Thermostat change problem - http://www.hvacmechanic.com/ Forums
Original message
| tlarosa
 |  "Thermostat change problem"
, posted Wed 12 Nov 09:14:  
Replacing an american standard nonprogrammable digital (because the up button doesn't work) thermostat with a honeywell non-prog digital (RTH3100C)
Shut off 1 of the 2 breakers (1st mistake I think) to the air handler. House has 2 air handlers with breakers in different places. But the breaker I shut off cut power to the thermostat so I think I'm ok. And I didnt get shocked when I disconnected the wires.
Old thermostat has: G B R Y W X2 O (has F but no wire) all wire colors match initials (X2 is black) One wire not used brown i think.
New thermostat has: E Aux Y G O L R B C
Initially I hooked up:
E = X2
Aux = White
y=y
g=g
o=o
r=r
b=b
nothing on L or C. Turn breaker on no dice. Finally noticed in the manual that "If old thermostat had both O an B wires attach B wire to C terminal" So, I tried that. No dice.
Get pissed off...hook up old thermostat. Now IT doesnt get power at all. (no battery back up on old)
Now I know there are 2 breakers at the fuse box, neither was tripped I toggled both. Also, 2 switches on heat pump (look like breakers), neither was tripped I toggled both. And the pull out jumper in box by fan outside pulled out and put back.
I have an american standard electric only heat pump. Dont know if there is some kind of low voltage fuse/reset switch inside that I may have blown/tripped.
No clue where to go next...and help will be appreciated.
yes im an idiot...but I try.
[this message was edited by tlarosa on Wed 12 Nov 09:49] |
| Replies:
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| bama 101
|  "Re(1):Thermostat change problem"
, posted Wed 12 Nov 09:47
do you have a model number off of the back of the old stat
Help is just a question away.
Safety is up to you....
....THINK........
....Safety........
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| | tlarosa
| "Re(2):Thermostat change problem" , posted Wed 12 Nov 09:57
have the backing plate with me (at work) no model #
but this is the monster:
asystat 570
http://images.owneriq.net/download/images/2/25dca757-8d52-488f-8552-e88399bab0dc-000001.png
yes im an idiot...but I try.
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| | bama 101
| "Re(3):Thermostat change problem" , posted Wed 12 Nov 10:01
got to go to the doctor , ill reply when i get back
Help is just a question away.
Safety is up to you....
....THINK........
....Safety........
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