Ariston PF 640 EST Handbuch Seite 11

It may occur that the cooktop does not function or does
not function properly. Before calling customer service for
assistance, lets see what can be done.
First of all, check to see that there are no interruptions in
the gas and electrical supplies, and, in particular, that the
gas valves for the mains are open.
The burner does not light or the flame is not uniform
around the burner.
Check to make sure that:
• The gas holes on the burner are not clogged;
• All of the movable parts that make up the burner are
mounted correctly;
• There are no draughts around the cooking surface.
The flame does not stay lighted on the model with
the safety device.
Check to make sure that:
• You press the knob all the way in;
• You keep the knob pressed in long enough to activate
the safety device.
• The gas holes are not clogged in the area
corresponding to the safety device.
Is there a problem?
The burner does not remain on when set to "Low".
Check to make sure that:
• The gas holes are not clogged.
• There are no draughts near the cooking surface.
• The minimum has been adjusted correctly (see the
section entitled, "Minimum Regulation").
The cookware is not stable.
Check to make sure that:
• The bottom of the cookware is perfectly flat.
• The cookware is centered correctly on the burner or
electric hot plate.
• The support grids have not been inverted.
If, despite all of these checks, the cooktop does not
function properly and problem persists, call the nearest
Customer Service Centre, informing them of:
- The type of problem.
- The abbreviation used to identify the model (Mod. ...) as
indicated on the warranty.
Never call upon technicians not authorized by the
manufacturer, and refuse to accept spare parts that are
not original.
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