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10 Maintenance
1. Informationstaste Press
Further information is displayed.
See
Maintenance code table
Note
The maintenance message has not been activated by the setting
in the factory.
10.2.2 Maintenance code table
Servicing code
Maintenance description
1
Burner operating hours exceeded
2
Burner starts exceeded
3
Maintenance interval exceeded
10.2.3 Operating phases of the Control Centre LMS
The operating phases are displayed after the information key has been
pressed.
Phase number
Display
Operating state
Description of function
STY
Standby (no heat demands)
Burner on stand-by
THL1
Fan start-up
Self-test for burner start and fan start-up
TV
Pre-purging time
Pre-purging, fan deceleration time to starting load speed
TBRE
Waiting time
Internal safety tests
VDE
Ignition phase
Ignition and start of safety time for flame formation, ionisation
current build-up
TSA1
Safety time constant
Flame monitoring with ignition
TSA2
Safety time variable
Flame monitoring without ignition
TI
Interval time
Flame stabilisation
MOD
Modulating mode
Operating burner
THL2
Subsequent ventilation with last operating fan
speed
Fan continues to run
THL2A
Subsequent ventilation with pre-purging fan
speed
Fan continues to run
TNB
Burner shut-off delay
Permitted burner run-on time
TNN
Overrun time
Permitted fan run-on time
STV
Start prevention
No internal or external release exists (e.g. no water pressure,
lack of gas)
SAF
Safety switch-off
STOE
Fault position
THL1A
TW1
TW2
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The current fault mode is displayed.
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