User manual

RIVA PLUS USER MANUAL 15
6. Useful Advice Cont.
External Cleaning:6.4
Before performing any cleaning, disconnect the appliance from the electrical mains, using •
the dedicated circuit breaker or serviceman’s switch located adjacent to the appliance.
To clean the external panels, use a cloth soaked in soapy water. Do not use solvents, abra-•
sive powders or sponges.
Do not carry out cleaning of the appliance and/or its parts with readily f ammable substanc-•
es (for example petrol, alcohols, naphtha, etc.).
Operational Faults:6.5
If the lock-out signal lamp comes on:
This indicates that the safety lock-out 1 •
(Fig. 6.2) has stopped the boiler
To re-start the boiler , it is necessary to •
turn the function selector B in the position
and then press the boiler reset button
2 (Fig. 6.2).
For the f rst light up and following main-•
tenance procedures for the gas supply , it
may be necessary to repeat the resetting
operation several times so as to remove
the air present in the pipework.
Figure 6.2
2
1
B
If noises due to air bubbles are heard during operation:
You should check that the pressure on the temperature and pressure gauge (Fig. 5.1 on •
page 11) is not below the correct setting.
If required, f ll up the system correctly, as described in the section 5.2 of this manual.•
Bleed any air present in the radiators, if necessary.•
If the pressure on the temperature and pressure gauge (Figure 5.1 on page 11) has
gone down:
It is necessary to f ll up the appliance with water again, so as to raise the pressure to an •
adequate level as described in the section 5.2 of this manual.
If f lling up with water has to be done very frequent, have the system checked for leaks.•