Compressor tries but fails to start? check your voltage under load

by Robert
(Ashton, MD , USA)

My old 120V heat pump heater was retired when the compressor failed engage after a number of tries. I decided to troubleshoot by connecting it through volt and amp monitoring. I found excessive voltage drop on compressor attempts. With a better outlet, able to handle the high compressor kick-on current without voltage drop, the compressor works fine, starts at first try.

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Heat Pump Troubleshooting Tips.