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Troubleshooting
Compressor
The compressor doesn't turn on.
•
o Try connecting the compressor to a 12v battery directly.
Take the red wire to the positive terminal and the black wire to the negative terminal.
Give us a call if the compressor doesn't run. If it does, go to the next step.
o Double check the wiring for the relay. Test the relay if needed
Make sure that pin 86 is connected to a good key-power source and ensure than pin 85 is
grounded properly. You can test the relay wiring by connecting a small wire from pin 30 and
jumping it over to 86. If the compressor runs when you do this, you need to check your key-
power source. It is not giving power to the relay.
o Make sure the fuse isn't blown
If the fuse is blown, this could be due to a short in your wiring. Before you put a new one in,
check and ensure your wire is not frayed or exposed anywhere.
The compressor doesn't fill the tank
•
o Make sure the drain cock isn't open
Refer to page 11. If the drain is open, the tank is not sealed and cannot pressurize.
o Make sure the valve isn't open or backward
If the valve is open, the air from the compressor is escaping through it constantly. If the valve
is backward, air will escape through it constantly.
o Check the compressor's air inlet (only applies if you have a 228H)
If the plug from the inlet was not removed, the compressor cannot suck in air. Remove the
filter and remove the plug.
Make sure to check that you removed the plug from the end of the compressor's leader hose.
If the plug is still present, the compressor will not be able to push air out of the hose.
The tank loses pressure after a few hours
•
o Spray each fitting and air line with soapy water or Windex
The liquid will bubble up anywhere a leak is present. Typically, fittings need to be tightened
further or more Teflon tape needs to be applied to the thread. If you have a leak from the air
line connections, re-cut the lines flush and re-seat them into the PTC fittings.
www.hornblasters.com
®
.
support@hornblasters.com
Page 12
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