Block Heater tripping GFCI - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 01-04-2012, 12:25 PM Thread Starter Rookie
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Question Block Heater tripping GFCI

After I plug the block heater in after about 5min or so, the GFCI trips. Tried another outlet/circut and different cord, but same thing happens...Short in block heater? Anyone else had an issue with this?

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post #2 of 5 Old 01-04-2012, 12:44 PM
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I had same problem with a block heater in a 99 Blazer up in Alaska. The element got coolant inside and popped the GFCI. Replaced the heater and problem was solved. I did check my power cord first for obvious signs and then a continuity check.
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post #3 of 5 Old 01-04-2012, 12:52 PM
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It could be the plug on the cord, it could be the element. I really don't know of anyway to check them.

Last time I bought the block heater was like 45 dollars, the cord is another 20-30 bucks from the dealer.

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post #4 of 5 Old 01-29-2013, 10:12 AM
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I noticed my truck not heating up with the block heater this morning. My extension cord has a lighted end so I know when it has power...the GFI was tripped, and would not deliver power to the cord unless I unplugged the cord from the truck. It has been cold and raining the past two days, so I may not get a chance to look at it for a few days. How had is it to get the element or cord out for replacement?

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post #5 of 5 Old 01-29-2013, 11:20 AM
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yup mine does this too

2006 ford f350 xlt cclb
blue spring mod
6.4 banjo bolts
gogo direct cluth solenoid
Insight cts with pyro
str8 pipe , fuel pressure gauge
air raid cold air
zoodad mod
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sct x3 with running looney wild , spd early lock up
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block heater , breaker , gfci

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