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dumb question about block heater

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Old Feb 17, 2015 | 12:50 PM
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dumb question about block heater

Ok, is it possible to blow a fuze if the block heater is still plugged in when starting? Almost did this the other day and wondered if its possible to cause a short or something.

Thx
 
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Old Feb 17, 2015 | 01:09 PM
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Short answer - NO. But if there is anything ELSE wrong you can still blow a fuse. It won't be just because you have the block heater plugged it.
 
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Old Feb 17, 2015 | 06:54 PM
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Blow a fuse on the truck? Not a chance!

Tripping a breaker in your house breaker box? Only if there is a serious issue with the block heater!
 
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Old Feb 17, 2015 | 07:46 PM
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I start mine remotely and unplug just before I pull out.
 
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Old Feb 17, 2015 | 08:21 PM
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Originally Posted by xaviar
Ok, is it possible to blow a fuze if the block heater is still plugged in when starting? Almost did this the other day and wondered if its possible to cause a short or something.

Thx
I'm assuming you mean house breaker/fuse. I would check you extention cord for cracks/fraying. When the engine is just starting, it could be twisting enough to short out the block heater hot to neutral or ground.
 
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Old Feb 18, 2015 | 11:15 AM
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Only takes a small amount of moisture to trip a GFCI

Josh
 
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Old Feb 18, 2015 | 05:38 PM
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Some block heater manufacturers say to unplug before starting the engine. The flow of coolant can create small air bubbles near the heating element, shortening its life.
 
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