Question about Heating & Cooling
What size furnace filter do I need?
Posted by Anonymous on
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Posted on Jan 02, 2017
On the bottom of the indoor unit should be a cover or tray. Sometimes a large grill inside the house, close to the unit is where they are placed. Good luck
Posted on Apr 25, 2009
The sequence of events for furnace operation is -
Fan purge for 30-45 seconds. During this time, a pressure switch is actuated by the running of the purge fan, proving the control board the purge fan is running.
After purge and purge prove, the hot surface ignition and or spark begins. After a few second delay, the gas valve will open. The control board then monitors for flame prove through another sensor located near the burners. If there is no flame within 3-5 seconds, the gas valve closes. It will repeat this process, usually 3 times, before it shuts the system down, which requires a power down of the system to reset.
I have seen trash get into the hose between the purge blower and the purge switch. But you could be having other problems.
Posted on Dec 17, 2009
This model is equiped with a diagnostic error control. Take off the front panels and look for a wiring diagram pasted on the reverse side of the panels. On this diagram there will be a chart telling you what 4 blinks represent and where to start looking for the issue. I suspect the air filter may be dirty or the pressure switch may be bad, however make sure the condensate hoses are free of any debris. Good luck to you!
Posted on Apr 25, 2010
from my experience with goodman units ,it could have been a gas supply problem there are so many protective sensors that i dont think it is the unit by the way is it electronic ignitor or pilot
Posted on May 16, 2010
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