User`s guide

48

alarm relay will be energized. Lockouts are non-volatile and require a manual reset. Warnings are
dynamic and will self-remove when the condition causing the warning no longer exists.
The message O2 FAULT eXX contains the error message causing the lockout or warning event. The
error message 'eXX' is described in the following table:
e-code VALUE DESCRIPTION
44 BAD VECTOR
Incorrect communications with O2 probe45 RETURN BOUNDS
46 BAD ERROR CODE
47 COMMUNICATION ERROR Check wire, routing and connections to O2 probe
48 LOW LEVEL O2 LIMIT
O2 level exceeded limits set in O2 setup menu
49 HIGH LEVEL O2 LIMIT
50 O2 LOW STACK TEMP LEVEL Flue temperature exceeded limits set in O2 setup
menu51 O2 HIGH STACK TEMP LEVEL
52 RESERVED
53 RESERVED
54
STACK TEMP PROBE
DISCONNECTED
Hardware fault in probe
55 STACK TEMP OVER RANGE
Temp probe has exceeded its maximum range, 900F
(482C)
56 STACK TEMP READ ERROR Hardware fault in probe
57 AMBIENT TEMP READ ERROR Hardware fault in probe
58 AMBIENT TEMP OVER LIMIT
Temperature in probe has exceeded 185F (85C)–
check fan
59 AMBIENT TEMP UNDER LIMIT Temperature in probe is lower than -13F (-25C)
60 CPU CRC ERROR
Hardware fault in probe61 CPU RAM ERROR
62 CPU SELF TEST
63 24 VOLT LOW FAULT
Voltage in probe not within 18-30 vdc limits
64 24 VOLT HIGH FAULT
65 12 VOLT OPEN FAULT
Voltage regulator in probe out of acceptable
tolerance
66 12_VOLT_LOW_FAULT
67 12 VOLT HIGH FAULT
68 UNEXPECTED CALIBRATION FAULT Illegal self-calibration perform
69 SENSOR O2 STUCK FAULT O2 sensor not responding properly
70 SENSOR CALIBRATION NEEDED O2 sensor subsystem cannot perform measurement
71 SENSOR HEATER SHORT FAULT
O2 heater fault
72 SENSOR HEATER OPEN FAULT
73 SENSOR PUMP SHORT FAULT
O2 pump fault
74 SENSOR PUMP OPEN FAULT
75 SENSOR CELL SHORT FAULT
O2 sensor fault
76 SENSOR CELL OPEN FAULT
77
SENSOR CONVERSION TIMEOUT
FAULT
O2 sensor taking too long to convert O2 level
78 SENSOR LOW VOLTAGE FAULT O2 voltage level too low
79 SENSOR TOO COLD FAULT
O2 sensor heater temperature out of tolerance
80 SENSOR TOO HOT FAULT
81 SENSOR AIR CALIBRATING Sensor calibration in progress
82 SENSOR HEATER CALIBRATING
Heater calibration in progress
83 SENSOR COMM BUSY
84 SENSOR COMM FAULT Hardware fault in probe
85 SENSOR WARMING_UP Sensor warming after power on
86 SENSOR IN STANDBY O2 probe forced to standby condition