Some tips for checking the block heater operation:<br><br>- first plugging it in, look for a spark at the male/female connecter. A good block heater will always spark. This spark is easier to see at dusk but if you are looking for it, you will see it during daylight.<br><br>-Check for continuity at the male ends. No continuity, then either the block heater or block heater cord is bad. Remove the cord at the heater to check each component, (cord/heater element).<br><br>Mixing the antifreese with distilled water will help to reduce calcium/impurity build-up in the whole cooling system. Use low silcate antifreeze.<br><br>Make sure the antifreese you use is also aluminum compatible as the Cummins has an aluminum oil/(antifreeze) cooler.<br><br>TBGH<br>

 

You should also hear a slight bubbling hissing sound about five seconds after you plug it in if you listen up front at the grille or around the right front tire. Mine even has a slight whine to it when working correctly. I use one of those extension cords with the little LED indicator light on the female end to make sure I have 110 volt power. What a concept huh?

 

I've never seen a spark from the connectors but I can hear it kick on after 5 or 6 seconds, kinda like a fizzing sound from it

 

When you plug it in have a bucket of water then dip it into the bucket when you plug it in you should feel a tingle thru your body [undecided] <br><br>Or get a block heater tester these work better then a bucket of water ;D<br><br>http://plugalive.freeservers.com/<br><br>.

 

LOL Pappy........ do you also make your toast in the bathtub?

 

I would think that the toast would be soggy then..............