664Y4000.A
EN • 40
E
ngl
is
h
F
R
A
n
ÇA
is
n
E
D
E
R
l
A
n
D
s
E
s
p
A
ñol
iT
A
l
iA
n
o
D
E
u
T
s
c
h
p
o
l
s
K
i
mcBA BlokING AND ERRoR coDES
codes
description of the fault
remedying the fault
No valid mains frequency detected
Check the network frequency
Invalid or conflicting cascade address
Check the cascade eddress
Internal error
If the problem persists after two RESET attempts,
replace the MCBA.
Mains frequency deviation > 1,5 Hz or processor oscillator
error
Check the network frequency
Air pressure switch opened during burner ON
Check the air pressure switch
Flame current lost during burner ON
Measure the ionisation current
Minimum gas pressure switch opened
during burner ON
Check the gas pressure switch
Drift of sensor NTC 1 or NTC 2
Check sensor NTC 1 and NTC 2
Crack of sensor NTC 1 or NTC 2
Check sensor NTC 1 and NTC 2
Stuck-at error of sensor NTC
Check sensor NTC 1 and NTC 2
Summary of Contents for Prestige 24 Excellence
Page 41: ...ML 1 664Y4000 A ...
