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Old 12-17-2007, 08:07 AM   #1
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Im on the road, our thermostats are dead and will not bring the heat on, also the refig the lights are not working?? We have electric heaters and our gen is working so we are ok.
I check the dc fuse pannel but all the fuses are ok, Is there possable another location that I could be over looking??
JIM
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Old 12-17-2007, 08:07 AM   #2
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Im on the road, our thermostats are dead and will not bring the heat on, also the refig the lights are not working?? We have electric heaters and our gen is working so we are ok.
I check the dc fuse pannel but all the fuses are ok, Is there possable another location that I could be over looking??
JIM
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Old 12-17-2007, 08:47 AM   #3
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Have you checked the batteries?
All the items you mentioned are 12 Volt and if your batteries are down they won't work.
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Old 12-17-2007, 08:55 AM   #4
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Check your grounds for 12v batts and the one for you converter or inverter to frame of chassis.
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Old 12-17-2007, 10:10 AM   #5
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Was the battery disconnect switch thrown by mistake?
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Old 12-17-2007, 11:08 AM   #6
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Cruzer:
Was the battery disconnect switch thrown by mistake? </div></BLOCKQUOTE>

This is a good one to check. Our disconnect switch is right inside the entry door and for some reason seems to jump in front of my/DW's foot when we're coming and going.
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Old 12-17-2007, 11:12 AM   #7
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As others have mentioned, it sounds like a 12V problem. Assuming you checked the battery switch as mentioned above, check the voltage on the house batteries. If it gets too low the refrigerator won't fire (and maybe your furnace).

If so you have an issue with the batteries or the charging circuits.
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Old 12-17-2007, 03:47 PM   #8
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I check switches and all that. found out that our refig is not working off of 110 nor is the hotwater working off 110 the refig lights are out and went out side and found a white wire hanging inside the outside compartment of refig??
will see if I can find were that goes to as it is dark and will check it in the morning
Thanks to all
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Old 12-17-2007, 05:04 PM   #9
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JimQ, I am not an expurt but I "think" the fridge has to have 12V to operate even on AC. I blew a 3amp 12V fuse on the control board and even though 120V was available, it would not operate without the 12V control power.

There are a couple of different 12V fuse panels on my coach. Make sure you have found all your fuses.

Are the lights, water pump, etc are operating properly?
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Old 12-17-2007, 05:39 PM   #10
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Jim,
12V, in a coach, can be very irritating. The previous posts contain good info. At this point, it may sound like a dumb task, but go look at your inverter. Make sure the inverter panel lights are on.

Consider starting at the source of the power. With a meter:
1. Check the coach batteries. 12.5 V?
2. If so, check the 12V power to the Refer. Ok?
3. If so, check the refer fuses. My Dometic has 4 fuses! Two in line and 2 on the control board.
4. If okay, check incoming power to the refer control board. 12V or more?

The thermostats could be a bit more difficult. I have yet to determine where the fuse is for my thermostats.

If the power source is okay (batteries) then trace the voltage to the appliance. I think 11.6 volts is the minimum to opperate most appliances.

Good luck,
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Old 12-18-2007, 05:05 AM   #11
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Are the other interior 12v lights working? If not, your problem is at the battery and/or charger. If yes, then your problem is in the 12v circuit that supplies 12v power to the fridge and water heater. Neither will work without 12v power - even in 120 VAC mode. Their circuit boards require 12v to operate and nothing works if the circuit board is not powered.
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Old 12-18-2007, 08:58 AM   #12
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Make sure the battery water levels are topped off. Check the voltage on your batteries. If its fallen below 12.6V, you are not getting anything out of your converter and the batteries are running down.

The converter should be putting out 13.2V minimum. Maybe it has a fuse in it, or its not working for some other reason.
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Old 12-19-2007, 10:09 AM   #13
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yep, found the promblem, it takes 12 volts to control board that runs the refig and the hotwater on 110, plus the relay to switch to gas.
Thanks to all and have a merry Christmas or what ever you celebratate
Jim
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