Repair manual

STEP
TEST
RESULT
REMEDY
4. Go to Step #5 Are the following connections
made correctly?
Yes
A) COM input on board to
boiler ground
No Correct probe wiring as
required (see Figure 1)
B) LO input on board to long
length "LO" probe
C) HI input on board to short
"HI" probe
Yes Go to Step #6 5. Temporarily disconnect the
wire from the HTR terminal so
that the heat source will not
operate. Is the heat source
off?
No Check heat source and wir
ing in cooker
Yes Go to Step #7 6. With HTR still disconnected,
disconnect the LOW wire at
the LOW terminal of the con
trol board. Measure the AC
line voltage between the HTR
and L2 terminals on the con
trol board. Is the voltage
0 vac? NOTE: Digital meters
may read a few volts due to
their high input impedance;
this should be considered as
0 vac.
No Replace water level con
trol P/N 23198
Yes Reconnect HTR & LOW wires
and go to Step #8
7. Short the LOW and COM termi
nals on the control board.
Does the AC line voltage
between -the HTR and L2 termi
nals now read 120 vac (line
voltage)?
No Replace water level con
trol P/N 23198
Yes
Go to Step #9
8. Disconnect the wires from the
HI and COM terminals on the
control board and short the
HI & COM terminals together.
Measure the AC line voltage
between the WF and L2 termi
nals. Is the voltage 0 vac?
No Replace water level con
trol P/N 23198