Lincoln Series 1000, Series 1200 service manual Troubleshooting Guide 1000 & 1200 / GAS Ovens

Page 26

TROUBLESHOOTING GUIDE 1000 & 1200 / GAS OVENS

SYMPTOM

POSSIBLE CAUSE

EVALUATION

Oven fan will not run

Incoming Power Supply

Check breakers/ Reset if required / Call Power Co.

NOTE:

 

if 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 relay coil (120 VAC). Check for 208/240 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 the cool down

 

 

thermostat pre-heated, check for continuity. If

 

 

switch is open, replace.

No Control Box

Main Fan Relay

Check for power to Main Fan Relay. Visually check

Cooling(For ovens

 

for contact pull in.

equipped with Control

 

 

Box Cooling Fan)

(Export Ovens)

(For ovens equipped with a control circuit step-

 

 

Axial Cooling Fan

down transformer, the supply voltage for the

NOTE:

 

cooling fan is 240 VAC.)

 

WITH POWER OFF: 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.

No automatic control

Incoming Power Supply

Check breakers/Reset if needed. Check for

box cooling (For ovens

 

incoming power (120 VAC)at cooling fan

equipped with control

 

thermostat.

box cooling fan)

Cooling Fan Thermostat

Check cooling fan thermostat (thermostat closes at

 

 

120°F and opens at 100°F). With cooling fan

 

 

thermostat pre-heated, check for continuity. If

 

 

switch is open, replace.

 

Axial Cooling Fan

Check for 120 VAC to cooling fan, if present and

 

 

fan does not run, replace fan.

Control box cooling fan

Cooling Fan Thermostat

See "Cooling Fan Thermostat"

continues to run

 

 

Transformer, 24 VAC

Check for 120 VAC to primary

Check for adequate gas supply to oven.

 

of transformer. Check for 24

 

 

VAC from secondary of

 

 

transformer. If there is

 

 

primary voltage, but no

 

 

secondary voltage, replace

 

 

transformer.

 

 

Manual Gas Shut-off Valve

Check to see that manual shut-off valve is open.

 

Fan Switch

Check to see that fan switch is "on".

 

Main Oven Fan

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

 

 

"Oven fan will not run". Page 26.

