AGENT86
Well-known member
I require some advice/help. My friend has a 2021 Keystone Montana 373RD 5th wheel. The bedroom ac unit will come on, just the fan. The compressor won't work. Also, the fan will not turn off. Even with the thermostat ( Airxcel 9430A340)turned off, the fan runs constant. The main ac unit has now begun running all the time, even with the thermostat turned off. The only difference is that the compressor is working BUT, the compressor also remains on all the time. The only way to shut the units down is at the breaker box.
While I was trying to see if I could shut the main unit down by raising the temperature setting on the thermostat (Airxcel9630A336) I observed a puff of gray smoke come out from the thermostat back. I could smell a burnt electrical odor. Upon removal of the back cover, I didn't see anything that looked burnt/bad. I get 13.6 volts on the supply (red) wire on the main thermostat. On the bedroom thermostat the power supply is not on the red wire, it's on the blue or yellow, I forget at this time.
I disconnected the green wires at the main thermostat but it made no difference. When I disconnected the red power wire the unit shut down, which is no indication of anything, really? So, without digging any deeper for now, replacing both thermostats seems to be the first course of action? Yes, no?
One other note. Last year when he bought the trailer the first week he used it there was a power loss issue that caused most of the outlets to not work. After diagnosing to the best of my ability, I determined the bathroom GFI outlet was defective. I replaced it with a high quality GFI and then, discovered a second defective GFI in the basement. I replaced it as well & everything worked as it should until, last month. When they arrived for a week, the refrigerator was out. It runs through a harness into the basement. I found some outlets inside that were dead, which once again turned out to be the fault of the basement GFI. It had tripped at some point. It would not reset. I installed another new GFI and it's been working fine since.
We've had a LOT of massive thunderstorms these past few months. I'm wondering whether close, or even direct lightning strikes are responsible for the GFI issues and possibly the AC issues? IDK. I do know that the original GFI outlets that came with the trailer are pure garbage. One final question: Can I replace these Airxcel digital thermostats with same brand analog thermostats?
ANY advice/help would be much appreciated!
While I was trying to see if I could shut the main unit down by raising the temperature setting on the thermostat (Airxcel9630A336) I observed a puff of gray smoke come out from the thermostat back. I could smell a burnt electrical odor. Upon removal of the back cover, I didn't see anything that looked burnt/bad. I get 13.6 volts on the supply (red) wire on the main thermostat. On the bedroom thermostat the power supply is not on the red wire, it's on the blue or yellow, I forget at this time.
I disconnected the green wires at the main thermostat but it made no difference. When I disconnected the red power wire the unit shut down, which is no indication of anything, really? So, without digging any deeper for now, replacing both thermostats seems to be the first course of action? Yes, no?
One other note. Last year when he bought the trailer the first week he used it there was a power loss issue that caused most of the outlets to not work. After diagnosing to the best of my ability, I determined the bathroom GFI outlet was defective. I replaced it with a high quality GFI and then, discovered a second defective GFI in the basement. I replaced it as well & everything worked as it should until, last month. When they arrived for a week, the refrigerator was out. It runs through a harness into the basement. I found some outlets inside that were dead, which once again turned out to be the fault of the basement GFI. It had tripped at some point. It would not reset. I installed another new GFI and it's been working fine since.
We've had a LOT of massive thunderstorms these past few months. I'm wondering whether close, or even direct lightning strikes are responsible for the GFI issues and possibly the AC issues? IDK. I do know that the original GFI outlets that came with the trailer are pure garbage. One final question: Can I replace these Airxcel digital thermostats with same brand analog thermostats?
ANY advice/help would be much appreciated!
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