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Old 05-07-2016, 03:24 PM   #1
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Brand: Thor Motor Coach
State: Nevada
Posts: 3
THOR #4221
Loss of power

I seem to have lost 12 volt power to my interior lights and my fuse panel. When I try to use power from my batteries I do have lower power to my storage compartments but no power in the coach that runs the water pump, slides and interior lights. When I am plugged in to shore power, I have 13.7 volts coming from my converter but not going to my house batteries. I called thor and they told me I have a blown fuse by the batteries or up front in the control panel. There does not seem to be a blown fuse in these areas. Anyone have any suggestions? Missed our trip this week because of this issue😩
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Old 05-07-2016, 04:01 PM   #2
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Brand: Keystone
Model: Cougar 30 RLS 5th wheel
State: Colorado
Posts: 282
THOR #2204
What you may be looking for is a blown relay. On my Hurricane 34E
down where the batteries are on the wall of the compartment is a
relay that if blown will have a yellow arm showing. If this is so then
all you need to do is reset this relay. Worth looking at this.
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Old 05-07-2016, 04:19 PM   #3
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Brand: Thor Motor Coach
Model: Four Winds 28A Class C
State: Vermont
Posts: 267
THOR #4117
It might help if you posted what RV you have.

In my 10 year old 28A MH there is a circuit breaker near the battery disconnect solenoid and converter, under the bed. It failed a few years ago and I replaced it.

Other RVs may be entirely different.

It may be better just to follow the wire from the converter to the battery and see where the power ends. A test light or a voltmeter would be a big help.
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Old 05-07-2016, 04:53 PM   #4
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Brand: Thor Motor Coach
State: Nevada
Posts: 3
THOR #4221
Miramar

Sorry, we have a 2014 32' miramar
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Old 05-08-2016, 04:11 PM   #5
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Brand: Thor Motor Coach
State: Pennsylvania
Posts: 7
THOR #3742
Could be something simple like battery disconnect switch. Make sure it is switched to use.
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Old 05-08-2016, 05:08 PM   #6
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Brand: Thor Motor Coach
State: Nevada
Posts: 3
THOR #4221
The in use switch is on but we are still Looking for the red relay switch that turns to yellow? on our 32 miramar or a trip switch under the hood?. Any suggestions? All fuses by the battery are good.
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Old 05-24-2016, 02:51 AM   #7
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,144
THOR #2631
Loss of Power

Hi, not sure if you found your problem but if the Mirinmar coach uses a BCC cabinet like my ACE 30.1 there is a 50 amp resettable mini breaker located on the circuit board inside the BCC cabinet located (on my ACE 30.1) in the front engine bay. It is awkward to get to but possibly this is your issue. There is a web posted link that refers to this mini breaker on top of page 100.
https://www.google.ca/url?sa=t&rct=j...SyXaHv46FR-9_Q

If all other switches and latching relays are working, this might be your problem. Hope that helps
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Old 05-24-2016, 11:46 AM   #8
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Brand: Entegra
Model: Accolade 37TS
State: Virginia
Posts: 4,676
THOR #1469
In the Challenger the 50 amp breaker is located in the battery compartment. If you look at the attached photo the orange cable on the left is attached to the upper left terminal on the breaker.

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Old 05-24-2016, 01:19 PM   #9
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State: Alaska
Posts: 87
THOR #3954
We had the same issue with our 2016 Miramar 34.3. I pushed in the yellow arm and all was well again.
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