AERCO ProtoNode FPC-N34 & FPC-N35 User Manual
APPENDIX H: BCM and BMM Fault Codes For Modulex E8 Controller
Page
96
of
108
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0107_0B
03/07/2017
Ph.: 800-526-0288
GF-150
Table H-2: BMM Fault Code Table
Code
Description
Effect
Correction
Reset
26
Fan speed out of
control: It doesn't
stop within 30
seconds after turned
OFF.
Ignition is inhibited.
Check fan wiring.
AUTOMATIC
27
Air flow failure during
ignition.
Restart pre-purge
timer. The failure
remains until we
have a successful
burner operation.
Check fan and wiring.
Check air proving switch
and wiring.
AUTOMATIC
28
Flue/Chimney
Obstruction
Ignition is inhibited.
Check flue/chimney
29
Water inside the
combustion
chamber.
Ignition is inhibited.
Check for water in the
exhaust manifold
30
Settings Corrupted
Ignition is inhibited.
Pump runs for 5 min
at max speed.
Re-program the settings.
Contact Factory
MANUAL - cycle
the power or
send reset
message.
32
Line voltage too low.
(<96 VAC)
Wait for proper line
voltage. (>102
VAC)
Check input voltage else
try another BMM.
AUTOMATIC
40
Low Water Flow.
Low water flow
switch activated.
Burners turned
OFF.
Check water flow or check
switch.
AUTOMATIC
Appendix H-3: BCM Fault Code Table
The table below lists the fault codes and troubleshooting tips associated with the BCM.
Table H-3: BCM Fault Code Table
Code
Description
Effect
Correction
Reset
17
Boiler Pipe is
frozen. FlowSensor
temp. is 36°F or
less.
Ignition is
inhibited.
Pump runs for
5 min at max
speed.
Carefully defrost boiler
AUTOMATIC -
when FlowSensor
is greater than
41°F.
