restart.

    We have had several techs come out and they have been shady characters, or unreliable. One of which tried to convince us that our furnace needed replacement, but it didn't. The other repair company kept blowing off their appt's. We are hoping to become more knowledgeable, as it seems in our area we get shotty service, or worse.

    Hope this information is helpful and thank you for your reply.


  • subzero_hc May 11, 2010

    Did the tech change the oil tank filter by chance?



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Have you checked to see if oil is coming out of nozzle? you should be able to put a flash light in the axcess hole. Is there sparks going acrosas electroides? Has furnace filters and oil filter been chanded, and furnace been cleaned?

Posted on Jan 20, 2009


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