Curtis ALPHA 1X, Руководство по обслуживанию, Страница: 6 / 18

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POSSIBLE CAUSE SOLUTION
Water line turned off or water filter
clogged.
Coil on Water Inlet Valve has burnt
out.
Grounded Water Level Probe.
Defective Liquid Level Control (LLC)
board.
PROBLEM: Water does not flow into heating tank...
ANY SERVICE DONE ON THIS UNIT MUST BE PERFORMED BY A QUALIFIED SERVICE
TECHNICIAN.
TROUBLE SHOOTING
Disconnect the water line and test for water flow.
Turn machine off. Disconnect wires from water inlet coil
terminals and connect a power cord to the termi-
nals. Plug into a 115V outlet to verify that water flows
through when plugged in and stops when cord is
disconnected. If the valve does not respond to this test,
valve is defective. Replace valve or coil.
When water in the heating tank is below the probe tip, the
tank should be refilling. Pull wire off the probe terminal. If
water starts flowing into the tank, probe may be grounded.
Clean or replace probe.
To reduce the recurrence of grounding, tightly wrap probe
with Teflon tape to 1/8" from tip.
Remove ORANGE wire from probe terminal. Do not allow
wire to touch any electrical parts. Test voltage at terminals
of Water Inlet Coil. This should read 110 to 220 Volts. If
there is no voltage, go to LLC Board. Check board for loose
connections or a bad ground. If this is okay, board is
defective. Replace LLC Board.
Turn power off. Observe water level in tank. If water continues
to fill tank, the valve may need cleaning or you may have a
defective valve. Clean out or replace valve.
Pull wire off from probe terminal. Touch the metal side of
water tank with connector end of wire. If water stops flowing,
probe needs cleaning or replacement.
Liquid Level Control board must be securely grounded to it's
mounting bracket. Check for loose connections. Make sure
there is no voltage present at the inlet valve terminals. If
voltage is present, replace LLC board.
Defective Water Inlet Valve.
Lime deposits on Probe.
Loose or ungrounded Liquid Level
Control (LLC) board.
PROBLEM: Water is overflowing from the heating tank
POSSIBLE CAUSE SOLUTION