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Bobcat Models B-120A and B-200A
39
B. BLOCKING ERRORS: Indicated by an “E” in the mode display. Operation is automatically restored, once the
condition returns to normal or is fixed. The temperature display shows the error code. Pressing the “Reset”
b
utton is not required.
ERROR CODE INDICATION REMEDY
01
Water Outlet Sensor Open
Check wire harness connections going to the
sensor.
Replace the sensor.
02
Water Inlet Sensor Open
Check wire harness connections going to the
sensor.
Replace the sensor.
03
Flue Gas Sensor Open
Check wire harness connections going to the
sensor.
Replace the sensor.
11
Water Outlet Sensor Shorted Replace the sensor.
12
Water Inlet Sensor Shorted Replace the sensor.
13
Flue Gas Sensor Shorted Replace the sensor.
19, 42, 45,
46, 47, 48
Control Failure
Replace control board. Make sure the proper
boiler model selection and confirmation code is
entered. See Table 5 on page 32.
20
Flame Detected at Wrong Time
If a flame is still observed after a call for heat is
stopped, replace the gas valve, If the burner
seems to be shutting down properly, replace the
spark ignitor.
21
Polarity Error Reverse the hot and neutral power supply wires.
22
Frequency Error
Check power supply frequency to be 60 hz,
certain power supplies may not provide the
proper frequency
.
24
Earth Connection Faulty Check grounding of control and boiler chassis.
contin
ued on pa
g
e 39