26

Impinger I -–1000 Series Service Manual - International

Image 26
Contents Impinger Conveyor Ovens Table of Contents Conveyor Drive Sequence of Operations 1002/1003Burner Circuit 100 toSequence of Operations Heat Circuit TemperatureSequence of Operations 1028 / 1029 / 1228 ControlTime Temp Sequence of Opertions TIME/TEMPSequence of Operations / 1033, 1034, 1046 TRANSFORMER12.6V Sequence of Operations 1042 / 1043 / 1242 Model 1242 240V 50HZ Natural GAS/DUAL BeltTIME/TEMP Schematic / 1002 Schematic / 1006 to Serial Numbers Q14279 Schematic / 1028, 1029, S/N Q19071 & below Schematic / 1028, 1029, S/N Q19078 & Above Schematic / 1030, to S/N Q17170 Schematic / 1030, S/N Q17171 & Above Schematic / 1032. S/N Q19077 & below Schematic / 1032, S/N Q19078 & Above Schematic / 1033, 1034, 1046 Schematic / 1042, 1043, S/N Q14279 & below Schematic / 1042, 1043, S/N Q14280 & Above Schematic / 1228 , S/N Q14790 & below Schematic / 1228, 1229, S/N Q14791 & Above Schematic / 1242 Troubleshooting Guide 1000 & 1200 / GAS Ovens Symptom Possible Cause EvaluationIgnition Control For ovens withJohnson Controls Honeywell IgnitionControl Mechanical Temperature ControlFlameFor ovens with ThermostatCode Model 1030 Symption Possible Cause EvualationPage Page Page Page Page Page Page Troubleshooting Guide 1000 & 1200 Series / Electric Ovens Page Page Page Page Page Page Troubleshooting / GAS Ovens 1033, 1034, 1046 Page Page Page Page Page Page CAPACITOR, Motor REMOVAL, Installation & AdjustmentsMOTOR, Main FAN FAN, MainRELAY, D.P.S.T Cool Down SwitchAbove GAS Above Electric Cooling FAN, Control BOXBurner Blower Motor Blower WHEEL, Burner To Remove the Blower Wheel for Periodic CleaningAIR Pressure Switch Manifold Pressure Adjustment Burner AssemblyManifold PRESSURE-ADJUSTMENT GAS Control ValveTemperature Control Potentiometer Replacement Temperature Control Valve Robert ShawTemperature Control Board Solenoid ValveMercury Contactor THERMOCOUPLE- ReplacementThermocouple Measurement Chart Heating ElementIgnition Control Flame Sensor 24V GNDBurner Light 24 VAC GAS Ovens Burner IgnitorTransformer 120/24 VAC Heat Light 125 VAC Electric OvensMain Orifice Burner Conveyor Motor Replacement Bodine SNConveyor Motor Replacement Baldor 1000 Series SN 4390 Potentiometer Conveyor Speed ControlOptical Encoder Assembly Coupling and Encoder DiscMotor Control Board Calibration TACH. GeneratorConveyor Motor Control Board SN 100 to 4389 Bodine SystemMotor Control Board Style 1 Control Board AdjustmentREG MIN MAX Style 2 and Style 3 Control Board Adjustment StyleStyle DIP Switches Control Switch Position OFF BEARING, Conveyor Reversing Conveyor DirectionMini Circuit Breaker Drive ENDTRANSFORMER-STEPPER Motor Control Hall Effect Sensor ReplacementBEARING, Conveyor SN 2164 and Above OLD StyleOven Temperature Temperature Gauge ReplacementThermistor Replacement TRANSFORMER, TIME/TEMP. DisplayType OFF Switch SettingsALL 1000 & 1200 Series Ovens SWITCH, DISPLAY, SET Procedure for USE of TIME/TEMP. SimulatorSwitch Replacement FAN Switch Update Dip SwitchSwitch Replacement FAN, HEAT, Conveyor GAS Valve Replacement and Adjustments Spark Generator Replacement Ignition Control ReplacementHigh Limit Thermostat Replacement Solenoid Valve ReplacementIgniter Sensor Assembly Replacement Burner Alarm Light ReplacementPilot Light 220V Replacement Burner Blower Motor ReplacementRELAY, GAS Control Replacement Model 1046,1047 Relay ASSEMBLY, Burner Blower Motor ReplacementTemperature Control Replacement Time Delay RELAY, 20 Minute ReplacementParts / Model Series 1000 & 1200 General Letter DescriptionBlow UP / 1000, 1200 General Parts / Model 1002-1003 , S/N 2584 to Blow UP / 1002, 1003 S/N 2584 to Parts / Model 1002-1003, S/N 4390 & UP SeeBlow UP / 1002, 1003 S/N 4390 & Above Parts / Model SeeBlow UP Parts Blow UP / 1028, 1029 PARTS/ Model Blow UP Parts / 1042 BLOW-UP / 1042 Parts / 1033, 1034, 1046 BLOW-UP / 1033, 1034, 1046 Parts Blow UP / 1228 Parts / 1242 Blow UP / 1242 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 Parts / Series 1200 Conveyor Control Blow UP / Series 1200 Conveyor Control Parts / Series 1200 Conveyor Blow UP / Series 1200 Conveyor 112

Series 1000, Series 1200 specifications

The Lincoln Series 1200 and Series 1000 are two distinguished models in the range of Lincoln Electric welding machines, epitomizing quality, versatility, and advanced technology for both industrial and residential welding applications.

The Lincoln Series 1200 is renowned for its robust build and high-performance capabilities. One of its main features is the ability to perform both MIG (Metal Inert Gas) and stick welding processes, making it a versatile option for various welding requirements. It incorporates an intuitive control panel that allows for easy settings adjustments, ensuring operators can swiftly adapt to different materials and thicknesses. The Series 1200 is equipped with a powerful drive system to provide smooth wire feeding, minimizing downtime due to jams or misfeeds. Additionally, its high-duty cycle support allows continuous operation, making it an ideal choice for professional welders and fabrication shops.

In terms of technology, the Series 1200 employs advanced inverter technology that enhances energy efficiency while reducing the machine’s overall weight. This results in portability without compromising power, making it a practical choice for on-site tasks. Moreover, the machine features an automatic voltage adjustment that optimizes performance based on the input voltage, ensuring reliable operation even under fluctuating power conditions.

On the other hand, the Lincoln Series 1000 is specifically designed for entry-level users and small projects. It shines with its user-friendly interface, which simplifies the welding process for beginners. This model typically includes pre-set parameters and an easy-to-read display, enabling novice operators to achieve excellent welds with minimal experience. Despite its entry-level focus, the Series 1000 does not skimp on performance, offering dependable results across various materials.

Both the Series 1200 and Series 1000 incorporate safety features, including thermal overload protection, ensuring that users can operate the machines with peace of mind. Their durable construction allows for prolonged use in tough work environments without sacrificing reliability.

In conclusion, the Lincoln Series 1200 and Series 1000 cater to a wide range of welding needs, from professional applications to home projects. Their respective features and technologies present options that can fit various skill levels while delivering exceptional welding performance and longevity. Whether you are a seasoned professional or a hobbyist, Lincoln Electric provides reliable solutions to meet your welding requirements.