Slant/Fin B-200A - Manual (Page 11)

Bobcat Model B-120A and B-200A 11
DIAGNOSTIC ERROR CODES
WARNING:
If an operational problem has occurred, the boiler will
shut off and show an “A”, “E” or “H” in the mode display,
along with an error code in the temperature display.
Do not attempt performing any service under these
conditions, but do note the mode and temperature dis-
play indication, in case the problem clears itself. An “A”
indication error can be cleared by pressing the reset
button once, which will allow re-try of operation. Do not
repeatedly press the reset button in this case, or if an
“E” or “H” indication error is displayed. Call a trained,
experienced service technician to troubleshoot and cor-
rect the problem. The Bobcat Installation and Operating
Instructions, publication B-40 contain a full troubleshoot-
ing section for this. Turn off all electric power ot the boil-
er before service.
A. LOCKOUT ERRORS:
Indicated by an “A” in the mode display. The reset
button must be pressed to clear the error and retry
operation. The temperature display shows the error
code.
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” button is not
required.
C. WARNING ERRORS:
Indicated by an “H” in the mode display. Operation
of the space heating mode is not affected, and the
warning is displayed intermittently. Operation of the
DHW mode is automatically restored, once the
condition is fixed. The temperature display shows
the error code. Pressing the “Reset” button is
not required.
ERROR
CODE
INDICATION
01
Ignition Failure - 3 unsuccessful ignition
attempts in a row
02
Flame Failure - 3 losses of flame signal
during one demand
03 Water High Limit Open
04, 05, 09,
10, 12, 13,
14, 15, 16,
18, 32
Control Failure
19, 20 Flame Detected at Wrong Time
33 Fan Failure - RPM Error
ERROR
CODE
INDICATION
01 Water Outlet Sensor Open
02 Water Inlet Sensor Open
03 Flue Gas Sensor Open
11 Water Outlet Sensor Shorted
12 Water Inlet Sensor Shorted
13 Flue Gas Sensor Shorted
19, 42,
45, 46,
47, 48
Control Failure
20 Flame Detected at Wrong Time
21 Polarity Error
22 Frequency Error
24 Earth Connection Faulty
30 Excess Flue Temperature
31 Low Water Cutoff Error
32 Excess Water Inlet Temperature
51 Reset Button Error
52 Boiler Model Selection Error
ERROR
CODE
INDICATION
04 Domestic Hot Water Tank Sensor Open
14 Domestic Hot Water Tank Sensor Shorted