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T-Product · BCU 465 · 2006 April
Program Status and Fault Indication
Program status
DISPLAY
Fault (flashing)
Power on/Standby
00
Purge
P0
Self check time
1
Flame signal at start-up
Safety period on start-up
2
Flame failure during start-up
Proving period
3
Flame failure during proving period
Normal operation
4
Flame loss during operation
10
Too many romote resets
Air valve operation main burner
A
Cooling
A0
1
Proof-of-closure-switch (POC) Fault (Startup)
X
POC operation fault in postion X
High temperature mode
. .
51
Fuse F1 Fault or no input from limits circuit
52
Permanent remote reset
53
Pulse firing cycle too short
In manual mode, two dots blink simutaneously in program status
01
–
04
.
Operation
