Graco 3A1705J important safety instructions T2AE, Deviation, T2BE

					Troubleshooting
Error	Error	Type	Name	Cause	Solution
Code	Position
T2AE	Heat	DEVIATION	Low Temperature	Recirculating material	Recirculate material
T2BE	Exchanger		Hx A	to heat with drum feed	using Jog mode for heat
			Low Temperature	pumps only.	exchanger heating.
				Coolant circulation pump	Check for 240 VAC on
			Hx B	not working.	pump. If there is the correct
					voltage, replace circulation
					pump. See system repair
					manual.
				Air lock in circulation	Check for coolant flow in
				pump.	sight glass.
				Loose or incorrect wiring	See wiring schematics, in
				connections.	the system repair manual,
					and verify coolant valve
					connections. Check coolant
					valve harness and verify
					voltage is 11–13 volts at
					coolant valve connectors.
				No voltage to coil of	Turn on the manual valve
				valve.	switch (MV), on the load
					center (PE), to manually turn
					on the solenoids and see if
					the temperature rises. If not,
					check voltage output on J6
					connector on the load center
					and ensure the LEDS are
					on. See load center wiring
					in system repair manual.
					Follow Load Center
					Diagnostics instructions
					in system repair manual. If
					necessary, replace the load
					center board.
					If voltage is present,
					measure the resistance
					of the coil, it should be
					approximately 12.5 Ω, if coil
					is open replace coil.
					If voltage is present, test
					the coil with screwdriver.
					The screwdriver should
					magnetically stick inside
					the coil. If screwdriver
					sticks, then the coil is
					good. Replace the plunger
					on valve or replace the
					complete valve assembly.
					See system repair manual.

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