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It's a Ruud Upflow furnace unit model UGDG-075AMGR. The original problem is that the indoor blower motor won't shut off.
So far I've:
- Replaced batteries in digital programmable thermostat.
- Verified that the fan ALWAYS ON function on the thermostat is NOT engaged
- Removed thermostat & fan still runs
- Made sure that the thermostat is telling the fan to shut off
- Replaced the limit switch with a new Protech 47-25349-02 replacement
Then I happened to see a small spark flash through the small vent hole in one of the relays. From what I can tell it's the relay that controls the fan. So I then bought the Protech Board since the relays aren't removeable.
The board in there now is a Honeywell ST9101A-1014. When I went to get another one I was told that Rheem has said that the Protech 62-24084-82 board is the one I should use to replace it. I bought the board but I want to make sure I hook up the wiring correct. The paperwork that came with the Protech board is basically useless.
I tried to attach the pics but the site is not wanting them. I do have the pics in a thread I posted up on a DIY forum here. http://www.diychatroom.com/f17/repla...inside-163364/
As I posted over there, after sitting here and really looking it all over I think these are the proper hookups from the old to the new board.
On the Honeywell I have wires connected at:
Heat
Cool
M1
M2
N - two of them
S
C
X
So this is what I'm thinking.
Honeywell Protech
Heat ----> Heat
Cool -----> Cool
M1 -----> M1
M2 -----> M2
N -----> Neutrals
S ----- SEC
C ------> COM
X ------> XMFR at the L1 location
So this is where I'm at right now. Any input is much appreciated.
So far I've:
- Replaced batteries in digital programmable thermostat.
- Verified that the fan ALWAYS ON function on the thermostat is NOT engaged
- Removed thermostat & fan still runs
- Made sure that the thermostat is telling the fan to shut off
- Replaced the limit switch with a new Protech 47-25349-02 replacement
Then I happened to see a small spark flash through the small vent hole in one of the relays. From what I can tell it's the relay that controls the fan. So I then bought the Protech Board since the relays aren't removeable.
The board in there now is a Honeywell ST9101A-1014. When I went to get another one I was told that Rheem has said that the Protech 62-24084-82 board is the one I should use to replace it. I bought the board but I want to make sure I hook up the wiring correct. The paperwork that came with the Protech board is basically useless.
I tried to attach the pics but the site is not wanting them. I do have the pics in a thread I posted up on a DIY forum here. http://www.diychatroom.com/f17/repla...inside-163364/
As I posted over there, after sitting here and really looking it all over I think these are the proper hookups from the old to the new board.
On the Honeywell I have wires connected at:
Heat
Cool
M1
M2
N - two of them
S
C
X
So this is what I'm thinking.
Honeywell Protech
Heat ----> Heat
Cool -----> Cool
M1 -----> M1
M2 -----> M2
N -----> Neutrals
S ----- SEC
C ------> COM
X ------> XMFR at the L1 location
So this is where I'm at right now. Any input is much appreciated.