OPERATING INSTRUCTIONS

62.9679.01_UL Seite 11

8. MALFUNCTION
Fryer does not heat up. • The STB limiter has
tripped.
• Defective thermostat.
•
• The oil temperature
has exceeded 445°F
(230°C).
• The capillary tube sen-
sor is damaged.
• The heating is opera-
ting in the trough wit-
hout oil.
• Oil level is too low.
- Contact the nearest
service station by tele-
phone.
- Inform After-sales ser-
vice.
- Inform After-sales ser-
vice.
- Inform After-sales ser-
vice.
- Pour in oil.
-
- Top up with oil.
Fryer overheats; the oil
smokes. • Oil level too low. - Fill with oil up to the
max. mark.
Flame smokes. • Gas mix too rich.
• Partially blocked burner
gaps.
- Inform Customer Ser-
vice.
Long yellow flame tips. • Mixing tube narrowed by
dirt. - Inform Customer Ser-
vice.
Flame lifts off. • Exit velocity too h igh due
to blocked burner gaps.
• Pressure regu lator on
gas cylinder not opera-
ting correctly.
- Inform Customer Ser-
vice.
Flame flashes back. • Mixture too lean.
• Insufficient ex it velocityat
burner gaps.
• Soiled airways
• Blocked nozzle.
- Inform Customer Ser-
vice.
No flame or flame too
small. • Blocked nozzle or mixer
tube.
• Blocked gas tap.
• No gas.
• Insufficient ga s pres-
sure.
- Inform Customer Ser-
vice.
- Check gas ta p setting.
No flame at low setting. • Blocked low setting
nozzle. - Inform Customer Ser-
vice.
No flame. • Blocked burner gaps.
• Blocked nozzle. - Clean pilot burner cap.
Flame goes out after con-
trol valve release. • Thermo-element insuf-
ficiently heated (dirty?)
• Defective thermo-ele-
ment
- Inform Customer Ser-
vice.
Flame too small or too
large. • Primary air ratio adju-
sted.
• Nozzle blocked.
- Inform Customer Ser-
vice.

Malfunction Possible cause Remedy

Pilot burner