Question about Goodman GMS90703BXA Heater
Unit in closet question whether switch is bad or blockage in flue or elsewhere. The inducer blower seems to be fine.
What should pressure be at inducer or switch?
The problem is your gettign a code and the legend is telling you its the pressure switch? From your description.
Well it is going to be rather difficult for you to check the switch without a .10" gauged water manometer gauge. It would be easier and cheaper for you to purchase another switch but if its only 2 years old the factory warranty is usually 5 years on parts. All you'd owe for is labor and freight if you have to have it sent to you. Take your model and seril no and go to who you purchased iot from and tell them what code your getting.
Some of these pressure switches and the boards that control them look for the switch to acuate both ways on and off knowing that the switch is actually working and not stuck. So you could start out by jumping the correct NC normally closed circut turn on the furnace and remove this jumper and then close the NO normally closed circut with a jumper. This isnt a fix but may help you see if the switch is actually at fault. If you get it to lite off let it cycle back off and note if it works all way through the cycle. If it does Your problem is most likely the switch because you just did all it does only by hand. DO not leave it this way because you can cause a more seveer problem and it is can develope dangerious consequences. This is just 1 way to check the switch. Another way is to check it electrically. If your femilur with open and closed circuts check across the closed and open circut whith it off then with it running and (if it has 3 terminals wires in, if it just has 2 wired in then it is not going to look for one of the operations Ive discribed). And then check and see if the voltages reverse while beginnign to lite off. If it does reverse Im betting you have a different problem and the swich is what the board has been told is giving the trouble.
Hope this is clear. If not get back to me. If it helps please grade me accordingly. THANK you and GOOD LUCK
Posted on Mar 04, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 11, 2017 | Goodman Heating & Cooling
Jan 23, 2008 | Goodman GMS90703BXA Heater
Feb 24, 2015 | Filter Heating & Cooling
Mar 19, 2017 | Heating & Cooling
Mar 05, 2011 | Heating & Cooling
Jan 22, 2011 | Goodman GMS90703BXA Heater
Jan 20, 2011 | Heating & Cooling
Mar 27, 2010 | Goodman Heating & Cooling
Nov 23, 2008 | Goodman GMS90703BXA Heater
110 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: