Vaillant sensoHOME VRT 380f, Инструкции по эксплуатации и монтажу, Страница: 24 / 108

Appendix
22
Operating and installation instructions sensoHOME 0020298974_00
A.2 Maintenance messages
# Message Description Maintenance work Interval
1 Water defi-
ciency: Fol-
low the in-
structions
in the heat
gen. The water pressure is
too low in the heating
installation. Refer to the operat-
ing instructions for the
relevant heat gener-
ator for information on
filling with water See the operating
instructions for the
heat generator
B -- Troubleshooting, maintenance message
B.1 Troubleshooting
Symptom Possible cause Measure
Display remains dark The batteries are flat
▶
Change all the batteries. (
→
Page 17)
The product is defect-
ive
▶
Replace the product.
No changes in the
display can be made
via the control ele-
ments Software error 1. Take all the batteries out.
2. Insert the batteries in the battery compart-
ment, making sure that the poles are the
right way round.
The product is defect-
ive
▶
Replace the product.
It is not possible to
switch to the installer
level You do not know the
code for the installer
level
▶
Reset the control to the factory settings. All
set values will be lost.
B.2 Troubleshooting
Message Possible cause Measure
Heat generator 1 com-
munication interrupted The cable is defective
▶
Replace the cable.
Incorrect plug connec-
tion
▶
Check the plug connection.
Remote control 1
communication inter-
rupted The batteries in the
radio remote control
are flat
▶
Replace all of the batteries (
→
Operating
and installation instructions for the radio
remote control).
Room temp. sensor
signal on control in-
valid Room temperature
sensor defective
▶
Replace the control.