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Old 04-19-2012, 07:20 PM   #16
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AC blows hot air


This probably sounds dumb, but I can't find a c wire. Looking at the schematics for the thermostat there is one that is a b/c. Could that be the same? If it is I have no 24 volts between c and o.
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Old 04-19-2012, 08:26 PM   #17
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AC blows hot air


that is the same......... SO, you need to find the break in the O wire or if you have an extra wire in the loom you could switch wires both inside and outside and see if that fixes your problem.
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Old 04-22-2012, 05:50 PM   #18
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AC blows hot air


I switched the o wire out, black for orange, but I still didn't have voltage.
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Old 04-22-2012, 06:00 PM   #19
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AC blows hot air


living Winnipeg I hardly ever see a heat pump.... wish i could help.... I do agree though it apears the reversing valve has either got power when it should not ..does not have power when it should or its defective..
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Old 04-22-2012, 06:10 PM   #20
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without voltage the RV cant switch to cooling.
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Old 04-22-2012, 06:15 PM   #21
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without voltage the RV cant switch to cooling.
well then it should be easy.... either a broken wire or stat no good or stat wired wrong...blown fuse...wires to rv broken .....
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Old 04-22-2012, 06:16 PM   #22
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well then it should be easy.... either a broken wire or stat no good or stat wired wrong...blown fuse...wires to rv broken .....
yes, it should be easy, but the op may not understand that and may need to call a pro.
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Old 04-22-2012, 06:18 PM   #23
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AC blows hot air


I agree sometimes more harm than good can be done.....
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Old 04-22-2012, 06:44 PM   #24
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AC blows hot air


Good chance the RV is stuck in the heating position. And that its not a voltage problem at all.
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Old 04-22-2012, 06:46 PM   #25
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Good chance the RV is stuck in the heating position. And that its not a voltage problem at all.
hhmmmmm.... i am learning as well ... heat pumps are scarce here...
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Old 04-22-2012, 07:03 PM   #26
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Good chance the RV is stuck in the heating position. And that its not a voltage problem at all.
The OP stated there was no voltage between O and B/C in an earlier post.
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Old 04-22-2012, 07:48 PM   #27
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The OP stated there was no voltage between O and B/C in an earlier post.
In post #9 he says there is.
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Old 04-22-2012, 08:01 PM   #28
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Yes, that is when he checked at the indoor unit. At the outdoor unit he stated there was no voltage.
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Old 04-22-2012, 08:09 PM   #29
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Yes, that is when he checked at the indoor unit. At the outdoor unit he stated there was no voltage.
Missed that.
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Old 04-22-2012, 08:40 PM   #30
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AC blows hot air


OP. Jumper the R/red wire and the O at the outdoor unit, and see if it gos to cool mode then.
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