Vaillant electronicVED VED E 18/8 INT II User Manual

Appendix
0020288452_00 electronicVED Installation instructions 37
Appendix
A Troubleshooting
Symptom Possible cause Measure
Product disconnected
from the power supply
Building's fuse has
been tripped
▶ Replace the electronics.
The safety switch in
the product has been
triggered
▶ Replace the electronics.
No hot water; the wa-
ter remains cold
Product is disconnec-
ted from the power
supply
▶ Check L1, L2 and L3 against PE (230 V)
and L1, L2 and L3 (400 V).
1. If you do not measure any power, proceed
as described under the fault "Product dis-
connected from the power supply".
The measured value
on the heating block
(connection 1 against
connection 4) is
greater than 200 Ω
▶ Replace the heating block.
No relay clicking on
the electronics when
the draw-off starts
▶ Replace the impeller.
Other cause ▶ Replace the electronics.
The water does not
become hot enough
The target temperat-
ure or volume flow are
not set correctly
▶ Set the target temperature to approx. 40 °C
and the volume flow to approx. 5 l/min.
The measured value
on the heating block
(connection 1 against
connection 4) is
greater than 200 Ω
▶ Replace the heating block.
The relay does not
click on the electronics
when there is more
than 4 l/min
▶ Replace the impeller.
Other cause ▶ Replace the electronics.
B Technical data
Technical data – General
VED E
18/8 INT II
VED E
21/8 INT II
VED E
24/8 INT II
VED E
27/8 INT II
Temperature setting
Between
30 and 55 °C,
to any value,
electronically
regulated
Between
30 and 55 °C,
to any value,
electronically
regulated
Between
30 and 55 °C,
to any value,
electronically
regulated
Between
30 and 55 °C,
to any value,
electronically
regulated
Heating system heat
generator
Bare wire heat-
ing coil
Bare wire heat-
ing coil
Bare wire heat-
ing coil
Bare wire heat-
ing coil

Vaillant electronicVED VED E 18/8 INT II Specifications

General

Brand	Vaillant
Model	electronicVED VED E 18/8 INT II
Category	Boiler
Language	English