For troubleshooting common issues, please refer to the list below. We also have a variety of Frequently Asked Questions (FAQ's) that offer more detailed support including:

Review our CoilJet Troubleshooting guide first

My CoilJet doesn't power on. What could be causing this?
My battery doesn't seem to be holding a charge. What could be the reason?
What is the best type of coil cleaner to use with the CoilJet?
CoilJet Warranty Information
See more

If you continue to have issue with you CoilJet, please contact us.

Problem	Probable Cause	Recommended Remedy
Inconsistent and/or erratic pressure	Nozzle worn Nozzle clogged Water/chemical is low Air sucked into system Air in pump (not properly primed) Vacuum lock (cap vent clogged) Water temp too high Low battery	Replace nozzle Clean nozzle orifice Add water and/or chemical Fill Tanks(s) Remove nozzle, prime pump Clean cap air vent Add cold water to reduce temp Charge or replace battery
Motor continues to run even though trigger is released	High pressure system or pump hydraulic circuit not watertight Air in system Tank(s) Empty	Check for leaks at spray gun and pump Re-prime the unit Fill tank(s)
Motor stops abruptly	Battery too low to operate Battery wire(s) not connected Power switch off Thermal breaker tripped	Charge or replace battery Check battery wires Turn switch on Turn off, let unit cool
Motor buzzes but fails to start or does not start at all	Problems with pump auto shut-off Unit in disuse for extended time Pressure needs to be relieved	Contact factory Contact factory Squeeze trigger and relieve pressure

If, after attempting these troubleshooting tips, you continue to have problems with your CoilJet, please contact us.

Useful Links
CoilJet Product Sheet (.pdf)
CoilJet Manual (.pdf)
Warranty Information