CompAir CL25ss runs for a few seconds and then shuts off.

by Fred Stewart
(Ephrata, WA)

CompAir CL25ss Stationary Air Compressor

CompAir CL25ss Stationary Air Compressor

CompAir CL25ss Stationary Air Compressor

480 volt three phase with 120 volt control

Was running fine and then shut off.

Checked 2 amp fuse on 120 side of transformer and it had blown. Replaced and now compressor will run for two seconds (or ten depending on where you set the "Timing Relay Delay On'") and then shuts off.

It blew a second 2 amp fuse and so we put in a 5 amp to get an amp reading and it looks as though it is pulling about 2.75 amps.

Checked supply voltage and it is good at 480v. 120 voltage off the transformer is good as well.

Wiring Schematic / Parts List is very skimpy. Users manual as well is skimpy. Not a lot of specific info in the troubleshooting any help would be great.

Fred J
Lenroc Co.

Comments for CompAir CL25ss runs for a few seconds and then shuts off.

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Aug 12, 2015
Compair compressor problem solved
by: Bill

Thank YOU Fred, for taking the time to update us all.

Much obliged.

Bill

Aug 12, 2015
Update to CompAir issue
by: Fred J

Ok. bad pressure solenoid was causing the grief. Replaced and all is well.
Thanks for your help.
Fred J
Lenroc

Jul 20, 2015
Update: Tested MOV Trans Suppression
by: Fred Stewart

Ok so Diode = MOV (Metal Oxide Varistator), Yes?

I do have the MOV Transient Suppressor being fed by the 480-120 v transformer. It seems to test out fine.

So Any ideas past there?

Thanks Fred J

Jul 09, 2015
fuse
by: Doug in s.d.ca

The 120 probably feeds a rectifier, yes?

So, bad diode(s) or capacitors in that area could cause the high current.

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