Electronic Gas Fryers; Electronic Electric Fryers; Replacing Components; Reminders For Replacing Components - Mareno NF74G Serie Instrucciones Para Instalación, Uso Y Mantenimiento

18.3

ELECTRONIC GAS FRYERS

The pilot burner does not light
Possible causes:
• Insufficient gas supply pressure.
• Blocked tubing or nozzle.
• Defective gas tap or valve.
• Igniter defective or not properly connected.
• Igniter or igniter wire defective.
• Defective safety thermostat
Pilot burner goes out during use
Possible causes:
• Insufficient gas supply pressure.
• Defective gas tap or valve.
• Defective thermocouple or insufficient heating.
• Thermocouple incorrectly connected to gas tap or valve.
• Knob of gas tap or valve not pressed sufficiently.
• Defective safety thermostat
The main burner does not light ( even though pilot is lit )
Possible causes:
• Insufficient gas supply pressure.
• Blocked tubing or nozzle.
• Defective gas tap or valve.
• Defective digital thermostat.
Heating cannot be adjusted
Possible causes:
• Defective digital thermostat.
• Defective sensor.
Digital thermostat display does not illuminate
• Defective digital thermostat.
• Check the fuses
• Power supply main switch disconnected
• Insufficient voltage or incorrect electric connection of the ap-
pliance
18.4

ELECTRONIC ELECTRIC FRYERS

The appliance does not heat.
Possible causes:
• Temperature thermostat defective.
• Heating elements defective.
• Safety thermostat tripped.
Heating cannot be adjusted
Possible causes:
• Temperature thermostat defective.

19 REPLACING COMPONENTS

REMINDERS FOR REPLACING COMPONENTS.

• Disconnect the appliance electric supply, if present, before
carrying out any operation.
• After replacing a gas system component, check for gas leaks
at connection points.
• After replacing an electrical system component, check it is
correctly wired.
48
19.1

GAS FRYERS

Replacing the gas valve and safety thermostat.
• Drain off all the oil from the well
• Open the door.
• Remove the control panel.
• Unscrew the locking nut on the exterior of the well.
• Remove and replace the component.
• Change the sensor/bulb sealing O-ring in the well.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
Replacing the burner, the pilot burner, the thermocouple,
the piezoelectric ignition and the igniter.
• Open the door.
• Remove the control panel.
• Remove and replace the component.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
19.2

ELECTRIC FRYERS

Replacing the heating element and the indicator light
• Remove the control panel.
• Remove and replace the component.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
Replacing the working thermostat and safety thermostat
• Drain off all the oil from the well
• Open the door.
• Remove the control panel.
• Unscrew the locking nut on the heating element flange.
• Remove and replace the component.
• Change the sensor/bulb sealing O-ring in the well.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
19.3 ELECTRONIC GAS FRYERS
Replacing the main burner, pilot burner, thermocouple and
igniter
• Open the door.
• Remove and replace the component.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
Replacing the temperature control digital thermostat
• Remove the control panel.
• Disconnect the temperature sensor.
• Remove and replace the component.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
Replacing the temperature sensor and safety thermostat.
• Drain off all the oil from the well
• Open the door.
• Remove the control panel.
• Unscrew the locking nut on the exterior of the well.
• Remove and replace the component.
• Change the sensor/bulb sealing O-ring in the well.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
Replacing the main switch, electronic igniter, fan, fuses.
• Remove the control panel.
• Remove and replace the component.