CoilJet® CJ-125 Support
CoilJet Support & Troubleshooting
Thanks for visiting the CoilJet support section. Here you will find answers to the most common support questions our customers have. Utilize the tabs to find the appropriate selection for your needs.
- The coil cleaning solution tank is empty, and therefore not mixing any cleaner into the water spray. Check the tank to make sure it’s full.
- There is a blockage in the mixing tank. Check inside the tank to make sure there is nothing caught in the drain area. You can also remove the base to see of an obstruction exists in the drain lines.
- The mixing valve stem has been stripped. This effectively renders the mixing valve “stuck” in a single position – in this case at zero. Contact us for support and replacement of the valve.
- A caustic coil cleaner was used and the acid has eaten at the mixing valve. Contact us for support and replacement of the valve.
As a reminder, the CoilJet is designed for optimal use with alkaline coil cleaners. Caustic coils cleaners will degrade internal parts. If a caustic coil cleaner is required for use, make sure to remove all the cleaner after use and throughly flush the unit. Fill the cleaner tank with water, oipen the valve and empty the tank of water. If you have used a coil cleaner other than SpeedyFoam in your CoilJet please follow these instructions immediately after use.
For the first reason, make sure that the battery remains charged at all times, especially if being stored for extended periods of time. We recommend leaving the battery plugged into the charger. The charger is a specially designed trickle charger and will maintain a proper charge.
The second reason is that the charger is malfunctioning. This can present itself in a few ways which include a flashing red light on the charger or no light. A test of the charger with a voltmeter is the PRIMARY test, regardless of lights. A proper charger should read between 12-14 volts. Anything below that is and indication that the charger is broken. Contact is for a replacement or refer to the warranty section for guidelines on repair or replacement.
Check the battery for correct voltage. Open battery compartment, remove the battery and disconnect battery wires. Check the battery voltage with a volt meter. A fully charged battery should output between 11-14 volts. If it is under 11 volts the battery needs to be recharged. Click here for troubleshooting battery specific problems.
Check for blown fuse.. Your CoilJet includes a 15amp fuse located in the base of the unit. Under special conditions, this fuse may blow to protect other components. To locate the fuse remove the six screws on the bottom cover of the unit. Locate the yellow fuse holder and check its condition. Replacement of the fuse is with a standard in-line 15 amp fuse.
Check for loose or damaged wiring. In extreme cases wiring can become loose or damaged, either through shock/vibration or accidental chemical spills. With the base cover still off, check for this condition. If you find loose or damaged wiring, please contact us.
Check the battery charger. The battery charger should be producing between 12-14 volts. Plug the battery into a working wall socket. DO NOT PLUG INTO COILJET UNIT. If it is flashing red, the unit needs to be replaced. If the light is green, use a voltmeter to check the output. If it is not measuring between 12-14 volts, it needs to be replaced. Please contact us for replacement.
Charging the battery from an empty charge takes about 3.5 – 4 hours. The charger is a smart, trickle charger and therefore can be left plugged into the battery at all times when not in use. The light on charger has three states.
Red – Battery is charging
Green – Battery is full charged and trickle charging is occurring
Flashing Red – Indicates and issue with the charger
Clean nozzle orifice
Water/chemical is low
Add water and/or chemical
Air sucked into system
Air in pump (not properly primed)
Remove nozzle, prime pump
Vacuum lock (cap vent clogged)
Clean cap air vent
Water temp too high
Add cold water to reduce temp
Charge or replace battery
Check for leaks at spray gun and pump
Air in system
Re-prime the unit
Charge or replace battery
Battery wire(s) not connected
Check battery wires
Power switch off
Turn switch on
Thermal breaker tripped
Turn off, let unit cool
Unit in disuse for extended time
Check battery for proper voltage and amperage as listed on battery. If battery is ok, diaphragm may have dried up. Fill unit and let sit for 48 hours. If this does not rectify issue, contact factory.
Pressure needs to be relieved
Squeeze trigger and relieve pressure
Battery needs replacement
Check that battery is producing proper output voltage and amperage listed on battery.
If, after attempting these troubleshooting tips, you continue to have problems, please contact us.
Every CoilJet comes with a 1 year parts and labor warranty.
This unit has been carefully tested and inspected at the factory and is warranted to be free from defects in material or workmanship. The company will, under this warranty, repair or replace any parts which prove, upon examination, to be defective. This warranty is F.O.B. factory and is valid for one year from date of purchase by original purchaser.
This warranty does not include unusual wear, abuse, damage resulting from accident, or unreasonable use of the portable HVAC coil cleaner, including using unapproved chemicals or detergents. Any repair made by others automatically voids this warranty. For repairs or warranty information DO NOT contact the place of purchase. Contact SpeedClean directly.