17
S.p.A.
7.TROUBLE SHOOTING
Pilot burner fails to ignite
No gas
Open the gas cock
Air in the pipes
vent as described in the section on ignition
Pilot nozzle blocked
Clean the nozzle with compressed air
Insufficient gas flow
Adjust flow using the screw on the valve
Pilot goes out
Faulty thermocouple
Control or replace the thermocouple
Incorrect flame adjustment
Adjust the flame using the screw on the gas
valve
Insufficient flame
Adjust the flame until it envelopes the
thermocouple as indicated in figure 12
Poor contact with the gas valve coil
Tighten the connector on the gas valve
Main burner fails to ignite
No current
Restore current
Blocked nozzles
Clean the nozzles thoroughly
Faulty gas valve
Repair or replace the gas valve
Flue gas thermostat activated
Manually reset
Blowout at main burner
Insufficient gas
Control gas pressure at the main burner
Boiler dirty
Check and clean the boiler
Burner dirty
Check and clean the burner
Smell of unburnt gas
Boiler dirty
Check and clean the boiler body
Insufficient flue draught
Control flue draught efficiency
Insufficient air change
Improve room ventilation
Summary of Contents for Rendimax 16 CE
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