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Lincoln 1100 Series service manual Trouble Shooting Guide Electric Ovens

Models: 1100 Series

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Page 34

TROUBLE SHOOTING GUIDE

ELECTRIC OVENS

MODEL 1104	380/220 VAC	THREE PHASE	50 HZ
MODEL 1105	415/240 VAC	THREE PHASE	50 HZ
MODEL 1106	240 VAC	SINGLE PHASE	50 HZ
REFER TO PROPER SCHEMATIC FOR IDENTIFIED COMPONENTS
SYMPTON	POSSIBLE CAUSE	EVALUATION
Oven fan will not run	Incoming Power Supply	Check circuit breakers. Reset if required.
		Call Power Co. if needed.
	Fuse, 1 Amp,	Check, replace if necessary.
	Fuseholder	Check, replace if necessary.
	Switch, Main Fan	Check for continuity between switch terminals.
	Transformer, Control	120 VAC ± 10% should be present
		at secondary of transformer. If proper voltage is not
		present, check transformer primary for proper input.
		Replace as needed.
	Main Fan Relay	Check continuity to 120 VAC coil. Check
		for power to relay coil (120 VAC). Check for 220/240
		VAC to the relay terminals. Check, replace
		if necessary.
	Fuse 10 A. Main Fan	Check, replace if necessary.
	Fuse Holder	Check, replace if necessary.
	Main Fan Motor	Check for opens, shorts, or grounds.
		WITH POWER OFF: Turn fan blade to
		check for locked rotor.
	Capacitor	Check for opens, shorts, or grounds.
No control box cooling		Check for main fan operation. If not operating, refer
		to “Oven fan will not run”.
	Cooling Fan Motor	120 VAC should be present at the fan motor. If
		voltage is present, check for opens or shorts.
		WITH POWER OFF: Check for locked rotor
		on fan motor.
No main fan cool down	Cool Down Thermostat	Check cool down thermostat (thermostat
		closes at 160°F and opens at 140°F).
		Check for power (220/240 VAC) at cool down thermo
		stat. With cool down thermostat preheated, check for
		continuity. If switch is open, replace.
Oven will not heat	Main Fan Motor	Check for main fan operation. If it is not
		operating, refer to “Oven fan will not run”.
	High Limit Thermostat,	Terminals are normally closed (open at
		190°F). If open, reset the thermostat and
		test for proper operation. If it will not reset and hold,
		then replace.

