54
TECHNICAL ASSISTANCE SERVICE
Error
code
via QAA
Diagnostic
info
Description of error
Type of fault
System action
Procedure
61
472
Room unit 1 error
Room unit waiting to
write to write-protected
parameter
Message
Check/replace room
unit, room temperature
sensor
62
438
Room unit 1 or timer
connection error
Connection error
Message
Check connection
to room unit/timer-
thermostat. Unit not
recognised
73
609
Solar collector sensor
error (if solar clip-in
option is installed -
accessory)
Valid temperature for so-
lar collector not available
Message
Check solar clip-in;
check/replace tempera-
ture sensor
77
156
Air pressure sensor
error (not used)
Short circuit in tempera-
ture sensor
Message
Check/replace air pres-
sure switch
77
157
Air pressure sensor
error (not used)
Pressure switch faulty
Message
Check/replace air pres-
sure switch
78
154
Water pressure sensor
error (not used)
Short circuit in pressure
switch
Message
Check/replace water
pressure switch
78
155
Water pressure sensor
error (not used)
Pressure switch faulty
Message
Check/replace water
pressure switch
78
510
Water pressure sensor
error (not used)
Water pressure too high
or too low, or reading not
plausible
Burner lockout
(permanent).
Lockout reset re-
quired
Check/replace water
pressure switch
78
511
Water pressure sensor
error (not used)
Reading not plausible
Safety shutdown
Check/replace water
pressure switch
81
518
LPB communication
error
LPB circuit short circuited
or not powered
Message
Check the LPB connec-
tion. Check the power
supply to the control
card
82
519
LPB address error
LPB address conflict
Message
Check the LPB connec-
tion
91
131
EEPROM data loss
Hardware fault
Burner lockout
(permanent).
Lockout reset re-
quired
Contact Technical Assi-
stance Service
91
258
EEPROM data loss
Data overflow caused
by power failure during
functioning
Burner lockout
(permanent).
Lockout reset re-
quired
Contact Technical Assi-
stance Service
91
268
EEPROM data loss
Hardware fault
Burner lockout
(permanent).
Lockout reset re-
quired
Contact Technical Assi-
stance Service
91
583
EEPROM data loss
EEPROM read/write test
error
Burner lockout
(permanent).
Lockout reset re-
quired
Contact Technical Assi-
stance Service
92
293
Electronic device
errors
Hardware error
Burner lockout
(permanent).
Lockout reset re-
quired
Contact Technical Assi-
stance Service