Lincoln 1200, 1400 service manual Troubleshooting Guide, Electric Ovens Model Series 1000

Page 25

TROUBLESHOOTING GUIDE

 

ELECTRIC OVENS MODEL SERIES 1000 & 1200

 

 

 

SYMPTOM

POSSIBLE CAUSE

EVALUATION

Oven fan will not run

Incoming Power Supply

Check breakers/Reset if required/ Call Power Co. if

NOTE:

 

needed.

(Export Ovens)

For some export ovens, there is a control circuit

 

 

step-down transformer. This transformer steps

 

 

down supply voltage to 120 VAC. If main fan will

 

 

not run, the secondary of this transformer must be

 

 

checked for 120 VAC output. Check specific oven

 

 

model schematic for circuit location.

 

Oven Fan Fuse(s)

Check and/or Replace

 

Fuse Holder

Check and/or Replace

 

Fan Switch

Check continuity between switch terminals.

 

Main Relay

Check continuity to 120 VAC coil. Check for power

 

 

to the relay coil (120 VAC). Check for 208/220/240

 

 

VAC to relay terminals. Visually check for contact

 

 

pull-in

 

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 Main Fan Cool

Cool Down Thermostat

Check cool down thermostat (thermostat closes at

Down

 

160°F and opens at 140°F). Check for power (120

 

 

VAC) at cool down thermostat. With cool down

 

 

thermostat pre-heated, check for continuity. If

 

 

switch is open, replace.

No control box cooling

Main Fan Relay

Check for power to main fan relay. Visually check

 

 

for contact pull in.

 

Axial Cooling Fan

WITH POWER OFF: turn the fan blade to check for

 

 

locked rotor. Check for power (120 VAC) to cooling

 

 

fan. If 120 VAC is present at the fan motor and the

 

 

fan does not run, replace fan assembly.

Oven will not heat

Main Oven Fan

Check if main oven fan is operating. If not, refer to

 

 

"Oven fan will not run."

 

Heat Switch

Check for continuity between switch terminals with

 

 

switch on. Replace if defective.

 

Air Pressure Switch

Check for 120 VAC on both sides of switch. If

 

 

voltage present on one side only, check for air tube

 

 

blockage, adjust air switch. If above fails, replace

 

 

air pressure switch.

 

Hi Limit Thermostat

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 dial setting, replace

NOTE:

 

thermostat (rated at 190°F).

Hi Limit Thermostat

Terminals are normally closed. If open, reset and

 

(Model 1032)

test oven for proper operation. If thermostat will not

 

 

hold for maximum oven temperature, and oven is

 

 

not exceeding temperature dial setting. Replace

 

 

the thermostat. Check for proper location of

 

 

sensing bulb in its spring holder. If hi-limit is still

 

 

tripping, replace (rated for 368°C).

 

3 Amp Temperature Control

Check and/or Replace

 

Fuse

 

 

Fuseholder

Check and/or replace.

