Évaluations - 2, GPA: 4 ( )

Fabricant : Lincoln Taille : 2.46 mb Nom Fichier : Langue d'enseignement:

Reset if required. Call power co. if needed. Fuse, 2 Amp, control (F7) Check, replace if necessary. Fuse holder Check, replace if necessary. Switch, oven fan Check continuity between switch terminals. Replace switch as needed. 30 minute time delay relay Check for supply voltage to 30 minute time delay relay at terminals #2 and #3. If no voltage is present, trace wiring back to main power switch. If there is supply voltage at terminals #2 and #3, check for output voltage at terminals #1 and #3. If there is incoming voltage but no output voltage, and the main power switch is on, replace the 30 minute time delay relay. Relay, main fan Check for supply voltage to relay contacts, if no voltage is present, trace wiring back to power supply. Check for supply voltage to the coil of the main fan relay. If no voltage is present, trace wiring back to the 30 minute time delay relay, check to be sure that the Overload Protector contacts are closed. If contacts are open, see “Overload Protector” below. If voltage is present, check to insure relay contacts are closing. Replace relay as needed. Overload protector, main fan Check to be sure overload contacts are closed. If not closed, re-set overload. If contacts do not close, replace overload protector. If contacts close, test for proper operation. If the overload contacts do not stay closed, and the amperage is below the overload setting, replace the overload protector. 3240 should be set at 13A 3260 should be set at 18A 3270 should be set at 18A Main fan motor Check for supply voltage at motor. If no voltage is present, trace wiring back to the overload protector. WITH POWER OFF: Check for opens, shorts or grounds. Turn motor shaft to check for locked rotor. Capacitor Check for shorts or grounds. WARNING: Capacitor has a stored charge, discharge before testing. Drive belt Check for loose or broken drive belt. Adjust motor for proper belt tension (maximum of 3/8-inch deflection), or replace drive belt as needed. Bearings, Fan shaft Check for any damage or excessive wear on the shaft bearings. Replace bearings as needed. Impinger X2 – Analog Service Manual – Dom & Int’l Oven will not heat Gas supply Check for adequate gas supply to oven. Manual gas shut off valve Check to see that the manual gas shut off valve is open. Also, check flexible gas line connection for any damage. Main fan motor Check for main fan operation. If it is not operating, refer to “Oven fan will not run”. Relay, main fan Check for supply voltage to relay terminal #13. If voltage is not present, trace wiring back to power supply. If voltage is present, check for supply voltage at terminal #14. If there is no voltage at terminal #14, and the relay is energized, replace the main fan relay. Fuse, 2 Amp, control (F8) Check, replace if necessary. Fuse holder Check, replace if necessary. Switch, oven fan Check for supply voltage to the switch, if no voltage is present, trace wiring back to the main fan relay. Check continuity between switch terminals. Replace switch as needed. Switch, burner Check for supply voltage to the switch, if no voltage is present, trace wiring back to the oven fan switch. Check continuity between switch terminals. Replace switch as needed. Air pressure switch Check for supply voltage to the air pressure switch. If no voltage is present, trace wiring back to burner switch. This normally open switch should close when the main fan is activated. Check air switch tube for blockage or any obstructions, repair as needed. Refer to the “Removal and installation” section for proper adjustment of air pressure switch. Replace air pressure switch as needed. Thermostat, hi-limit Terminals are normally closed. If open, reset and test oven for proper operation. If thermostat will not hold for maximum oven temperature, and oven is not exceeding temperature control setting, check for proper location of capillary tube in the oven cavity. If above checks okay, replace hi-limit thermostat. Burner control Check for supply voltage to the burner control at terminals #1 and #3. If no voltage is present, trace wiring back to the hi-limit thermostat. If voltage is present, check for supply voltage at pins #8 and #3 (burner blower motor). If voltage is not present, replace burner control. If voltage is present, proceed. Motor, burner blower Check for supply voltage to the burner blower motor. If no voltage is present, trace wiring back to the burner control. If voltage is present, and the motor is not turning, check for opens, shorts or grounds. WITH POWER OFF: Check for locked rotor. Replace burner blower motor as needed. Air pressure switch (burner motor) Check for supply voltage at the COM terminal on the air pressure switch. If no voltage is present, trace wiring back to burner control. If voltage is present, check for supply voltage switching to the NO terminal on the air pressure switch. If the burner blower motor is running, but voltage is not switching to the NO terminal of the air pressure switch, chec...

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