Beretta Ciao C.A.I - Page 52

50
caldaie
Dirty after short time Irregular combustion Check pressure of gas supply and to
burner
See section 2.4 page 13
Check working condition and diameter of nozzles
See section 2.3 page 13
Check working condition of burner
See section 2.3 page 13
Check working condition of gas valve
Best to install a suitably sized filter on gas
supply
Check modulator resistance (70-80 OHM)
See section 1.5.17 page 6
Safety valve Excess pressure inside Check system filling up pressure
heating system See section 2.1 page 11
Check position-efficiency filling up tap
See section 7.4 page 72
Check expansion tank filling
See section 2.1 page 11
Check for eventual water leaking from
sanitary system through exchanger into
heating system
Safety valve Check safety valve performance
See section 1.5.18 page 7
Fun not working Carry CHECK FAN page 64
See section 1.6 page 8
PROBLEM CAUSE REMEDY