34	Impinger II - 1100 Series Service Manual - International

Image 34

Lincoln 1100 Series service manual Trouble Shooting Guide Electric Ovens

Contents

MODEL 1100 SERIES SERVICE MANUALIMPINGER CONVEYOR OVENS INTERNATIONALTABLE OF CONTENTS SEQUENCE OF OPERATIONS 1104 thru the display into a temperature reading SEQUENCE OF OPERATION 1134 - 1135 - 1136 - S/N 2011383 and above SEQUENCE OF OPERATIONS - 2011383 and above SEQUENCE OF OPERATIONS 1152 thru intervals to maintain desired temperature temperature reading by the display into a temperature readingSCHEMATIC SCHEMATIC SCHEMATIC 1134, 1135, 1150, S/N 2011383 AND BELOW SCHEMATIC 1134, 1135 S/N 2011383 AND ABOVE SCHEMATIC 1150 S/N 2011383 AND ABOVE SCHEMATIC 1136, S/N 2011383 AND BELOW SCHEMATIC 1136, S/N 2011383 AND ABOVE SCHEMATIC 1151 S/N 2011383 AND BELOW SCHEMATIC 1151 S/N 2011383 AND ABOVE SCHEMATIC1152 THRU 1158 S/N 2011383 AND BELOW SCHEMATIC1152 THRU 1158 S/N 2011383 AND ABOVE SCHEMATIC1152 AND 1153 S/N 2011821 AND ABOVE SCHEMATIC 1154 THRU 1158 S/N 2011821 AND ABOVE TROUBLE SHOOTING GUIDE GAS OVENS MODELS 1152 - 1153 - 1154 - 1155 - 1156 - 1157 -No main fan cool down Burner Switch WITH POWER OFF: Check for locked rotorhave closed if control box temperature cool down switch. If switch is closed and voltageCheck for proper line voltage to Thermocouple Probe Temperature Control Power Supply Ignition ControlTemperature Control Flame will not stay onthen the problem is usually with thetemperature Power Supply improper adjustment. Also check for wornbearings. TheInstallation and Operations Manual Check power supply at the DCDC Gearmotor this condition remove power from the time/temp Power Supplysurge in the incoming power lines. To eliminate switch for 15 seconds, or if display stays onTROUBLE SHOOTING GUIDE ELECTRIC OVENS This normally open switch should close when the Switch, HeatAir Pressure Switch Temperature Controlas follows MODEL Main fan runs after WITH POWER OFF: remove the LEADS ATTACHED TO THE TEMPERATURETemperature Control potentiometer leads from the temperature controlConveyor will not run TROUBLESHOOTING GUIDE ELECTRIC OVEN MODEL 1151 200 VAC THREE PHASE 60 HZRelay, Main Fan Mercury Contactor Oven heats with switch offMercury Contactor Heater Elements Intermittent HeatingSTEPPER MOTOR DRIVE Conveyor will not run yellow wires, thermo 12 VAC Power Supplyof temperature sensors red wire and 1 white wireexperienced, such as a rolling of REMOVAL, INSTALLATION, AND ADJUSTMENT IMPINGER II CONVEYOR OVENRELAY, DPST 1.Shut off power at main breaker TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING 1.Shut off power at main breakerThis is part of the burner blower motor assembly MOTOR, BURNER BLOWERAIR PRESSURE SWITCH Page Page SOLENOID VALVE 1.Shut off power at main breaker 1.Shut off power at the main breaker1.Shut off power at main breaker 5.Loosen pipe union in piping assemblyIGNITION CONTROL 1.Shut off power at main breaker 1.Shut off power at main breaker 1.Shut off power at main breaker1.Shut off power at main breaker ORIFICE, MAIN BURNERLAMP, PILOT BURNER LENS, PILOT LAMP 7.To adjust optical encoder OPTICAL ENCODER ASSEMBLY1.Remove gearmotor assembly see “GEARMOTOR” Above TACH. GENERATOR 1.Turn off power at main breakerD C MOTOR CONTROL BOARD 5.Reverse wires fastened to terminals T1 and T2 1.Turn off power and remove conveyor4.Reverse wires fastened to terminals A+ and A 1.Turn off power 2.Remove conveyorTRANSFORMER, TIME/TEMP. DISPLAY MODEL 1100 SERIES OVENS SWITCH, DISPLAY, SET OVEN TEMPERATUREOHMS SWITCH, ON/OFF TRANSFORMER, STEP DOWN/120 VAC DIP SWITCHES FOR 50 SEC. TO 30 MIN. TIMES maximum speed potrefer HALL EFFECT SENSOR - REPLACEMENT AIR PRESSURE SWITCH, BURNER OR OVEN CAVITY MOTOR, BURNER BLOWER 1.Shut off power at main breakerBURNER ALARM - REPLACEMENT 2.Remove conveyorLETTER GENERAL –1100SERIESDESCRIPTION GENERAL 1100 SERIES BLOW UP 1136,1150,1151,1160 Thru1163 Page LETTER CONTROL COMPARTMENT - FRONTMODELS 1152 THRU DESCRIPTIONCONTROL COMPARTMENT – FRONT 1152-1158BLOW UP LETTER CONTROL COMPARTMENT – REARDESCRIPTION CONTROL COMPARTMENT – REAR BLOW UP MODELS LETTER AND ABOVECONTROL COMPARTMENT – REAR DESCRIPTIONMODELS 1130-1136,1150,1151S/N 2011383 AND ABOVE CONTROL COMPARTMENT – REAR BLOW UPMODELS 1160-1163S/N 2011978 AND ABOVE LETTER CONTROL COMPARTMENT – REARDESCRIPTION Page LETTER CONTROL COMPARTMENT – REARMODELS 1152 THRU 1158 S/N 2011821 AND ABOVE DESCRIPTIONPage LETTER OVEN BACK ASSEMBLY – 1100 SERIESDESCRIPTION OVEN BACK ASSEMBLY – 1100 SERIES BLOW UP LETTER GEARMOTOR ASSEMBLY – 1100 SERIESDESCRIPTION GEARMOTOR ASSEMBLY – 1100 SERIES BLOW UP LETTER CONVEYOR/DOOR – 1100 SERIESDESCRIPTION CONVEYOR/DOOR – 1100 SERIES BLOW UP This page intentionally left blank This page intentionally left blank