Status And Error Messages - Vaillant VRT 392f Operating And Installation Manual

5 Status and error messages

5 Status and error messages
Status and error messages are displayed in the second
row of the field for basic data.
Status messages
Holiday
Within a set holiday time period the heating is controlled
to the room set target temperature for this period.
Service + telephone number of the expert technician
Indicates maintenance for the heating system is
required.
In addition, the telephone number of your expert
technician appears if he has programmed it in.
Dashes (--) instead of values are displayed at the
controller
When the dial is turned the values to be displayed must
first be called up by the radio receiver unit. Until these
values are obtained only dashes instead of values will be
displayed (--). This generally takes up to two seconds.
Depending on the ambient conditions, it may take up to
15 minutes until the current data are called up by the
radio receiver unit and are subsequently displayed.
If dashes (--) are displayed continuously, consult your
expert technician.
Error messages
Error boiler
Informs you about an error in the appliance.
Contact your expert technician.
Com. Error boiler
The connection between the radio receiver unit and
appliance is faulty.
Contact your expert technician.
No radio communication
Radio communication between the VRT 392f and radio
receiver unit is faulty.
Contact your expert technician.
Change battery
The batteries at the controller are almost empty.
Change all batteries at the controller.
18
This is how to do it:
Pull the controller (1) off the wall socket (2). This
can be done by pushing a screwdriver into the two
retaining straps (see Fig. 5.1 arrows).
Fig. 5.1 Removing the VRT 392f
Key
1 Controller VRT 392f
2 Wall socket
Mount four new batteries of the same type for the
controller on the reverse side of the controller
PCB.
Fig. 5.2 Inserting the batteries
Operating manual VRT 392f 0020044239_01
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