Lincoln 1400 Series ユーザーズマニュアル

Impinger I – 1400 Series Advantage Service Manual – Dom & Int’l 

11

 

 

IMPINGER ADVANTAGE SERIES 

 
SYMPTOM 

POSSIBLE CAUSE 

EVALUATION 

Incoming Power Supply 

Check breakers, reset if required. Call Power Co. 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 

Check and/or Replace 

Control Fuse 

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 (120VAC). Check for supply voltage to 
relay contacts. Visually check for contact pull-in. 

Fan Motor 

Check for opens, shorts, or ground. WITH POWER 
OFF: Turn Fan Blade to check for locked rotor. 

Oven fan will not run 
NOTE: 

Capacitor 

Check for opens, shorts, or grounds. 

No control box 
cooling 

Main Fan Relay 

Check for power to main fan relay. Visually check for 
contact pull-in. Axial Cooling Fan. Check for power 
(120 VAC or 240 VAC, check specific model) to 
cooling fan. If voltage is present at the fan motor and 
the fan does not run, replace fan assembly. 

Incoming Power Supply 

Check breakers/Reset if needed. Check for incoming 
power  at cooling  fan thermostat. 

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. 

No automatic control 
box  cooling 

Axial Cooling Fan 

WITH POWER OFF: check for locked rotor. Check 
for proper voltage to the cooling fan, if present and 
fan does not run, replace the fan. 

Control box  cooling 
fan continues to run 

Cooling Fan Thermostat 

See "Cooling Fan Thermostat" (NOTE: Thermostat 
will  remain closed if control box  temperature 
exceeds 120°F) 

Oven will not heat 
Model 1450-1451 

Gas Supply 

Check for adequate gas supply to oven 

Manual Gas Shut-off Valve 

Check to see that manual shut-off valve is open 

 

Main Oven Fan 

Check if main oven fan is operating. If not, refer to 
"Oven fan will not run" on page 11. 

Centrifugal Switch 

Check for 120 VAC on both sides of (Main Fan) 
switch. If voltage present on one side only, and motor 
is running, replace motor. 

Transformer, 24 VAC 

Check for 120 VAC to primary of transformer. Check 
for 24 VAC from secondary of transformer. If there is 
primary voltage, but no secondary voltage, replace 
transformer. 

For 1456, 1457, 
1475, 1476  See 
Page 14. 

Burner Blower Motor 

Check for 120 VAC supply to burner blower motor. If 
120 VAC is present and motor does not run, replace 
motor. WITH POWER OFF: turn blower wheel to 
check for locked rotor.