Instructions for the user
11.5 Preventive maintenance
This appliance does not need any special maintenance. However, a few simple operations have to be carried out periodically to prevent malfunctioning:
Burners: the burners must be cleaned periodically to ensure correct combustion; make sure that all the openings and flame ports are clean and free of obstacles, and that the burners rest firmly on their supports.
Gas connection: the gas connection must be checked periodically.
Flexible pipes: if a flexible pipe is used, it must be inspected
periodically (once a year) for leakages: if the surface of the pipe appears rigid and cracked, disconnect immediately the cooker from the gas supply and replace the pipe with a new one.
Valves: if the gas valves get stuck or hard to turn, they need to be cleaned and
12. PROBLEMS AND CAUSES
Each of the following cases is caused by an abnormal operation of the appliance and should be dealt with by a authorised persons: please contact your local dealer or Service Center in case you detect any of these malfunctioning.
PROBLEM
The flame is very long with bright yellow tips.
Black deposits on the bottom of the pans.
The flame is very short and noisy. The flame moves away from the burner ports.
CAUSE
Defect of comburent air or incorrect injectors.
Burner dirty or flame ports obstructed.
Excess of comburent air.
WHAT TO DO
Clean the burner.
Call Service Center if the problem remains.
Call Service Center.
The flame extinguishes when the burner knob is set to the low flame position.
The valve knob is hard to rotate.
Incorrect adjustment of Call Service Center. the minimum heat input or
excess of comburent air.
Gas valve worn out or Call Service Center. needs lubrification.
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