Lincoln Impinger II - Advantage Series - Manual (Page 13)

Impinger II –Advantage Service Manual - Domestic 13
TROUBLESHOOTING GUIDE / ELECTRIC OVENS
MODEL 1130-000-A 208 VAC SINGLE PHASE 60 HZ
MODEL 1131-000-A 240 VAC SINGLE PHASE 60 HZ
MODEL 1132-000-A 208 VAC THREE PHASE 60 HZ
MODEL 1133-000-A 240 VAC THREE PHASE 60 HZ
REFER TO PROPER SCHEMATIC FOR IDENTIFIED COMPONENTS
SYMPTOM POSSIBLE CAUSE EVALUATION
Oven fan will not run Incoming Power Supply Check circuit breakers. Rest if required. Call
power company in needed.
Fuses, 10 Amp, Fan and
Controls Check, replace if necessary.
Fuseholder Check, replace if necessary.
Control Box High Limit
Thermostat
Terminals are normally closed, but open at 140°F ±
5°F (60°C ± 2.8°C). Check for over heating and
reset thermostat. Test for proper operation. If it will
not reset and hold, then replace.
Switch, Main Fan Check for continuity between switch terminals.
Main 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 control box cooling Check for main fan operation. If not operating, refer
to "Oven Fan Will Not Run".
Cooling Fan Motor 208/240 VAC should be present at the fan motor. If
voltage is present, check for opens or shorts.
WITH POWER OFF: Check for locked rotor of the
fan motor.
No automatic control
box cooling Incoming Power Supply Check circuit breakers. Reset if required. Call
power company if needed.
Thermostat, Cooling Fan This normally open thermostat should close when
the temperature in the control box reaches 120°F
(48.9°C). If thermostat does to close, replace.
Cooling Fan Motor 208/240 VAC should be present at the fan motor. If
voltage is present, check for opens or short. WITH
POWER OFF: Check for locked rotor of the fan
motor.
Control box cooling fan
continues to run Thermostat, Cooling Fan This normally open thermostat should close at
120°F (48.9°C) and reopen at 100°F (37.8°C).
Oven will not heat Main Fan Motor Check for main fan operation. If it is not operating,
refer to "Oven fan will not run".
Air Pressure Switch This normally open switch should close when the
main fan is activated. Adjust if necessary (Refer to
page 23). Replace if defective.
Hi-Limit Thermostat Oven
Cavity 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, check for
proper location of capillary bulb in its spring holder.
If above checks okay, replace hi-limit thermostat.