Honeywell BCU 465 - Fault Signalling and Codes

BCU 460, BCU 465 · Edition 11.19 61
Fault signalling
10 Fault signalling
Fault message (blinking)
DISPLAY
Description
Burner 1 flame simulation
E 01
Flame simulation/Flame signal before ignition
No flame after safety time 1
E 02
No flame formation to end of 1
st
safety time
Flame failure during flame proving period1 t
FS1
E 03
Flame failure during burner 1 operation
E 04
Flame failure during operation
Too many remote resets
E 10
Remote reset activated >5× in 15min.
Too many restarts for burner 1
E 11
> 5 restarts in 15 minutes
Simultaneous activation (terminals 40 and 41)
E 21
“Maximum capacity” and “Ignition capacity” position feedback
from butterfly valve set simultaneously
Actuator wiring (terminals 65 – 67)
E 22
Faulty wiring of terminals 65 – 67
Actuator feedback (terminals 40, 41)
E 23
Maximum or ignition capacity is not constantly signalled back to
terminal40 or41
Simultaneous Min./Max. bus command
E 24
“Open actuator” and “Close actuator” bus signals set
simultaneously
Non-fail-safe parameters (NFS) inconsistent
E 30
NFS parameter range is inconsistent
Fail-safe parameters (FS) inconsistent
E 31
FS parameter range is inconsistent
Mains voltage
E 32
Operating voltage too high/low
Faulty parameterization
E 33
Parameter set contains illegal settings
Air valve control defective
E 34
Faulty actuation of the air valve. Voltage is applied to the outputs
at terminals 65–67 for the air valve.
Incompatible bus module
E 35
Bus module does not support the selected function.
Power module defective
E 36
Relay contact fault caused by defective relay contacts, EMC
influence, by applying voltage to outputs or by an incorrect load
module
Fuse defective
E 39
Device fuse F1 is defective
Inlet valve(s) leaking
E 40
Leak found on inlet valve
Outlet valve(s) leaking
E 41
Leak found on outlet valve
Pressure switch/gas valve wiring
E 44
Gas valve wiring
E 45
Reversed valve connection