× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: What is that in the coil? What do you think is killing them?
Posted to HVAC Forum on 9/5/2011 1 Reply

[...trimmed text...]

Voltage spikes are the reason. You get emf when the clutch engages which will spike the voltage. Some systems will use a diode protected relay to facilitate this, others a diode in the clutch circuit... Login to read more.

1 Replies Received (View Replies)