Rolair starts laboring at 90psi

by Brent
(Kamloops BC Canada)

Hello, I have a rolair c5715k17-0088 1.5 hp electric twin tank comp. the motor and comp start to labor when reaching 100psi, opening the cold start air valve smoothens things out, close the valve and back to laboring. your thoughts please. thx, Brent

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Apr 22, 2016
Rolair labouring
by: Bill

Some compressor issues that could cause this include:

1) tank check valve fouled and not opening freely under pressure

2) high pressure side valve failing

3) change in power supply, either the use of a too-small extension cord or the run capacitor is failing

4) issues with the compressor motor

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