Operation CHARM: Car repair manuals for everyone.

Engine Block Heater

ENGINE BLOCK HEATER





If heater unit does not operate, possible causes can be either the power cord or the heater element. Test the power cord for continuity with a 110 volt voltmeter or 110-volt test light. Test heater element continuity with an ohmmeter or a 12-volt test light.





CAUTION: To prevent damage, the power cord must be secured in its retainer clips and away from any components that may cause abrasion or damage, such as linkages, exhaust components, etc.