ALWAYS DISCONNECT POWER BEFORE WORKING WITH ANY ELECTRICAL EQUIPMENT
IF YOU NEED HELP AFTER GOING THROUGH THESE STEPS, CALL US FOR ADDITIONAL HELP.
COINS STICK OR ARE RETURNED
Remove and clean the coin mechanism. Clean it with a non-residue cleaner such as lacquer thinner or similar solvent. Make sure any metal shavings are wiped from the magnet. If coins are sticking at the magnet, turn the adjustment screw in ½ turn. Lubrication: No additional lubrication is needed if the mechanism is kept clean as explained above. The use of any type of oil, lubricating spray, or graphite is NOT recommended. Be sure the coin mechanism is installed correctly under the tab just below the coin channel to keep it in proper alignment.
BILL ACCEPTOR PROBLEMS
Except for this first step, cleaning should only be done with the machine unplugged. Poor acceptance may be due to dirty sensors. Cut a dollar-size piece of heavy paper--use the back page of a tablet. Dampen it with glass cleaner, and with power applied, attempt to run it through the bill path several times. Disconnect power and remove the lower housing. Spray glass cleaner on cotton swabs and clean the sensors. Be sure the acceptor is dry before power is reapplied. If these methods do not correct the problem, or the acceptor is not working at all, it will need to be sent in for repair. Instructional inserts can be found with the original paperwork. If yours is missing, call for another one.
DO NOT PLUG PORT 'D' ON THE VALVE. THE VALVE CANNOT OPEN IF THIS PORT IS PLUGGED.
SMALL WATER LEAKS
Check the control solenoid by removing the ¼” line from the body of the solenoid to the non-pressure side of the valve. If water runs from the solenoid body, it is leaking and needs to be replaced. The seat disc in the valve may be worn or sand may be lodged under the disc. Disassemble and clean the big valve. Repair part kits are available.
WATER RUNS FULL STREAM EVEN IF THE MACHINE IS OFF OR UNPLUGGED
Be sure that the solenoid ports are correct. Reversed ports will cause the valve to open when NOT energized. Note the numbers stamped into the solenoid body. Aquamatic and CLA valves: 1 = Down to the non-pressure (outlet) side of the big valve; 2 = Up to the top of the big valve. OCV valves: Ports are reversed. i.e.: 1- Up; 2 - Down.
A plugged inlet screen will cause increasingly slower shut-off time. The screen is part of the brass fitting that screws directly into the valve body--ahead of the control solenoid--on the inlet (pressure) end. Remove and clean the screen. Using air pressure, blow backwards through the solenoid and all ¼” water lines. Replace as necessary. If you are unfamiliar with the quick-disconnect lines, please call for instructions.
Shorted timer or coin switch. If so, there will always be power to the valve (terminals #6 and #7). Disconnect power. With an ohmmeter, isolate and test the coin switch. It will show open when the trip wire is up. A coin falling through makes momentary contact. If you do not have a meter, you should be able to hear and feel the switch click on and off as it is tripped manually. If the wire is stuck down, or a coin is stuck in the channel, readjust or replace as necessary. If the coin switch checks out OK but the valve opens when power is reconnected, the timer is shorted and must be replaced.
MACHINE WILL NOT COME ON – INTERMITTENT PROBLEMS
Be sure the machine is plugged in and has power. If you have intermittent problems, be sure that all connections are tight and making positive contact. This includes the 22ga multi-wire plugs.
The STOP switch may be open. It is a normally closed switch.
Newer units use a contact block. Jumper across terminals #1 and #2. If the machine operates, replace the contact block.
Older units: With the power off, bypass the switch by tying the yellow and white wires from the timer together. If the machine operates, replace the switch.
Verify that there is 120v from the timer to the control solenoid when energized. If so, disconnect power and ohm the solenoid coil. If an open circuit is found, it is not repairable and must be replaced.
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