AERCO XPC GATEWAY Communications - Manual (Page 190)

GATEWAY COMMUNICATIONS MANUAL
190
Table 13 Burner Management Module (BMM) Error Codes
CODE DESCRIPTION EFFECT CORRECTION RESET
1 High Limit (STB)
Thermostat activated All burners turned OFF
and Pump ON at
maximum speed. Check FlowSensor thermal connection to
boiler. MANUAL - push reset
switch when temperature
goes below limit.
2 Low Gas Pressure All burners turned OFF . Check gas pressure or gas pressure
switch. AUTOMATIC - when gas
pressure switch closes.
4 No flame detected at
burner start Burner control lockout. Check flame rod or combustion. MANUAL - push reset
switch or cycle power.
5 Flame loss during run. Ignition retry. Check combustion and wiring. MANUAL - push reset
switch or cycle power.
6 High outlet temperature.
FlowSensor temperature >
203°F. All burners turned OFF
and Pump ON at
maximum speed. Check Flow Sensor or system pump AUTOMATIC - when
FlowSensor < 176°F.
10 Internal Failure Ignition is inhibited. Contact Factory for new BCM. MANUAL - cycle the
power.
11 Flame signal detected
before ignition. Ignition is inhibited. Disconnect flame rod wire from BMM. If
problem goes away change flame rod
and/or wire. If problem does not go
away change BMM. MANUAL - push reset
switch or cycle power.
12 FlowSensor fault. All burners turned OFF. Check flow sensor or wiring. AUTOMATIC
13 Aux Sensor fault The boiler will operate
from the FlowSensor
without the AuxSensor. Check aux sensor or wiring. AUTOMATIC