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Weldon's avatar
Weldon
Explorer
Jun 02, 2013

Electrical or Air Cond. Problem?

Yesterday I decided to do some work on the 5er, having it parked at my residence. When I turned on the a/c the volt meter showed voltage around 105. Turned the a/c off and killed the power to the unit. Then checked the electrical connections for tightness...they were okay. I did discover the "dogbone", 50 amp to 30 amp I was using had one side which had been very hot and the cord felt hot. I replaced the "dogbone" the turned the power and a/c back on. The voltmeter showed 109, the a/c was runnning and sounded great. I stayed there and watched the voltmeter for about 10 minutes and all was well. I left the unit and when I returned, the a/c was barely running and the volt meter was below 100. I turned the a/c off and the voltage jumped back to 119 and what lights were on became much brighter. I am wondering if the problem could be the start capacitor and how does one check it.
Thanks for your thoughts!

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