ITW MBM GF465, Operating Instructions Manual

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THE PRESENT MANUAL IS PROPERTY OF THE MANUFACTURER. ANY REPRODUCTION, EVEN PARTIAL, IS PROHIBITED.
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ROUTINE MAINTENANCE
4.
Troubleshooting
Whenever the appliance does not work properly, try to solve the less serious problems using
this table.
FAULT POSSIBLE CAUSE INTERVENTION
The gas appliance does not turn
on • Mains tap closed
• Air in the pipe
• Open the mains tap
• Repeat the ignition operation
In the cooking compartment
there are stains • Water quality
• Poor cleanser
• Poor rinse
• Filter the water (see softener )
• Use the recommended deter-
gent
• Repeat rinsing
The pilot light does not go on • Check the circuit of the piezoe-
lectric igniter
• The pilot light is obstructed
• Gas valve shut
• Gas valve or thermostat dama-
ged
• Replace cable, glow plug or piezo
• Replace/Clean pilot light nozzle
• Open gas valve
• Replace valve or thermostat (see
chap. 7 Replacement of compo-
nents)
The pilot light goes on but the fla -
me does not stay lit
• Thermocouple damaged
• Triggered safety thermostat
• Damaged gas valve • Replace the Thermocouple
• Reset the safety thermostat
• Replace the gas valve
The fryer does not cook correctly • Problems with the gas pressure
• Gas valve thermostat bulb posi-
tion
• Gas valve
• Verify the gas pressure to the noz-
zle
• Set the bulb in the correct position
• Use an external thermometer to
check the oil temperature in the
tank - if not correct, replace the
valve
The burner flame goes off during
operation
• Problems with the gas pressure
• Primary air not adequate
• Incorrect nozzles • Check the dynamic gas pressure
(all machines on)
• Adjust the primary air
• Replace the nozzles
If the problem cannot be resolved, turn the appliance off, disconnect it from the electrical mains
and shut all the supply valves. Then contact authorized customer service