Radiant RAIN 30 E, User Manual

Page: 6 / 8

USER INSTRUCTIONS
5
■ Topping-up the system with water
The water pressure in the central heating circuit must be
checked during the entire period of operation of the boiler.
In this respect, the reading on the pressure gauge
M (fig.
2), located on the lower part of the boiler, must not be less
than 1 bar.
If there is insufficient water in the boiler, the code H2O will
flash on the display (see fig 2).
To bring the system back up to pressure, open the
external filling tap
R (fig. 2) and use the pressure gauge M
(fig. 2) to check that the system pressure reaches 1 bar
and that the code H2O lights up.
When the operation is complete, close the fill tap.
Diagnostics – Error codes:
This paragraph contains a list of error codes that the boiler may generate on the display 8 (see “Control panel”)
together with the relative indications and the operations that the user can carry out to reset the boiler.
If the problem re-occurs after the following actions have been taken, call an authorised Service
Centre.
_
E01
_ Ionisation block
Code E01 lit continuously on the display.
 Check that the gas valve on the boiler and gas meter are open and that there is gas in the mains supply (or in
the tank).
 Switch off then switch on the appliance using switch 1 (see “Control panel”) on the control panel.

When the error code on the display disappears, the boiler will restart.
If the problem persists, Call the Service Centre.
_
E02
_ Safety Thermostat tripped
Code E02 lit continuously on the display. Call the Service Centre.
_
h2o
_ Water Pressure Switch tripped
Code H2O lit continuously on the display.
 Check the water pressure in the central heating circuit. The reading on the pressure gauge M (see fig. 2),
located on the lower part of the boiler, must not be less than 1 bar .
 If the pressure is less than 1 bar, top-up the system as described in paragraph “Filling the system”.

The boiler will restart automatically.
If the problem persists, Call the Service Centre.
_
E05
_ Heating Sensor malfunction
Code E05 lit continuously on the display. Call the Service Centre.
_
E14
_ Air Pressure Switch malfunction
R
M
Fig. 2