been using my block heater all winter, now it does not seem to be working... outlet and power cord have juice

what should i check ?

thanks
st


98' 24v 2500

 

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.

 

infidel,

tehcnically if you are using a digital volt meter and short the hot and neutral you'll get something like 0.3 ohms...not exactly zero...

 

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.

 

correct, if it actually reads zero then its open...which means its burnt out.

 

Bout $38 at Cummins, just installed a new one in my sons 94.

 

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

 

What's up Ricky, switching sides?