I cant tell if my block heater is working or not. Are there any ways I can test it? I mean with a multimeter or something. Not just plugging it in for days. I swear I used to be able to hear my block heater humming. Not sure I can hear it anymore.


Thanks!

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The top of the engine should be warm within 2-3 hours with it plugged in. And in a quiet room you should be able to hear it heating the coolant in the block.

Or use a killowatt meter....that's what I'd use.

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While I haven't used mine yet a Kill A Watt meter indicates it is using 500 watts of power when plugged in.

I can also heat the current arc or spark when I initially plug it in.

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It could be checked with an Ohm Meter but just to see if it is an open circuit or not (a Battery Powered Test Light would do the same thing).

It could Simply be that the something has happened to Power Cord/corroded Block Connector or maybe it is even unplugged at the Block Connection.

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