Lincoln 3262-2, 3270-2, 3240-2 service manual Troubleshooting Guide

TROUBLESHOOTING GUIDE

3240-2*	120/230VAC	60 HZ.	1 PHASE
3240-2*	120/230VAC	60 HZ.	3 PHASE
3262-2*	120/230VAC	60 HZ.	1 PHASE
3262-2*	120/230VAC	60 HZ.	3 PHASE
3270-2*	120/230VAC	60 HZ.	1 PHASE
3270-2*	120/230VAC	60 HZ.	3 PHASE

*NOTE:

Model number ending in TS indicates top belt is split belt

Model number ending in SB indicates bottom belt is split belt

Model number ending in SS indicates both belts are split belts

SYMPTOM	POSSIBLE CAUSE	EVALUATION
Oven fan will not run	Incoming power supply	Check circuit breakers. Reset if required. Call power
		co. if needed.
	Fuse, 2 Amp, control (F7)	Check, replace if necessary.
	Fuse holder	Check, replace if necessary.
	Switch, oven fan	Check continuity between switch terminals. Replace
		switch as needed.
	30 minute time delay relay	Check for supply voltage to 30 minute time delay relay
		at terminals #2 and #3. If no voltage is present, trace
		wiring back to main power switch. If there is supply
		voltage at terminals #2 and #3, check for output voltage
		at terminals #1 and #3. If there is incoming voltage but
		no output voltage, and the main power switch is on,
		replace the 30 minute time delay relay.
	Relay, main fan	Check for supply voltage to relay contacts, if no voltage
		is present, trace wiring back to power supply. Check for
		120VAC to the coil of the main fan relay. If no voltage is
		present, trace wiring back to the 30 minute time delay
		relay, check to be sure that the Overload Protector
		contacts are closed. If contacts are open, see
		“Overload Protector” below. If voltage is present, check
		to insure relay contacts are closing. Replace relay as
		needed.
	Overload protector, main fan	Check to be sure overload contacts are closed. If not
		closed, re-set overload. If contacts do not close,
		replace overload protector. If contacts close, test for
		proper operation. If the overload contacts do not stay
		closed, and the amperage is below the overload
		setting, replace the overload protector.
		3240 should be set at 13A
		3260 should be set at 18A
		3270 should be set at 18A
	Main fan motor	Check for supply voltage at motor. If no voltage is
		present, trace wiring back to the overload protector.
		WITH POWER OFF: Check for opens, shorts or
		grounds. Turn motor shaft to check for locked rotor.
	Capacitor	Check for shorts or grounds.
		WARNING: Capacitor has a stored charge, discharge
		before testing.
	Drive belt	Check for loose or broken drive belt. Adjust motor for
		proper belt tension (maximum of 3/8-inch deflection), or
		replace drive belt as needed.
	Bearings, Fan shaft	Check for any damage or excessive wear on the shaft

6 Impinger X2 – Analog Service Manual – Dom & Int’l