12-Voltair 12V6CF - Manual (Page 13)

TROUBLESHOOTINg
mY 12-VOLTAIR nOT RUn
1. Check if the switch on the pressure switch is in the auto (down) position
2. Check the air pressure. If you have more than 120 PSI in the compressor, the compressor will not kick in
and run until the pressure has dropped below 120 PSI
Before proceeding with this troubleshooting guide, be sure to disconnect the wire on the right
side of the solenoid. This is the wire that goes to the inside of the motor.
3. Do you have a toggle switch? If not skip to 4.
- Check if the toggle switch is in the on position
- Check your wiring against the wire diagram on previous page
- Check with a volt meter that you have voltage on at least one side of the switch (10-14 VDC) when the
switch is in the off position
- Check to see if you have voltage on both sides of the switch when the switch is in the on position
4. Do you have a circuit breaker? If not skip to 5.
- Check to see if there is a reset on the circuit breaker
- Check to see if you have voltage on both sides of the circuit breaker (10-14 VDC)
5. Check to see if the solenoid is working
- Make sure the circuit breaker is engaged, the remote switch is on
- Make sure the switch is in the off position
- Put you hand on the top side of the solenoid with one hand and turn the switch on the pressure switch
on with the other hand. You should feel a click. If not you possibly have a bad solenoid. Double check
with the next step (Be sure the wire on the right side of the solenoid is disconnected)
- With a volt meter check the solenoid using the two different sceneries
Scenario Left Post Top Post Right Post
Circuit breaker on
Remote Switch on
Pressure switch off
10-14 VDC 0 VDC 0 VDC
Circuit breaker on
Remote Switch on
Pressure switch on
10-14 VDC 10-14 VDC 10-14 VDC
dIAGnOSIS
- If you don’t get voltage on the top post in scenario #2 you have a bad pressure switch
- If you don’t get voltage of the right post in scenario #2 you have a bad solenoid
6. Was the compressor running and just quit?
- If the motor overheated (surface temp over 190F) than the thermal protector will have shut the
system down until the temperature drops below 170F. This may take up to 30 minutes. WARNING:
This is an automatic reset thermal protector- If all switches are on, and the thermal protector resets it
will run without any warning. Never put hand in the box without first disconnecting the power.
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