Hi I have 2 450C compressors for around 2 years that I got from HB and they have been great until yesterday. They run a ten gallon tank and I have a viair 40A relay for each compressor and I use a 150PSI shutoff switch. Yesterday, it was around 25 degrees and they all of a sudden shut off at 30PSI. So I got home and checked the fuses, shut off switch and even the power wire after the shutoff switch which had juice. Everything checked out fine as those go. So I unpluged both compressors and took them out and hooked each one up to a 12v power source and they did not run. They just hummed. I took the air filter off and spun the crank on both of them and they turned just fine. I just do not understand why they both quit at the same time. Can you please help? I literally just got another P-5 the SAME day this happened and I am just dying to go play.
Thank you,
Isaiah