20 Most Recent Intertherm P3RC-030K Air Conditioner - Page 5 Questions & Answers

Blow down the tubes on the pressure switch you should hear it click . Take the tubs off the pressure switch clean the connection inside with a small drill bit this may get it working again if not possible new pressure switch . Also check flame sensor is clean .

if it dose not stay on then properly the thermocouple needs changing or pilot could need cleaning.

There might be a lot of different reasons why it's not working. Need to call a service Technician

The Lo reading on the thermostat comes on when the temperature is below the range of the thermostat .the lowest readable temperature is 40f I believe. So anything below that the thermostat just reads Lo. This is normal for this brand of thermostat. hope this helps. Bob

That is the first thing to check. You can trace voltage to and from hi limit switch, if power is there and power applied to heating element check element. Please e careful, electricity respects no one.

I don't think that is a good model #. Here is a link to their site and the furnace models there have a totally different type of #. http://intertherm.net/Products/Furnaces/GasFurnaces.aspx If you really need the burner, Id call Intertherm and then they can tell you what data plate you should be looking at. http://intertherm.net/DealerServiceLocator.aspx

You need combustion air to keep pilot and gas burning. You should have louvers or vents on that door. If you don't, you may have the blower door and combustion air doors switched. I have been on a couple services calls where the customer had reversed the doors without realizing it.

You have a bad or dirty flame sensor .remove and clean with sand paper then reinstalled

try going to YOUTUBE and insert (intertherm mgh 055 furnace) in the search window for illuminating videos

Google it/utube/customer service

turn power off and put red wire in with white wire at tstat and turn power on. if heat works it's possibly a configuration issue or a tstat issue. keep us posted. If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

has this tstat worked the heat pump before? possible refrigerant issues If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79