Lincoln 1600 service manual Troubleshooting Guide, Gas Ovens, Symptom, Possible Cause, Evaluation

TROUBLESHOOTING GUIDE

GAS OVENS

MODEL 1600-000-A / NATURAL GAS / 120 VAC / 60 HZ / 1 PHASE

MODEL 1601-000-A / L.P. GAS / 120 VAC / 60 HZ / 1 PHASE

NOTE: When checking components on left side of unit, 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	Check breakers, reset if required. Check power plug to be sure
	Supply	it is firmly in receptacle. Measure the incoming power/call
		power company if needed.
	Main Fan Switch	Check continuity between switch terminals.
	Fuse, 10 Amp	Check, replace if necessary.
	Fuse Holder	Check, replace if necessary.
	Fuse 3A	Check, replace if necessary.
	Fuse holder	Check, replace if necessary.
	Hi Limit Thermostat(s)	Check for voltage on both sides of the switch. Terminals are
	Control Box	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.
	Oven Power Relay	Check for 120 VAC to the relay coil. If voltage is not present,
		trace wiring back to the control box hi-limit. If voltage is
		present, check to insure contacts are closing. Check for 120
		VAC supplied to terminal #2 of the relay.
	Main Fan Motor	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 main circuit breakers, reset if required, call power
		company if needed.
	Main Fan Switch	Check continuity between switch terminals
	Fuse 3 amp.	Check, replace if necessary.
	Fuse Holder	Check, replace if necessary.
	Hi Limit Thermostat(s)	Check for voltage on both sides of the switch. Terminals are
	Control Box	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 present,
		check motors for shorts or opens. WITH POWER OFF:
		Check for locked rotor.
No automatic control	Incoming Power	Check circuit breakers, reset if required. Call the power
box cooling	Supply	company if needed.
	Cooling Fan	Check the cooling fan thermostat. (Thermostat closes at
	Thermostat(s)	120°F and opens at 100°F). With the cooling fan thermostat
		preheated, check for continuity. If switch is open, replace.
	Fuse, 3 amp	Check, replace if necessary
	Fuse Holder	Check, replace if necessary
	Hi Limit Thermostat(s)	Check for voltage on both sides of the switch. Terminals are
	Control Box	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.

4 Low Profile – 1600-000-A Advantage Series Service Manual – Domestic