Using The Function Menu; Running Test Programs; Resetting Parameters To Factory Settings - Vaillant ecoTEC plus SERIES Installation And Maintenance Instructions Manual

Code Meaning
F.93 Gas group fault
Commu- No communication with the PCB
nication
fault
13.2 Fault codes (continued)
13.3

Using the function menu

In order to remedy boiler problems, you can use the func-
tion menu, which allows you to actuate and test individual
components of the heating installation (¬ section 12.3).
13.4

Running test programs

By activating various test programs, you can trigger special
functions on the boiler
(¬ table. 10.1). The display shows which test program you
have chosen.
> Read how to start the test programs in ¬ section 10.4.
13.5

Resetting parameters to factory settings

As well as the option to manually reset individual parame-
ters to the factory settings specified in ¬ table 11.1
also reset all parameters at once.
> Set the value of the diagnosis code parameter D.096 to
"1" (¬ section 11.1).
You have now reset all parameters to factory settings.
Installation and maintenance instructions ecoTEC plus 0020116700_01
Cause
Combustion quality outside the permitted range: Wrong gas restrictor,
recirculation, wrong gas group, internal pressure measuring point in ven-
turi blocked (do not use lubricant on O-ring in venturi.).
Communication fault between display and PCB in the electronics box
you can
,
Troubleshooting 13
71