AERCO Modulex E8 Controller (and BCM) For Modulex EXT Boilers - Manual (Page 107)

E8 Controller and BCM for Modulex EXT
Installation, Operation & Maintenance Manual
CHAPTER 10: E8, BCM, AND BMM FAULT CODES
OMM-0093_0A AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 107 of 108
GF-136-C Ph.: 800-526-0288 PRI: 06/24/2013
Table 10-4: BMM Fault Codes (Continued)
CODE DESCRIPTION EFFECT CORRECTION RESET
24
Fan speed out of
control: It doesn't
reach pre-purge
speed within 30
seconds.
Ignition retry
after 60 second
delay and failure
remains until we
have a
successful
burner
operation.
Check fan wiring.
AUTOMATIC/
MANUAL
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