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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 heat-
ing tank with the terminal at the end of this wire. If water stops,
try cleaning the probe. 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 terminals when water level is touching the probe tip, replace
the L.L.C. board.

1 . Defective water

inlet valve

2 . Probe limed up

3 . Non-grounded or

loose terminal
connections at
liquid level con-
trol board

POSSIBLE CAUSE

SOLUTION

1 . Thermostat

turned 

OFF

 (or

set too low)

Check thermostat to make sure the shaft is knob is rotated clock-
wise to the desired temperature.

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

o u t

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 termi-
nal. 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 connections
at terminals. Replace board.

2

Summary of Contents for WB-10 -12

Page 1: ...WATER BOILER WB 10 12 6913 West Acco Street Montebello California 90640 Tel 800 421 6150 Technical Support Tel 800 995 0417 Fax 323 837 2401 Revised7 04...

Page 2: ...omes wired for 208 or 220 volt single phase 3 wire plus ground see wiring diagram 5 To connect the water boiler for 120 volt operation A The facility will have two wires one WHITE neutral and the othe...

Page 3: ...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 TROUBLESH...

Page 4: ...ps at 240 volts 24 amps at 208 volts or 29 amps at 120 volts If you measure only 10 to 12 amps check the current to each element to identify the defective part b Ohmmeter or continuity test Disconnect...

Page 5: ...4 ILLUSTRATED PARTS LIST Water Boiler WB 10 12 B...

Page 6: ...PROBE WATER LEVEL SPACER 1 2 DIA ALUMINUM 8 32 TAP FITTING WATER INLET 1 4 FLARE TUBING ASSEMBLY 1 4 WATER INLET FITTING 1 4 x 3 8 FLARE BRASS ELBOW BUSHING 1 SNAP IN VALVE WATER INLET S 45 THERMOMETE...

Page 7: ...WATT 32 AMP 240 VOLT 8400 WATT 35 AMP L1 NEUTRAL L2 GROUND z 2 3 5 KW HEATING ELEMENTS INLET VALVE Rev 4 15 98 6 z z z z Water Boiler WB 10 12 120 VOLTS 2100 WATTS 17 5 AMPS 1 6 3 1 2 L PROBE ORANGE...

Page 8: ...ng and regular maintenance of this equipment 6 6 6 6 6 Dama Dama Dama Dama Damaged in transit ged in transit ged in transit ged in transit ged in transit Equipment damaged in transit is the responsibi...

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