Honeywell BCU 460 Technical Information page 62

Fault signalling
BCU 460, BCU 465 · Edition 11.19
Fault message (blinking)
Safety interlock failure
Permanent remote reset
Timing cycle too short
Waiting for ignition position (LDS)
Incorrect voltage supply to terminal 6
Internal error
Internal error
Flame amplifier or fuses defective
Irregularities in the power supply
Internal error
Internal error
Internal error
No PCC, power module error
Internal error
emBoss
Minimum capacity not reached
Maximum capacity not reached
Ignition capacity not reached
Communication with bus module
Parameter chip card (PCC)
POC valve open
POC valve closed
Air monitor "no flow" state
Low air pressure
DISPLAY
Description
51
52
Remote reset input activated > 10 s
53 Minimum timing cycle not observed
Faulty feedback signal of the control element position for ignition
54
capacity
E 57
Flameless mode without HT signal
E 80
Flame amplifier error/Device error
E 89
Error in processing internal data
E 91
Check the wiring and fuses
Direct voltage is connected or signal inputs and L are connected
E 92
to different phases
E 94
Error at digital inputs
E 95
Error at digital outputs
E 96
Error when checking the SFR
E 97
Insert compatible PCC, rectify power module contact error
E 98
Error when writing to the EEProm
E 99
Shut-down without application error
E A
Position for minimum capacity has not been reached after 255 s
E A
Position for maximum capacity has not been reached after 255 s
E A
Position for ignition capacity has not been reached after 255 s
E E Bus module fault
E C C
Incorrect or defective PCC
E 1 No input signal for closed valve
E 8
Valve not open
Fault Air monitor "no flow" state check. The signal from the
E 0
pressure switches is received at terminal 36 or 37 before the air
actuator is opened.
E 1 Fault Air monitor operating check
62