Vaillant aroSTOR VWL B 270/5 Instrucciones De Funcionamiento página 57

Fault
The condensate does not
drain off (water under-
neath the product).
The electric back-up
heater is not working.
Other faults
B Optimising energy consumption
B.1 Using a low tariff and a control cable connection
Settings made by the end user
Setting/function
Target temperature
Time programming
Holiday mode
Boost mode
Settings made by the competent person
Setting/function
Minimum temperature
MAX. TIME function
Load relief level for high-
tariff periods (HT)
*) Exception: The air temperature lies outside the range between -7 °C and +45 °C. In this case,
operation of the back-up heater is permitted.
8000015877_00 Operating instructions
Cause
The condensate discharge hose is
partly or completely blocked
There is a kink in the condensate
discharge hose and this is forming a
trough.
The condensate discharge hose is not
installed.
The ESCO contact or a programmed
operating time is preventing operation
(ECO symbol is lit up).
The safety cut-out for the electric back-
up heater has been tripped as a result
of overheating (> 87 °C).
Particularly econom-
ical
Minimum permiss-
ible in accordance
with the local regu-
lations
None
For absences of
more than 24 hours
Never
Particularly econom-
ical
No
No
0 (Operation of the
immersion heater
and the heat pump
prevented during
high-tariff periods)
Remedy
Check the condensate
discharge hose.
Consult your competent
person.
Check the time program-
ming and consult your
competent person.
Consult your competent
person.
Consult your competent
person.
Average
55 °C
None
For absences of
more than 3 days
Occasionally
Average
43 °C
Auto
1 (Operation of the
immersion heater
prevented during
high-tariff periods)
For increased com-
fort
65 °C
None
For absences of
over a week
Often
Particularly expens-
ive
43 °C
4 hours
2 (Deactivation of
the load relief cir-
cuit)
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