Vaillant ecoTEC exclusive 832 Service Manual download pdf (Page 41)

41Installation and maintenance instructions ecoTEC exclusive 0020017768_05

Troubleshooting 9

9 Troubleshooting

Note!

If you wish to contact the Vaillant Service Team,

please refer to the error code displayed (F.xx)

and the appliance status (S.xx) if possible.

9.1 Diagnostics

9.1.1 Status codes

The status codes that you can see on the display

provides information about the current operating

condition of the appliance.

Fig. 9.1 Display of status codes

The display of the status codes can be viewed as follows:

• Press the "i" button.

The display shows the status code, e.g. S.4 for

"Burner mode - Heating".

The display of the status codes can be ended as follows:

• Press the "i" button or

• Do not press any button for about 4 minutes.

The current filling pressure in the heating system

appears in the display again.

Display Meaning

Heating mode

S.0 No heat required

S.1 Fan start

S.2 Water pump flow

S.3 Ignition

S.4 Burner mode

S.5 Fan and water pump return water

S.6 Fan return flow

S.7 Water pump return water

S.8 Burner lock after heating mode

Hot water function

S.10 Hot water switch on

S.11 Fan start

S.13 Ignition

S.14 Burner mode

S.15 Fan and water pump return water

S.16 Fan return flow

S.17 Water pump return water

Storage tank charging/heat retention mode

Page 20 Water pump flow

S.21 Fan start

S.23 Ignition

S.24 Burner mode

S.25 Fan and water pump return water

S.26 Fan return flow

S.27 Water pump return water

S.28

Burner lock after recharging/heat retention

(cycle suppression)

Other:

S.30

Room thermostat blocks heating operation

(terminal 3’-4’ open)

S.31

Summer mode active or eBUS controller or timer

blocks heating operation

S.32

Heat exchanger antifreeze active, as fan speed

variation is too high. Appliance is within the waiting

time of the operation block function

S.34 Antifrost mode active

S.36

Target value specification of room thermostat

< 20 °C , i.e. the external regulator is blocking

the heating operation

S.41 Water pressure >2.9bar

S.42

Exhaust gas diverter return signal blocks burner

operation (only in connection with accessories) or

condensate pump faulty, heat demand is blocked

S.53

Appliance is within the waiting period of the

modulation block/operation block function due to

water shortage (flow-return spread too large)

S.54

Appliance is within the waiting period of the

operation block function due to water shortage

(temperature gradient)

S.96

Return sensor test running, heating demands

are blocked

S.97

Water pressure sensor test running, heating

demands are blocked

S.98

Flow/return sensor test running, heating

demands are blocked

Table 9.1 Status codes

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 55 56

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Vaillant ecoTEC exclusive 832 Service Manual Page 41

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