Troubleshooting; Detecting And Rectifying Faults; Fault Codes In The Display; Care And Maintenance - Vaillant HOME REGULAR 12-A Operating Instructions Manual

5 Troubleshooting

◁
The main power supply is not inter-
rupted. The product continues to be
supplied with power.
5 Troubleshooting

5.1 Detecting and rectifying faults

▶
If problems occur whilst operating the
product, you can carry out certain self-
checks with the aid of the table in the
appendix.
Troubleshooting (→ Page 12)
▶
If the product still does not function
without problems after the checks have
been carried out using the table, con-
tact your competent person to rectify
the problem.

5.2 Fault codes in the display

Fault codes have priority over all other dis-
plays. If several faults occur at the same
time, the corresponding codes are dis-
played alternately for two seconds each.
▶
If your product displays a fault code
(F.xx), contact a competent person.

6 Care and maintenance

6.1 Maintenance

An annual inspection of the product carried
out by a competent person is a prerequis-
ite for ensuring that the product is perman-
ently ready and safe for operation, reliable,
and has a long working life.

6.2 Caring for the product

Caution.
Risk of material damage
caused by unsuitable clean-
ing agents.
▶
Do not use sprays, scouring
agents, detergents, solvents
or cleaning agents that con-
tain chlorine.
10
▶
Clean the casing with a damp cloth and
a little solvent-free soap.
6.3 Checking the condensate
drain pipework and tundish
The condensate drain pipework and tun-
dish must always be penetrable.
▶
Regularly check the condensate drain
pipework and tundish for faults and,
particularly, for blockages.
You must not be able to see or feel any
obstructions in the condensate drain pipe-
work and tundish.
▶
If you notice a fault, have it rectified by
a competent person.

7 Decommissioning

7.1 Temporarily decommissioning
the product
▶
Temporarily decommission the product
only if there is no risk of frost.
▶
Switch off the product via the main
switch provided on-site.
◁
The display goes out.
▶
When decommissioning the product for
an extended period (e.g. holiday), also
close the gas isolator cock.
7.2 Permanently
decommissioning the product
▶
Have a competent person permanently
decommission the product.

8 Recycling and disposal

▶
The competent person who installed
your product is responsible for the dis-
posal of the packaging.
If the product is identified with this
symbol:
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