Lincoln Foodservice 1600-000-A, Service Manual

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Low Profile – 1600 Series Advantage Digital Service Manual – Domestic 4
TROUBLESHOOTING GUIDE
GAS OVENS
MODEL 1600-000-A NATURAL GAS 120 VAC. 60 HZ. 1 PHASE
MODEL 1601-000-A LP GAS 120 VAC. 60 HZ. 1 PHASE
NOTE: When checking components on left side of oven, be sure to check for proper connections in power
connector, (marked P.C. on schematic diagram) located inside motor cover.
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 the incoming voltage. Call
power co. if needed.
Power switch Check continuity between switch terminals. Replace switch as
needed.
Fuse, 10 Amp Check, replace if necessary.
Fuse holder Check, replace if necessary.
Fuse, 3 Amp Check, replace if necessary.
Fuse holder Check, replace if necessary.
Hi-limit thermostat(s),
control box
Check for voltage on both sides of the 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
Relay, oven power Check for 120 VAC to the relay coil. If voltage is not present,
Trace wiring back to the hi-limit thermostat. If voltage is present,
check to insure contacts are closing. Check for 120 VAC supplied
to terminal #2 of the relay. If voltage is not present at terminal #2,
trace wiring back to the 10 Amp fuse. Replace relay as needed.
Motor, main fan Check for opens, shorts or grounds. WITH POWER OFF: 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. Call power co. if needed.
Power switch Check continuity between switch terminals. Replace switch as
needed.
Fuse, 3 Amp Check, replace if necessary.
Fuse holder Check, replace if necessary.
Hi-limit thermostat(s),
control box
Check for voltage on both sides of the 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.
Cooling fan(s) 120 VAC should now be at the fan motor. If voltage is not
present, trace wiring back to hi-limit thermostat. Check motor 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. Call power co. if required.
Cooling fan
thermostat(s)
Check the cooling fan thermostat. (thermostat closes at 120
°
F
and opens at 100
°
F) With the cooling fan thermostat preheated,
check for continuity. If switch is open, replace thermostat.
Fuse, 3 Amp Check, replace if necessary.
Fuse holder Check, replace if necessary.
Hi-limit thermostat(s)
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