Cadel RIVER IDROTECH 18 Installer Manual page 40

PROBLEM POSSIBLE CAUSES SOLUTIONS
BOILER EXTERNAL
CONDENSATE
NO ANTI-CONDENSA-
WATER ON FLOOR
TION VALVE
LEAK FROM PIPES
Room thermostat
(local or remote)
adjusted too low. If
remote thermostat,
check whether it is
defective.
The circulator does
not turn because it is
Radiators cold in the
blocked.
winter
The circulator does
not turn.
Air inside the
radiators
Circulator (pump)
blocked
No HEATING water
comes out
NO PRESSURE in
SYSTEM
Noise and gurgling Air in the system
DOMESTIC HOT
3-WAY VALVE
WATER DOES NOT
BLOCKED
COME OUT
40
RIVER IDROTECH 18 - 24 - 24H2O
Adjust the boiler to a higher temperature
INSTALL ANTI-CONDENSATION VALVE
CHECK CLOSURE of the PIPE FITTINGS
Adjust it to a higher temperature. Replace it if necessary (if remote)
Release the circulator by removing the cap and turning the shaft
with a screwdriver
Check its electrical connections, replace it if necessary
Bleed the radiators
Release the circulator (pump)
INCREASE PRESSURE and CHECK FOR LEAKS
Vent the air and fill the system
CHECK 3-WAY VALVE
INTERVENTION