Code
Display text
Explanation
5
Generator stop
The appliance has stopped.
6
Pump Post Run
The pump is active after the appliance stopped.
8
Controlled Stop
The appliance does not start because the starting conditions are not
met.
9
Blocking Mode
A blocking mode is active.
10
Locking Mode
A locking mode is active.
11
Load test min
Low load test mode for central heating is active.
12
Load test CH max
Full load test mode for central heating is active.
13
Load test DHW max
Full load test mode for domestic hot water is active.
15
Manual Heat Demand
Manual heat demand for central heating is active.
16
Frost Protection
Frost protection mode is active.
19
Reset In Progress
The appliance resets.
21
Halted
The appliance has stopped. It must be reset manually.
23
Factory test
The factory test mode is active.
200
Device Mode
The service tool interface controls the functions of the appliance.
254
Unknown
The actual state of the appliance is undefined.
Tab.125 AM014 - Sub status
Code
Display text
Explanation
0
Standby
The appliance waits for a process or an action.
1
AntiCycling
The appliance waits to restart, because there were too many consec
utive heat demands (anti-short cycle).
4
WaitingForStartCond.
The appliance waits for the temperature to meet the start conditions.
10
CloseExtGasValve
An external gas valve is opened, when this option is connected to the
appliance. An external option board must be connected to drive the
valve.
12
CloseFlueGasValve
The flue gas valve opens.
13
FanToPrePurge
The fan runs faster to pre-purge.
14
WaitForReleaseSignal
The appliance waits for the release input to close.
15
BurnerOnCommandToSu
A burner start command is sent to the safety core.
17
PreIgnition
Ignition starts before the gas valve opens.
18
Ignition
Ignition is active.
19
FlameCheck
The flame detection is active after the ignition.
20
Interpurge
The fan runs to purge the heat exchanger after a failed ignition.
30
Normal Int.Setpoint
The appliance operates to reach the desired value.
31
Limited Int.Setpoint
The appliance operates to reach the reduced internal desired value.
32
NormalPowerControl
The appliance operates on the desired power level.
33
GradLevel1PowerCtrl
The modulation is stopped due to a faster heat exchanger tempera
ture change than gradient level 1.
34
GradLevel2PowerCtrl
The modulation is set to low load due to a faster heat exchanger tem
perature change than gradient level 2.
35
GradLevel3PowerCtrl
The appliance is in blocking mode due to a faster heat exchanger
temperature change than gradient level 1.
36
ProtectFlamePwrCtrl
The burner power is increased due to a low ionisation signal.
37
StabilizationTime
The appliance is in stabilisation time. Temperatures should stabilise
and temperature protections are switched off.
38
ColdStart
The appliance runs at start load to prevent cold start noise.
39
ChResume
The appliance resumes central heating after a domestic hot water in
terruption.
40
SuRemoveBurner
Burner demand is removed from safety core.
41
FanToPostPurge
The fan runs to purge the heat exchanger after the appliance stop
ped.
44
StopFan
The fan has stopped.
10 Settings
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C 340 / C 640
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