Question about Heating & Cooling
Recently my heat provider came out to install new gas meters and now my furnance is not kicking out heat. The blower motor will come on but no heat. even when I adjust the temperature it will not come on.
Do you know if they purged the gas lines? Sometimes when the meters are changed air can build up in the gas line
Posted on Dec 07, 2012
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Posted on Jan 02, 2017
SOURCE: goodman gmp075-3
I am confident the technician(s) have done this but check anyway.
Gas pressure 4-7 inches W.C for natural, 10 - 11 for Propane.
Air filter clean and unrestricted.
Temperature over supply plenum 140 degrees F.
All registers open and unrestricted.
Vent and intake unrestricted and not blocked.
Condensate hoses free of debris and draining.
OK now lets check to see if the furnace is staying on long enough.When it runs for a heat cycle, is the flame staying on until about 2 minutes prior to achieving the set temperature or is it cycling everyfew seconds and never reaching temp? To check you will need to view the flame through a small viewing port of thru the fins in the front door. Watch them for 10 to 15 minutes.
If they are staying on a long time, we will need to see if the room blower is working properly. If they are going out quickly and or cycling. Get the technician on the pone to talk it over. It could be a safety sensor.
If the blower stays on and the burners are on as well, you have a door open somewhere. Just kidding. Remove the thermostst documenting which wires go where. Take the white wire and cross it with the red wire. This will (or should) turn on the furnace. Clamp them together untill the either the house gets warm or you are confident it is not going to reach temperature. If it did get close to the temperature you wanted, it is a thermostat issue. If not, you got me!
And they say we have an easy job! Get beck to us with your results.
Posted on Jan 23, 2008
The flame sensor rod should be cleaned, if that doesn't fix it check the combustion air switch. There should be an error code, look for a blinking light and code chart under the filter door.
Posted on Feb 11, 2010
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