23
20146119
GB
Installation
5.13.2 Fault diagnostics - lockouts
Tab. I
Key to layout
Tab. J
Fault description
Reset button colour
Seconds
Colour code
Extraneous light (false flame signal)
GREEN, RED
blinking alternately
0.5
0.5
Gas pressure switch not closing fault or contact open of
the electric damper opener of the solenoid valve SM, 2
minutes after the heat request
ORANGE
blinking inverted
2.5
0.5
Electrical power voltage fault
ORANGE
slow blinking
2.5
2.5
Electrical power frequency fault
ORANGE
-
-
Flame control voltage fault
ORANGE, GREEN
fast blinking alternately
0.2
0.2
Reset button / Remote reset fault
GREEN, RED
fast blinking alternately
0.2
0.2
Lockout for no flame after Ts
RED
-
-
Lockout for extraneous light signal or for parasite flame
RED
blink
0.5
0.5
Lockout for maximum number of cycle repetitions (flame
loss during operation)
RED
Fast blinking
0.2
0.2
Lockout due to loss of air pressure or after repetition of the
pre-purging that occurred due to a previous loss of air, or
10 sec before the end of the pre-purging, or during the
safety time, or during normal operation
RED
Blink
0.5
2.5
Lockout for fan motor error
RED, ORANGE
blinking inverted
2.5
0.5
Lockout due to fault with the gas valve control circuit
RED, GREEN
blinking inverted
2.5
0.5
Lockout for eeprom
error
ORANGE, GREEN
blinking alternately
0.5
0.5
Lockout due to air pressure switch not closing after a heat
request or after a recycle due to flame loss during opera-
tion
RED, GREEN
slow blinking
2.5
2.5
Lockout due to air pressure switch already switched to
closing of the heat request thermostat or after a recycle
due to flame loss during operation
RED, ORANGE
slow blinking
2.5
2.5
ON
OFF
Colour code
RED
ORANGE
GREEN
