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Lincoln 1100 Series service manual Trouble Shooting Guide Gas Ovens

Models: 1100 Series

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TROUBLE SHOOTING GUIDE

GAS OVENS

MODELS 1152 - 1153 - 1154 - 1155 - 1156 - 1157 - 1158

REFER TO PROPER SCHEMATIC FOR IDENTIFIED COMPONENTS

SYMPTOM	POSSIBLE CAUSE	EVALUATION
Oven fan will not run	Incoming Power Supply	Check circuit breakers, reset if
		required, call power company if needed.
	Main Fan Switch	Check continuity between switch
		terminals.
	Control Box High Limit	Terminals are normally closed, and
	Thermostat	open at 170°F ± 5F (76.6°C ± 2.8°C).
	NOTE: Discontinued at	Check for over heating and reset
	S/N 2011821	thermostat. Test for proper
		operation. If it will not reset and hold, re-
		place thermostat.
	Fuse, 1 Amp	Check, replace if necessary.
	Fuseholder	Check, replace if necessary.
	Transformer,Step Down	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.
	Oven Start Relay	Check for 120 VAC to relay coil. If
		voltage is not present, trace wiring
		back to power source. If voltage is
		present, check to insure contact
		is closing.
	20 Minute Time Delay	Check for 120 VAC at terminal #1 to
		neutral on 20 minute Time Delay
		Relay. If no voltage is present, trace
		wiring back to power source.
		If voltage is present at terminal #1,
		check for 120 VAC at terminal #2 to
		neutral. If no voltage is present, and
		cool down relay contact is closed,
		replace Time Delay Relay.
	Main Fan Relay	Check for 120 VAC to coil of the Relay
		if no voltage is present, trace wiring
		back to 20 minute Time Delay Relay.
		If voltage is present, check to insure
		contacts are closing.
	Fuse, 10 Amp	Check, replace if necessary.
	Fuseholder	Check, replace if necessary.
	Motor Capacitor	Check for opens, shorts, or grounds.
	Main Fan Motor	Check for supply voltage to main fan
		motor. If voltage is not present, trace
		wiring back to main fan relay. Check for
		opens, shorts, or grounds.
		WITH POWER OFF: turn fan blade to
		check for locked rotor.
Impinger II - 1100 Series Service Manual - International		25

Image 25

Lincoln 1100 Series service manual Trouble Shooting Guide Gas Ovens, MODELS 1152 - 1153 - 1154 - 1155 - 1156 - 1157

Contents

IMPINGER CONVEYOR OVENS SERVICE MANUALMODEL 1100 SERIES 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 by the display into a temperature reading 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 MODELS 1152 - 1153 - 1154 - 1155 - 1156 - 1157 - TROUBLE SHOOTING GUIDE GAS OVENSNo main fan cool down have closed if control box temperature cool down WITH POWER OFF: Check for locked rotorBurner Switch switch. If switch is closed and voltageCheck for proper line voltage to Temperature Control Power Supply Ignition ControlThermocouple Probe Temperature Control Flame will not stay onthen the problem is usually with thetemperature bearings. TheInstallation and Operations Manual improper adjustment. Also check for wornPower Supply Check power supply at the DCDC Gearmotor surge in the incoming power lines. To eliminate Power Supplythis condition remove power from the time/temp switch for 15 seconds, or if display stays onTROUBLE SHOOTING GUIDE ELECTRIC OVENS Air Pressure Switch Switch, HeatThis normally open switch should close when the Temperature Controlas follows MODEL Main fan runs after Temperature Control LEADS ATTACHED TO THE TEMPERATUREWITH POWER OFF: remove the potentiometer leads from the temperature controlConveyor will not run MODEL 1151 200 VAC THREE PHASE 60 HZ TROUBLESHOOTING GUIDE ELECTRIC OVENRelay, Main Fan Mercury Contactor Heater Elements Oven heats with switch offMercury Contactor Intermittent HeatingSTEPPER MOTOR DRIVE Conveyor will not run of temperature sensors 12 VAC Power Supplyyellow wires, thermo red wire and 1 white wireexperienced, such as a rolling of IMPINGER II CONVEYOR OVEN REMOVAL, INSTALLATION, AND ADJUSTMENTRELAY, DPST 1.Shut off power at main breaker This is part of the burner blower motor assembly 1.Shut off power at main breakerTO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING MOTOR, BURNER BLOWERAIR PRESSURE SWITCH Page Page 1.Shut off power at main breaker 1.Shut off power at the main breakerSOLENOID VALVE 1.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 1.Remove gearmotor assembly see “GEARMOTOR” Above OPTICAL ENCODER ASSEMBLY7.To adjust optical encoder TACH. GENERATOR 1.Turn off power at main breakerD C MOTOR CONTROL BOARD 4.Reverse wires fastened to terminals A+ and A 1.Turn off power and remove conveyor5.Reverse wires fastened to terminals T1 and T2 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 BURNER ALARM - REPLACEMENT 1.Shut off power at main breakerMOTOR, BURNER BLOWER 2.Remove conveyorLETTER GENERAL –1100SERIESDESCRIPTION GENERAL 1100 SERIES BLOW UP 1136,1150,1151,1160 Thru1163 Page MODELS 1152 THRU CONTROL COMPARTMENT - FRONTLETTER DESCRIPTIONCONTROL COMPARTMENT – FRONT 1152-1158BLOW UP LETTER CONTROL COMPARTMENT – REARDESCRIPTION CONTROL COMPARTMENT – REAR BLOW UP MODELS CONTROL COMPARTMENT – REAR AND ABOVELETTER 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 MODELS 1152 THRU 1158 S/N 2011821 AND ABOVE CONTROL COMPARTMENT – REARLETTER 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