20135737
26
GB
Installation
5.13.2 Fault diagnostics - lockouts
Tab. M
Key
Tab. N
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 opening fault or contact open of
the electric air damper opener, after 2 minutes from 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 push-button / Remote reset anomaly
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 a drop in air pressure after the pre-purging
was repeated due to a previous lack 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 for fault with the circuit within the 1st stage valve
control
RED, GREEN
blinking inverted
2.5
0.5
Lockout for fault with the circuit within the 2nd stage valve
control
RED
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
Lockout for maximum number of cycle repetitions due to
gas pressure switch intervention during flame operation
ORANGE
2.5
0.5
ON
OFF
Colour code
RED
ORANGE
GREEN
