Radiant RK 25/B, User Manual

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USER INSTRUCTIONS
5
E03
102° C Thermo fuse tripped
Code
E03
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. 1),
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.
E12
D.H.W boiler sensor malfunction
Code
E12
lit continuously on the display.
Call the Service Centre.
E16
Electric Fan Malfunction
Code
E16
lit continuously on the display.
Call the Service Centre.
E22
Parameter programming request
Code
E22
lit continuously on the display.
Call the Service Centre.
E35
Flame Detection Malfunction
Code
E35
lit continuously on the display.
Call the Service Centre.
N.B. If the boiler is to be left unused for a long period of time,
the user must do one of the following:

Make the boiler safe
by disconnecting all the power supplies (electricity and gas), and draining the heating
system and the condensate trap.
 Leave the boiler in
standby,
leaving the electricity and gas supplies connected and, consequently the anti-freeze
function.