Block Heater
#2
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The problem is most often the plug. Remove the cord by unscrewing the knurled nut on the block. Short the two flat plug prongs together with a test lead or wire and measure the resistance at the other end, it should be zero. Jiggle the plug around to make sure you don't have an intermittent open wire. If the cord reads good then the problem is the heater element.
#4
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Join Date: Feb 2002
Location: Sturbridge, Taxachusetts
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Another possibility is that its flat out dead; burnt out. It's nothing more than a thin wire that gets red hot, and like the element on an electric stove, it can burn out. I would recommend unscrewing the connector at the base of the heater where it goes in the block, pull the plug straight out and then probe the pins with a multimeter. You should get a very low resistance reading. If you get a high reading or no reading at all, the heater is toast.
#7
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Join Date: Sep 2003
Location: Cynthiana KY
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I agree with Joel go though Cummins, I replaced mine last winter here is how I did mine:
http://www.geocities.com/palmerlives...ockHeater.html
http://www.geocities.com/palmerlives...ockHeater.html
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