99 power stroke I bought used almost a year ago. The block heater now trips the breaker when plugging it in. I tried to plug the truck in & then the cord to the outlet, still no luck.. Also tried differnt outlets & switched drop cords & outlets , still w/ no luck.

I used the search, but only found some replacing the plug on the truck. Where is the heater on the truck?
In the search some say the cord unplugs at the heater to test the cord for shorts.....
Any ideas????


Thanks to all!!!!!!

 

My 02 plugs in right above the oil filter.
You could try and disconnect the orange cord next to the filter, let it hang loose and then try connecting the plug at the bumper to your supply. If it still trips the breaker, it's your cord. If not, you probably have a short in the heater itself.

 

I had a mouse eat the wire to the block heater ... tripped the circuit. replaced the wire ... taadah. It should be right at the filter head for disconnect. You might as well buy the whole repair kit, if you need the new element, its there.

 

From some other post a new cord was around 15-20 bucks at international, so you might check with them first, online was around 50 and dealer was over a 100 if I am remembering correct. International number for the cord: ZBL3600015. If you have access to an Ohm meter the plug assy, should be 15 ohms or so.

 

I don't know what is going on???? I unplugged it at the heater & plug into the outlet, but didn't trip the breaker.. Replugged it into the heater & back into the outlet & it works???? tried it several times -works every time.. I check the cord along the way thru the engine compartment & it looks good..

Thanks for the help/ideas..
great help as always


Thank You!!!

 

Was the plug wet or something, giving a path for the electrons to flow?

 

If I was you I would put a new cord in there. Those cords can look good but that is decieving. The cost is neglidgable

 

Keep a close eye on that electric cord. Overtime the engine vibration could breakdown the cord insulation at a certain point near the engine. The orange rubberized coating is supposed to dampen out vibration and help prevent the cord from being shaken apart. As Kwik said it could have been simple moisture
tripping a gfi circuit. Might want to seal with RTV at the heater block.That short may come back.

 

I dried the truck plug several times... I checked 3 local ford dealers for a cord today & none stocked it.. A guy from work said NAPA stocks the cords... Your are right I should buy one & replace it, truck has 90,000 on it now & hoping for many more miles.


Thanks again!!!

 

If you are using an extention cord you may also want to use a heavier gauge extention cord.

 

I would make 100% sure everything is right. On both the truck side and the house side. I just lost my truck to a fire caused by the engine block heater or cord....

Some advice. Check the outlet. Use the shortest extension cord necessary. Make sure it is heavy duty for outdoor uses. Check the Block Heater Cord.

This is just my theory, but I wasn't very carefull about tucking the cord away after unplugging. I am sure that it must have been blown around, chaffed on the bumper etc. enough after 105,000 miles to possibly over heat etc. and start the fire. Now I am having to deal with insurance co's and shopping for a new truck. I really wanted another 70 - 100 K from this truck. It was in perfect shape.

What do they say, an ounce of pervention..... Good luck!

 

Does this look familiar?

 

...oops that would be prevention

 

Hey PSNut does what look familiar?

 

ooops! forgot the link: https://www.ford-trucks.com/forums/s...d.php?t=435419