Lincoln 1133-000-A - Manual (Page 7)

Impinger II – Advantage Digital Service Manual - Domestic 7
TROUBLESHOOTING GUIDE
GAS OVENS
SERIAL NUMBER 2038616 AND ABOVE
(OVENS WITH PUSH BUTTON CONTROLS)
MODEL 1116-000-A NAT. GAS 120VAC 60 HZ.
MODEL 1117-000-A LP GAS 120VAC 60 HZ.
SYMPTOM POSSIBLE CAUSE EVALUATION
Oven fan will not run Incoming power supply Check circuit breakers, reset if required. Check
power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if
needed.
Fuse, 10 Amp Check, replace if necessary.
Fuse holder Check, replace if necessary.
Hi-limit thermostat,
control box Check for voltage on both sides of switch.
Terminals are normally closed. If open, reset and
test oven for proper operation. If thermostat will
not hold, and control box temperature is not
exceeding 140
°F (60°C), replace thermostat.
Switch, main power Check continuity between switch terminals.
Replace switch as needed.
Main fan motor Check for 120VAC at motor. If no voltage is
present, trace wiring back to main power switch.
WITH POWER OFF: Check for opens, shorts or
grounds. Turn fan blade to check for locked rotor.
Capacitor Check for shorts or grounds.
WARNING: Capacitor has a stored charge,
discharge before testing.
No control box cooling Incoming power Check circuit breakers, reset if required. Check
power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if
needed.
Switch, main power Check continuity between switch terminals.
Replace switch as needed.
Cooling fan Check for 120VAC at cooling fan. If no voltage is
present, trace wiring back to power switch. If
voltage is present, and motor does not run, check
for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
No automatic control box
cooling Incoming power supply Check circuit breakers, reset if required. Check
power plug to be sure it is firmly in receptacle.
Measure incoming power, call power co. if
needed.
Cooling fan thermostat Check the cooling fan thermostat. (Thermostat
closes at 120
°F and opens at 100°F). With the
cooling fan thermostat pre-heated, check for
continuity. If switch is open, replace cooling fan
thermostat.
Cooling fan Check for 120VAC at cooling fan. If no voltage is
present, trace wiring back to cooling fan
thermostat. If voltage is present, and motor does
not run, check for opens, shorts or grounds.
WITH POWER OFF: Check for locked rotor.
Oven will not heat Gas supply Check for adequate gas supply to oven.
Manual gas shut off valve. Check to see that the manual gas shut off valve is
open. Also check flexible gas line connection for
any damage.