3
Troubleshooting Guide
Step-by-step Electrical System Test
1. Close water inlet and outlet valves
2. Verify that the Power transformer is plugged
into a wall receptacle that has been tested to
verify that power is present. Verify timer module
power light is on (see Fig. 4).
If power is on go to next step, if not meter test.
3. Lift the hopper off the base -- does the power
light go out?
If light goes out replace the hopper on it's base
and go to next step, if not go to the meter test.
4. Lift hopper lid with your hand. Did the power
light go out?
If yes, then press the lid switch down and hold,
did the light come on?
If yes then while depressing the lid switch reach
under the deflection plate and lift the electronic
overflow switch, did the light go out?
If yes, then the lid and electronic overflow
switches are functioning properly and the 24 Volt
power source is applied to the timer module. Go
to the next step.
If not go to the Meter Test.
READ THE FOLLOWING INSTRUCTION STEPS
BEFORE CONTINUING THE TEST. THE TIMER
MODULE MAY BE DAMAGED IF NOT PERFORMED
CORRECTLY.
5. Turn the upper timer module control knob fully
clockwise and counter-clockwise to verify that the
knob comes to a stop at each end of the rotation.
Be careful not to force the knob beyond the stop.
If the knob rotates fully then the control knob is
broken and the timer module must be replaced.
Perform this test on the lower control knob.
Again DO NOT FORCE the knob.
Figure 4
Replace the timer if defective and go to the next
step.
6. Set the upper control knob to the "A" (19
seconds solenoid on time) position and the lower
control knob to the "normal" (11 seconds solenoid
off time) position. Verify that the timer module
power light is on. Watch the valve light. It
should come on for 11 seconds and off for an 19
seconds. During this test the solenoid valve will
click at the start and end of the duty cycle and
may hum while the valve light is on. This verifies
that the solenoid coil is not defective. If the
solenoid valve does not click on then vibrate
during the on portion of the duty cycle the
solenoid coil of the solenoid water valve must be
replaced. If the light cycles on and off, go to the
next step. If not the timer module is defective
and must be replaced.
7. Turn both the inlet and outlet water valves on
to verify that water is available and watch for
water flow. When the timer module valve light is
on and the solenoid coil is vibrating the water
should begin to flow. When the timer module
light is off the solenoid coil should stop vibrating
and the water should stop flowing. If the valve
comes on and off then the electrical system is
performing correctly. If the water fails to start or
stop flowing then the valve portion of the
solenoid water valve is defective and must be
replaced or repaired.
Restore the timer modules upper and lower
control knobs to their previous times or refer to
the owners manual for instruction.
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