[Tom Hyzy]

My daughter bought a house earlier this year, she just started using her furnace in the past month or so. We've noticed that the Rheem stat she got with the house does not run heating programs as scheduled. The furnace will turn on when she raises the stat temp by at least 2 degrees, but she has to do it manually in order to get it to work. I've been into the installer configuration programming, there doesn't seem to be anything in there that would prevent the program from running, so I'm stumped. This stat has a "V" wire, so I'm assuming that the Rheem furnace she has is a modulating furnace, but I'm not 100% sure of that.

Attached is a pic of the stat wiring. Can anyone say whether there's anything obvious here that is wired incorrectly, causing the program not to run? Thanks for any help.

 

[NY2GA01]

looks like a big mess.

I would call in a pro to clean that up and foind out whats going on.

take a picture od the furnce so we can tell you a little about it.

 

[rider77]

So the unit doesn't have air conditioning?

 

[Tom Hyzy]

So the unit doesn't have air conditioning?

Correct, just heat from a gas-fired Rheem furnace.

 

[BaldLoonie]

Mod furnace, I see one wire wrong causing this issue. Look at the manual again. I'd probably get in trouble if I told you what it was.

 

[Tom Hyzy]

Mod furnace, I see one wire wrong causing this issue. Look at the manual again. I'd probably get in trouble if I told you what it was.

Thank you BaldLoonie. Is it W2 that should be connected to W/E, if you can say? Nod once if I'm right, twice if I'm wrong.

 

[Tom Hyzy]

Mod furnace, I see one wire wrong causing this issue. Look at the manual again. I'd probably get in trouble if I told you what it was.

BaldLoonie, please ignore my last post, I don't want to get anyone in trouble. I see the manual diagram for the 'stat wiring in this situation, I think I can take it from here. Thank you again.

 

[pecmsg]

Mod furnace, I see one wire wrong causing this issue. Look at the manual again. I'd probably get in trouble if I told you what it was.

Watch out for the Mods, I hear there heartless!

 

[Tom Hyzy]

Mod furnace, I see one wire wrong causing this issue. Look at the manual again. I'd probably get in trouble if I told you what it was.

Success with white wire to "W" instead of "W2", program ran as expected. Thanks!

 

[BaldLoonie]

Yea, I'd hate to have to report my own post as DIY advice. But he got the problem solved.