My goodman funace gmpn 100 4 is blowing but no heat.
Goodman furnace running but not heating.
Goodman furnace not igniting burners if this is the case it could be several things depending upon the error code that you are getting.
The status light is blinking 4 times over and over.
If the igniter is not cracked use a multimeter to test the igniter for continuity.
If the igniter is cracked replace it.
As if the furnace is just recirculating the air in your house without actually heating it.
All you need to do is locate the gas supply valve and rotate it in a counterclockwise direction to open it.
The blower is staying on even with the thermo turned off.
The house is cold.
If the blower motor hums check the blower fan to ensure that it spins freely.
If power is getting to the blower motor but the motor does not run the motor may be burned out.
This may be the case if your goodman furnace won t ignite but the light is on continuously.
There s nothing to it.
First make sure that power is getting to the motor.
To determine if the igniter is faulty remove the igniter and inspect.
If the blower motor is burned out replace it.
If the burner does not ignite gas could be not reaching the burner the flame may not be lighting or the vent motor may not be running.
Is this a parts problem or too much for a good rooky to handle.
The ignitor is not heating up and the exhaust fan is not turning on.
If after doing all these things the furnace does not produce heat it might require a new igniter in pilot less furnaces.
Simply use hvac tape to cover up any leaks and reattach any sections that have become detached.
It could also be the pressure switch or blockage in the vent.
The igniter gets very hot and glows bright orange to light the gas burner.
One of the most common culprits of a furnace that is having a difficult time lighting is a low gas supply.
As a result your furnace will continue to run.
You can hear the furnace running and you can even feel air coming out of the registers.
The blower motor blows air through the return vent past the heat exchanger and into the home s venting.
Lastly if your home is not weatherized your furnace might not be able to reach the temperature that you set your thermostat to.
Make sure that your thermostat is set to heat and not cool and ensure that the fan is set to auto.
If the igniter fails or cracks the furnace won t heat.
Turn the circuit breaker off and on to reset an electric furnace.