Troubleshooting; Contacting Vaillant Customer Service; Performing Diagnostics - Vaillant ECOTEC PLUS VU 80 Installation And Maintenance Instructions Manual

13.5.9 Checking the boiler
> Commission the boiler in accordance with the relevant
operating instructions.
13.14 Leak-tightness test
> Purge the heating installation using check programme
P.0 (¬ section 11.4).
> Check the boiler for gas and water tightness.
> If necessary, refill and purge the heating installation
again.
> Check the ignition and that the flame on the burner is
burning evenly.
> Attach the front casing of the boiler (¬ section 4.6).
> Check the flue pipe for correct seating.
> Check the flue pipe for leak-tightness.
> Check the function of the heating (¬ section 11.5.2).
> Record the inspection/maintenance work carried out in
the system book that you leave with the unit's documen-
tation.
ecoTEC plus installation and maintenance instructions 0020134823_01

14 Troubleshooting

14.1

Contacting Vaillant customer service

> If you contact your Vaillant Customer Service or Vaillant
Service partner, then please provide, where possible,
– the fault code that is displayed (F.xx),
– the unit status (S xx) that is displayed in the "Live
monitor" (¬ section 14.2.1).
14.2

Performing diagnostics

You can use the function menu to control and test individ-
ual components of the boiler in the fault diagnostics.
Menu ¬ Installer level ¬ Test programmes ¬ Function
menu
> Use the function menu for fault diagnostics
(¬ section 13.3).
14.2.1 Calling up Live monitor (status codes)
Menu ¬ Live monitor
You can call up the boiler status codes in the display which
provide information on the current operating condition of
the boiler.
S.04
Heating mode
Burner on
Back
14.1 Display views of the status codes
Troubleshooting 14
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