69 … 96
68 … 96
Printed in Germany • Edition 04.18 • Nr. 271 958
Error overview
MPA 41xx PF
Errors from the application (from 0xA0)
Error
ID
Internal
error
Error description
0xA6
EXTRANEOUS LIGHT UPON STARTUP
Possible cause of the error:
Earth connection to an ionisation electrode
Gas ows out and is burned for example by neighbouring burners
Defective UV tube
Connected ame detector (UV, ...) detects light or is defective
0xA7
NO FLAME DURING SAFETY PERIOD
Additional information byte 0: Bit0=Flame on FLW1
Additional information byte 1: Flame quality for FLW1
Possible cause of the error:
Ionisation electrode incorrectly set
Ignition electrodes incorrectly set
Insulated lines of the ignition electrodes or defective ionisation electrode
Gas valves do not open the gas ow
Connected ame detector (UV, ...) does not detect light or is defective
Lines of mains connection on the MPA exchanged ("N" and "L1")
0xA8
FLAME FAILURE DURING OPERATION
Additional information byte 0: Bit0=Flame on FLW1
Additional information byte 1: Flame quality for FLW1
Possible cause of the error:
Flame body defective
Connected ame detector (UV, ...) does not detect light or is defective
0xA9
FLAME FAILURE DURING STABILIZATION
Additional information byte 0: Bit0=Flame on FLW1
Additional information byte 1: Flame quality for FLW1
0xAA
AIR PRESSURE SWITCH IS NOT IN "OFF" POSITION
Possible cause of the error:
The air pressure switch is defective
There is air pressure during the idle state control, for example due to an air ow from the
exhaust line,...
The threshold value of the air pressure switch is set incorrectly
0xAB AIR PRESSURE SWITCH FAILURE
0xAC x INTERNAL ERROR: FEEDBACK IGNITION
0xAD LACK OF GAS PRESSURE SWITCH MIN.
0xAE–
0xAF
reserved
0xB0 x
0xB1-
0xB5
reserved
0xB6 PROOF OF CLOSURE
0xB7–B9 reserved
0xBA
EXTRANEOUS LIGHT UPON STARTUP
External light > 1 min. after heat request
0xBB -
0xD1
reserved
0xD2
REMONTE RESET DENIED
The MPA must be unlocked by means of the unlock key of the display
0xD3 HT SIGNAL OUT DI
0xD4 x INTERNAL ERROR: FEEDBACK SR OUTPUT
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