Installation and Servicing ecoTEC plus40
Display Meaning Display value/adjustable value
d. 0 Heating part load Adjustable heating part load in kW (factory setting:
max. output)
d. 1 Water pump over run time for heating mode 2 - 60 min (factory setting: 5 min)
d. 2 Max. burner anti cycling period at 20 °C Flow temperature 2 - 60 min (factory setting: 20 min)
d. 3 Hot water flow temperature reading (when accessories are
fitted)
in °C
d. 4 Current temperature for warm start sensor (when accessories
are fitted) Current storage tank sensor
in °C
d. 5 Flow temperature target value or return target value when
return regulation is set.
in °C, max. the value set in d.71 Limited by the eBUS
controller (if an eBUS controller is connected)
d. 6 Hot water temperature target value in °C, 35 to 65 °C
d. 7 Warm start temperature target value (when accessories are
fitted) Storage temperature target value (system boiler only)
in °C, 40 to 65 °C in °C, 15 °C for left stop, then 40 to
70 °C
d. 8 External controls heat demand (terminals 3-4) 0 = open (no heat request) 1 = closed (heat request)
d. 9 Flow target temperature from external analogue regulator to
terminal 7-8-9/eBUS
in °C, minimum from ext. eBUS target value and target
value terminal 7
d.10 Status internal heating pump 1 = on, 0 = off
d.11 Status external heating pump 1 to 100 = on, 0 = off
d.12 Cylinder charging pump (via accessory module) 1 to 100 = on, 0 = off
d.13 Hot water circulation pump (via accessory module) 1 to 100 = on, 0 = off
d.22 Hot water demand 1 = on, 0 = off
d.23 Summer/Winter function 1 = Winter, 0 = Summer
d.25 Hot water activation via eBUS Control 1 = yes, 0 = no
d.30 Control signal for both gas valves 1 = on, 0 = off
d.33 Fan speed target value in rpm/10
d.34 Fan speed actual value in rpm/10
d.35 Position of diverter valve (when accessories are fitted) 0 = Heating; 100 = Hot water; 40 = Centre position
d.36 Hot water flow sensor in l/min
d.40 Flow temperature Actual value in °C
d.41 Return temperature Actual value in °C
d.44 Digitised ionisation potential Display range of 0 to 102, > 80 no flame, < 40 even
flame
d.47 Outside temperature (with weather compensating Vaillant
controller only)
Actual value in °C
d.67 Remaining burner anti cycling time in min
d.76 Appliance variant (device specific number) 00 to 99
d.90 Digital regulator status 1 = identified, 0 = unidentified (eBUS Address <=10)
d.91 DCF status with connected external probe with DCF77 receiver 0 = no reception, 1 = reception, 2 = synchronised, 3 =
valid
d.97 Activation of the second diagnostic level Password: 17
Table 10.2 Diagnostics codes of the first diagnostic level
10 Troubleshooting
Supplied by HeatingSpares247.com
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