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Old 11-30-2012, 04:32 PM   #1
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TX_Arvee's Avatar
Join Date: May 2012
Location: Pearland, TX
Posts: 514
Thermostat Fuse - FYI

While diagnosing a problem with the location of my A/C-Heat thermostat, I was suprised to find a 5amp fuse on the power lead going to the thermostat.
It's one of the old school larger blade type. If you ever loose power to your thermostat, remember this thread.

If you are wondering why i had to move the thermostat, it was too close to the heat source behind the wall (the fridge). It was placed about 7" too closae to the hottest part of the fridge wall. It seems to be only a problem in the summer when the fridge is working the hardest...

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Old 11-30-2012, 04:45 PM   #2
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Join Date: Sep 2011
Location: King George
Posts: 2,397
I would think all of your 12VDC circuits will be protected by a fuse or an auto-reset circuit breaker.. It is neat to know when you find one that is half-way hidden somewhere however...

Roy Ken

Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
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Old 03-16-2014, 09:41 PM   #3
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Join Date: Oct 2013
Location: Western NY
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I lost power at the thermostat on first trip on our 2014 Greyhawk going to Florida 3/13, froze our butts off that nite , Had the thermostat off the wall , furnace covers off, tracing wires etc. Next day pulled the thermostat off the wall again and pulled all the wires behind the thermostat, what a pile of wires jammed in the wall and found the fused power lead with a blown fuse, why would any one put a fuse in a wall behind a thermostat and why did it blow, it's been working fine for the past 3 days ??
2014 Greyhawk 31SS
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