PROBLEM: WATER OVERFLOWING.
POSSIBLE CAUSE
SOLUTION
Turn power off and observe water level. If water continues to flow into the heating tank,
clean or replace leaky valve.
Disconnect wire from probe terminal. Touch the body of the heating tank with the terminal
at the end of this wire. If the flow of water stops, try cleaning the probe. The probe may
have to be replaced.
Liquid level control board must be securely grounded through the back of the board and
the mounting bracket. Check for loose connections at the terminals. Check for voltage
across the inlet valve terminals. If there is 110 to 120 volts present at the inlet valve termi
-
nals when water level is touching the probe tip, replace the L.L.C. board.
1. Defective water
inlet valve
2. Liquid level probe
limed up
3. Non-grounded or
loose terminal
connections at
liquid level con-
trol board
POSSIBLE CAUSE
SOLUTION
1. Thermostat is turned
OFF (or set too low)
Check the thermostat adjustment to make sure the knob is rotated clockwise to the desired
temperature setting.
PROBLEM: WATER DOES NOT REACH PROPER TEMPERATURE
POSSIBLE CAUSE
SOLUTION
PROBLEM: WATER WILL NOT REFILL
1. Water line closed or
clogged filter
2. Valve coil burned out
3. Grounded probe
4. Defective water level
control board
TROUBLE SHOOTING
Check the water system at your facility to make sure the line is open. Replace the water
filter.
Turn machine off. Disconnect wires from water inlet coil terminals and connect a power
cord to the terminals. Plug cord into a 120V outlet and verify if water flows when plugged
in and stops when power is disconnected. If valve fails this test, replace valve.
When the water level gets below the probe tip, water should automatically refill the unit. If
not, pull wire off the probe terminal. Water should now start flowing into the water boiler.
Disconnect wire from probe terminal. With a voltmeter, check voltage at the water inlet
coil terminals. This should read 110-120 volts. If no voltage is present, check liquid level
control (L.L.C.) board. Make sure the L.L.C. board is supplied by 120V across terminals
T2 & T3. The L.L.C. board is grounded to the body of the machine by contacting the
board to the mounting bracket. Make sure board is grounded here. Check for loose con
-
nections at terminals. Replace board.
SOLUTION
POSSIBLE CAUSE
PROBLEM: WATER OVERHEATS, ELEMENTS DO NOT SHUT OFF
Replace the thermostat. You can sometimes operate temporarily by turning the ther
-
mostat knob to off until the boiling stops.
1. Defective
thermostat
4