Impinger I -–1000 Series Service Manual - Domestic

25

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Contents Impinger Conveyor Ovens Table of Contents Model 1200 120/230 VAC 60HZ Natural GAS/DUAL Belt Power SupplyModel 1204 120/230 VAC 60HZ Natural GAS/DUAL Belt Control BOX AutoTime Temp Display TemperatureHeat Circuit ControlTIME/TEMP Display Conveyor DriveModel 1240 120/230 VAC 60HZ Natural GAS/DUAL Belt TIME/TEMP Time Temp Display Schematic / 1000 Schematic / 1004 Schematic / 1022, 1023 S/N Q19077 & below Schematic / 1022, 1023 S/N Q19078 & Above Schematic / 1040, 1041 S/N Q14279 & below Schematic / 1040, 1041 S/N Q14280 & Above Schematic / 1200 Schematic / 1202, 1203 S/N Q14790 & below Schematic / 1202, 1203 S/N Q14791 & Above Schematic / 1204 Schematic / 1240, 1241 S/N Q14279 & below Schematic / 1240, 1241 S/N Q14280 & Above Symptom Possible Cause Evaluation Troubleshooting Guide 1000GAS Ovens Johnson Controls For ovens withIgnition Control Honeywell IgnitionControl Code Page Electric Ovens Model Series 1000 Troubleshooting GuidePage Page Page Page Page Page MOTOR, Main FAN REMOVAL, Installation & AdjustmentsCAPACITOR, Motor FAN, MainAbove GAS Above Electric Cool Down SwitchFAN Spider FAN HUB Cone RELAY, D.P.S.TBurner Blower Motor THERMOSTAT, Cooling FANAIR Pressure Switch To Remove the Blower Wheel for Periodic CleaningBlower WHEEL, Burner Manifold PRESSURE-ADJUSTMENT Burner AssemblyGAS Control Valve Temperature Control Valve Robert Shaw Manifold Pressure AdjustmentTemperature Control Board Solenoid ValveTHERMOCOUPLE- Replacement Temperature Control Potentiometer ReplacementThermocouple Measurement Chart Mercury ContactorIgnition Control Heating Element24V GND Burner Ignitor Flame SensorTransformer 120/24 VAC Burner Light 24 VAC GAS OvensPilot Orifice Burner Conveyor Motor Replacement Bodine SNMain Orifice Burner Potentiometer Conveyor Speed ControlSeries SN 4390 Conveyor Motor Replacement Baldor 1000 Series SN 4390Coupling and Encoder Disc TACH. Generator Optical Encoder AssemblyConveyor Motor Control Board Motor Control Board CalibrationREG MIN MAX Style 2 and Style 3 Control Board Adjustment Style 1 Control Board AdjustmentMotor Control Board StyleStyle DIP Switches Control Switch Position OFF Mini Circuit Breaker Reversing Conveyor DirectionBEARING, Conveyor Drive ENDBEARING, Conveyor SN 2164 and Above Hall Effect Sensor ReplacementTRANSFORMER-STEPPER Motor Control OLD StyleThermistor Replacement Temperature Gauge ReplacementOven Temperature TRANSFORMER, TIME/TEMP. DisplayALL 1000 & 1200 Series Ovens Switch SettingsType OFF Bottom of Time Temp Display SWITCH, DISPLAY, SETSwitch Replacement FAN, HEAT, Conveyor Dip SwitchSwitch Replacement FAN Switch Update GAS Valve Replacement and Adjustments High Limit Thermostat Replacement Ignition Control ReplacementSpark Generator Replacement Solenoid Valve ReplacementPilot Light 220V Replacement Burner Alarm Light ReplacementIgniter Sensor Assembly Replacement Burner Blower Motor ReplacementTemperature Control Replacement Relay ASSEMBLY, Burner Blower Motor ReplacementRELAY, GAS Control Replacement Model 1046,1047 Time Delay RELAY, 20 Minute ReplacementThis page Intentionally Left Blank Letter Description Parts / Model Series 1000 & 1200 GeneralBlow UP / 1000, 1200 General Parts / Access Door & 1050 Door Blow UP / Access Door & 1050 Door Parts / Model 1000,1001,1050,1051,1004, &1005 S/N 100 to Blow UP / 1000, 1001, 1050, 1051, 1004, & 1005 S/N 100 to Parts / Model 1000,1001,1004, and 1005 S/N 4390 & Above Blow UP 1000, 1001, 1004, 1005 S/N 4390 & Above Parts Blow UP / 1022 Tooth Sprocket S/N 4390 to Q14973 Blow UP / 1040 Parts / 1200, 1201, 1204 Blow UP / 1200, 1201, 1204 Parts Blow UP / 1202 Electronic Temperature Control Blow UP / 1240 Parts / Oven Back GAS Blow UP / Oven Back GAS Parts / Oven BACK- Electric Blow UP / Oven Back Electric Parts / Conveyor Motor Assembly S/N 4390 & Above Blow UP / Conveyor Motor Assembly S/N 4390 & Above Parts / Series 1000 Conveyor Blow UP / Series 1000 Conveyor See Parts / Series 1200 Conveyor ControlBlow UP / Series 1200 Conveyor Control Parts / Series 1200 Conveyor Blow UP / Series 1200 Conveyor This page intentionally left blank This page intentionally left blank
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1000, 1200, 1400 specifications

The Lincoln series, particularly the models Lincoln 1000, 1200, and 1400, represents an evolution in luxury vehicles, combining elegance with cutting-edge technology. Each model builds upon its predecessor while introducing features that enhance performance, comfort, and safety.

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