Electrolux Professional A7FTEDCSI0, Service Manual

Page: 55 / 75

55
FRY TOP 700/900 EL/GAS
5 TROUBLESHOOTING
5.1 INTRODUCTION
The following chapters are intended only for authorized technicians / engineers.
PROBLEM DESCRIPTION WHAT TO DO
CHAPTER
REFERENCE
1-
does not
ignite / re-
main lit
Gas pressure
supply
- there's no gas supply
- gas pressure is low
- nozzles are obstructed § NOMINAL GAS PRESSURE CHECK
§ GAS PRESSURE REGULATOR
Burner
-dirty/blocked aerator
-set aerator as indicated on the booklet § BURNER
Pilot Flame position / flame adjustment
§ THERMOCOUPLES FLAME POSI-
TION Pilot flame adjustment: § GAS
VALVE 700 GAS VALVE 900
Electrical supply
(only on models with electrical connection) there's no
electrical supply
§ ELECTRICAL WIRING DIAGRAM
§ TECHNICAL DATA
Electronic igni-
tion cable igniter
no spark - cable is broken or disconnected (between
electronic ignition cable and spark plug) § IGNITER 700
§ GAS VALVE 900
Spark plug spark plug is broken or wrong positioned
§ PILOT ASSEMBLY 700 & 900
Thermocouple
tension is not sufficient to open magnetic coil (gas
valve)
§ PILOT & THERMOCOUPLE INTER-
RUPTED 700 & 900
§ AGING OF THERMOCOUPLES
Safety thermo-
stat
-reset the thermostat when at room temperature
-check thermostat intervention by measuring electri-
cal contact continuity
-oil capillary is broken
-thermostat bulb is not correctly inserted into the top
groove
-make temporary jumper to check if the PROBLEM
has resolved Probe positioning : § THERMOSTAT &
SAFETY THERMOSTAT BULB - 700 &
900
Rearm pin: § SAFETY THERMOSTAT
700 & 900
Knob check the knob correctly controls the gas valve
§ 900 GAS SUPPLIED
Gas valve, inlet/
outlet pressure Outlet gas valve pressure check only on models using
gas solenoid MERTIK (900mm appliances)
Appliance requirements: § GAS
§ NOMINAL GAS PRESSURE CHECK
§ 900 GAS APPLIANCES
2-
does not
switch on
Electrical supply electrical supply
§ ELECTRICAL WIRING DIAGRAM §
TECHNICAL DATA
Safety thermo-
stat
-reset the thermostat when oil is at room temperature
-check thermostat intervention by measuring electri-
cal contact continuity
-oil capillary is broken
-thermostat bulb is not correctly inserted into the top
groove Probe positioning : § THERMOSTAT &
SAFETY THERMOSTAT BULB - 700 &
900
Rearm: § SAFETY THERMOSTAT 700 &
900
Electrical con-
nections
electrical connection continuity (thermostat-safety
thermostat-heating elements)
§ ELECTRICAL WIRING DIAGRAM §
TECHNICAL DATA
Heating ele-
ments
compare resistance values of all heating element
electrical branches § HEATING ELEMENT 700 & 900
Thermostat contact continuity
§ WORK THERMOSTAT 700 & 900
Selector contact continuity or loose connections
§ SELECTOR
WARNING !
Take GREAT CARE when connecting / testing anything with live current, if you are unsure what you
are doing and how to use your equipment safely, then
DON'T DO IT.