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

Page 26
Image 26
Lincoln Series 1000, Series 1200 Troubleshooting Guide 1000 & 1200 / GAS Ovens, Symptom Possible Cause Evaluation

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.

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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.