Smeg SNZ106VML manual Problems and Causes, Preventive maintenance

Instructions for the user

13.5 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 after every use 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 (at least every 2 years). Each time

the cooker is moved the connection may be stressed: test it for leakages using special sprays or a solution of soap and water.

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 re-greased; this operation must be carried out by an authorised person

Oven gasket: with time the oven gasket may harden and crack on the surface, resulting in leakage of heat from the oven and higher temperatures on the control panel and knobs. Check it periodically (once a year) and replace it if necessary.

14.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 person: please contact your local dealer or Service Center in case you detect any of these malfunctioning.

PROBLEM	CAUSE	WHAT TO DO
The flame is very long with bright	Defect of comburent air or	Call Service Center.
yellow tips.	incorrect injectors.
Black deposits on the bottom of the
pans.
		Call Service Center.
The flame is very short and noisy.	Excess of comburent air.
The flame moves away from the
burner ports.
		Call Service Center
The flame extinguishes when the	Incorrect adjustment of the
burner knob is set to the low flame	minimum heat input or excess of
position.	comburent air.
		Call Service Center.
The valve knob is hard to rotate.	Gas valve worn out or needs
	lubrification.
		Let the appliance cool down: the
The cooker suddenly stops	Overheating of the appliance.
working during operation of the		safety thermal cut-out will self-
oven.		reset when the temperature has
The electronic programmer is not		decreased to a correct value.
operating.		Should the problem arise again,
Overheating of the appliance.		call the Service Center.

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