Mikesbucketlistmack Posted September 21, 2016 Share Posted September 21, 2016 On my 1980 R611ST, it looks like someone disconnected the engine block heater wires. I want to reconnect them but which terminals do the black (hot) and white (neutral) AC wires go to ? It looks like the green (ground) gets connected to the bottom screw. And what gauge wire should I use ? Thanks, guys ! Quote Link to comment Share on other sites More sharing options...
masterwelder Posted September 21, 2016 Share Posted September 21, 2016 I don't think it matters what wires go to what terminals. It's a coil inside looking for ground to resist against, generate heat and in turn heat up your coolant. Quote Link to comment Share on other sites More sharing options...
eddeere Posted September 22, 2016 Share Posted September 22, 2016 You might want to check the heater with an ohm meter to see if it is good. Like Masterwelder said it is an AC coil terminals should not mater. Green should be ground. 1 Quote Link to comment Share on other sites More sharing options...
Mikesbucketlistmack Posted September 23, 2016 Author Share Posted September 23, 2016 What exactly am I looking for with the ohmmeter and to which terminals do I attach the leads ? Quote Link to comment Share on other sites More sharing options...
gearhead204 Posted September 23, 2016 Share Posted September 23, 2016 the two terminals with the Philips screw heads you should have continuity thru, if no continuity the heater element has failed. 1 Quote Link to comment Share on other sites More sharing options...
Mikesbucketlistmack Posted September 23, 2016 Author Share Posted September 23, 2016 Okay, thanks. That's what i was thinking, too. I'm going to try that and let you know. Quote Link to comment Share on other sites More sharing options...
Maddog13407 Posted September 23, 2016 Share Posted September 23, 2016 yup, most likely failed, that's why someone unhooked it. doesn't matter which goes to which. new elements are available. could be opening a can of worms replacing it tho and getting it to not leak. Quote Link to comment Share on other sites More sharing options...
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