Rheem Furnace - HVAC - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC


Thread Tools Display Modes
Old 12-06-2007, 05:46 PM   #1
Join Date: Dec 2007
Posts: 2
Rewards Points: 10

Rheem Furnace

I have a Rheem furnace that is gas and outside. Here is the issue. The furnace will be working fine and then quits. Today I came home and it was 60 in the house. This has happened several times this year.

When I switch the themostat from off to heat there is an ignitor that lights the pilot. All this works just fine but no gas comes on to the burners.

What tells the gas valve to come on when the pilot is lit?


jsfjets is offline   Reply With Quote
Old 12-06-2007, 06:30 PM   #2
Join Date: Dec 2007
Location: south bend, IN
Posts: 43
Rewards Points: 25

1. the t stat calls for heat
2 usually the inducer mtr comes on next
3this has to PROVe. by either a pressure switch or sometimes a centrifigal switch
4 after that, then usually the ignitor comes on
5 then after it is hot enough, the gas valve opens.

so.. if the ignitor does come on and glows etc.. the gas valve "should" come on. do you have a meter by chance? if you do like DIY's you should get one if you don't already. I have bought cheap ones before, kinda spur of the moment needed 1, and mine wasn't around.. for 20 bucks and they still work fine! IF YOU GET 24 VOLTS AT THE GAS VALVE AND IT DOESN'T OPEN ( FIRE) THEN IT IS THE GAS VALVE. IF YOU DON'T GET 24 VOLTS, IT IS IN A CONTROL. whoops! just noticed I hit caps! sometimes those ignitors LOOK hot enough, but are not hot enough to PROVE they are on.. if you replace that ignitor, do not touch it( the end) (treat it like a halogen bulb)


sixty7flh is offline   Reply With Quote
Old 12-06-2007, 07:00 PM   #3
Join Date: Dec 2007
Posts: 2
Rewards Points: 10

Yes I have a meter but don't for sure know where to check for the voltage on the gas valve. As far as it being hot enough the ignitor lites a pilot lite and there is a metal shield? over it that get red hot. I keep looking for something like a thermo-couple that would send a signal that says the pilot is lit so it is ok to turn on the gas but I don't see anything like that.
jsfjets is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Heil Furnace Burner Problem timothyr HVAC 79 02-12-2014 07:01 PM
Bryant Furnace main burner goes out after 5 seconds Da_Bears HVAC 8 01-03-2012 01:24 AM
installing new rheem furnace to old a coil rad488 HVAC 1 10-17-2007 08:07 PM
Replacing My Furnace, few simple questions compression HVAC 10 02-03-2007 05:00 PM
Furnace stops working once a day - help Da_Bears HVAC 2 01-26-2006 01:19 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1