Radiant RAIN 30 E, User Manual

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