I have a question about contactors. I’ve been on a service call before where I found a bad three-pole, 30-amp contactor. The contacts were pitted.
I did not have a 30-amp, three-pole contactor on the van but I did have a 50-amp. So I installed it. I had the contactor wired right, so I turned it on. When I turned it on, the contactor started to chatter. I hurried to turn it back off. I then disconnected the coil leads to test for low voltage. When I did, I had 24 volts (perfect).