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

Page 25

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

Page 24 Page 26
Image 25
Page 24 Page 26
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 TROUBLE SHOOTING GUIDE GAS OVENSNo main fan cool down switch. If switch is closed and voltage Burner Switchpresent on one side only, replace switch Gas Pressure SwitchCheck for proper line voltage to Flame will not stay on Power Supply Ignition ControlFlame Sensor Pilot lamp is on, butthen 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 this condition remove power from the time/temp surge in the incoming power lines. To eliminateswitch for 15 seconds, or if display stays on required. This should eliminate the problem. IfTROUBLE SHOOTING GUIDE ELECTRIC OVENS Air Pressure Switch Switch, HeatThis normally open switch should close when the adjustment knob to maximum temperature positionas follows MODEL Main fan runs after maintenance. Also, most of the problems WITH POWER OFF: To check resistance of thefor proper readings. If these readings are not achieved, replace thermocoupleConveyor will not run MODEL 1151 200 VAC THREE PHASE 60 HZ TROUBLESHOOTING GUIDE ELECTRIC OVENRelay, Main Fan Conveyor will not run S/N 2011383 and above Mercury Contactor Heater ElementsREFER TO PAGE REFER TO PAGE REFER TO PAGE REFER TO PAGE REFER TO PAGE 43STEPPER MOTOR DRIVE Conveyor will not run yellow wires, thermo 12 VAC Power Supplyred wire and 1 white wire Thermocouple Probe Power Supplyexperienced, such as a rolling of IMPINGER II CONVEYOR OVEN REMOVAL, INSTALLATION, AND ADJUSTMENTRELAY, DPST 1.Shut off power at main breaker TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING This is part of the burner blower motor assemblyMOTOR, BURNER BLOWER TO REMOVE BLOWER MOTORAIR PRESSURE SWITCH Page Page SOLENOID VALVE 1.Shut off power at main breaker 1.Shut off power at the main breaker5.Loosen pipe union in piping assembly HEATING ELEMENTS 1.Shut off power at main breakerIGNITION CONTROL 1.Shut off power at main breaker 2.Shut off gas at main line to the oven ORIFICE, MAIN BURNER4.Remove control compartment covers 5.Loosen 4 nuts holding manifold to burner capLAMP, 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 OVEN TEMPERATURE SWITCH, DISPLAY, SETOHMS 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 4.Remove conveyor gear motor BURNER ALARM - REPLACEMENT8.Remove top control compartment brace 10.Assemble in reverse orderLETTER 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 AND ABOVE MODELS 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 OVEN BACK ASSEMBLY – 1100 SERIES OVEN BACK ASSEMBLY – 1100 SERIES BLOW UP GEARMOTOR ASSEMBLY – 1100 SERIES GEARMOTOR ASSEMBLY – 1100 SERIES BLOW UP CONVEYOR/DOOR – 1100 SERIES CONVEYOR/DOOR – 1100 SERIES BLOW UP This page intentionally left blank This page intentionally left blank
Top Page Image Contents