Question about Heating & Cooling
Hmm, spiders in the pressure switch tube, not impossible however they usually go for the gas orifice, and yes I'm serious. If the problem is in the pressure switch tubing it is usually condensation, which is normally present in the vent system. If the tube loops down and back up then this makes a water trap, which will not allow the pressure switch to sense the pressure from the vent motor. Otherwise there could be an issue with the venting, also any dips or sags will cause a water trap. did he use a manometer to determine this issue? if the venting, the heat exchanger and the connecting tube are fine, then it could be a defective pressure switch. It's simply a proccess of elimination, by inspection, not parts replacement. The pressure switch is nothing more than a diaphragm membrane which is pulled or pushed by the pressure difference created by the vent motor, a calibrated spring determines how much force is needed to move the diaphragm and close an electric switch. Not sure if that will solve the issue, but it should give you somewhere to start.
Posted on Sep 26, 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 03, 2016 | Ruud RGTM10ERBJS 100K BTU 95%...
Nov 08, 2014 | Heating & Cooling
Sep 11, 2014 | Heating & Cooling
Feb 02, 2010 | LG LW1200ER Air Conditioner
Jan 05, 2010 | Heating & Cooling
Jan 04, 2010 | Heating & Cooling
May 06, 2009 | Ruud UBHC Air Conditioner
Feb 05, 2009 | Ruud UBHC Air Conditioner
335 people viewed this question
Usually answered in minutes!