Graco 334466A Sprayer does not run at all Check transducer or transducer, Connections, Secure

Troubleshooting

Problem	What to Check	How to check
Sprayer does not run at all	Check transducer or transducer	Make sure there is no pressure in the
AND	connections	system (see Pressure Relief
		Procedure, page 13). Check fluid
Display shows E=02
		path for clogs, such as clogged filter.
OR		Use airless paint spray hose with no
Control board status light blinks 2		metal braid. A small hose or metal
		braid hose may result in
times repeatedly
		high-pressure spikes.
		Turn ON/OFF switch OFF and
		disconnect power to sprayer.
		Check transducer and connections to
		control board.
		Disconnect transducer from control
		board socket. Check that transducer
		and control board contacts are clean
		and secure.
		Reconnect transducer to control
		board socket. Connect power, turn
		ON/OFF switch ON and control knob
		1/2 turn clockwise. If sprayer does not
		run properly, turn ON/OFF switch
		OFF and go to next step.
		Install new transducer. Connect
		power, turn ON/OFF switch ON and
		control knob 1/2 turn clockwise.
		Replace control board if sprayer does
		not run properly.
Sprayer does not run at all	Check transducer or transducer	Turn ON/OFF switch OFF and
AND	connections (control board is not	disconnect power to sprayer.
	detecting a pressure signal).	Check transducer and connections to
Display shows E=03
		control board.
OR
		Disconnect transducer from control
Control board status light blinks 3
		board socket. Check to see if
times repeatedly		transducer and control board contacts
		are clean and secure.
		Reconnect transducer to control
		board socket. Connect power, turn
		ON/OFF switch ON and control knob
		to 1/2 turn clockwise. If sprayer does
		not run, turn ON/OFF switch OFF and
		go to next step.
		Connect a confirmed working
		transducer to control board socket.
		Turn ON/OFF switch ON and control
		knob to 1/2 turn clockwise. If sprayer
		runs, install new transducer. Replace
		control board if sprayer does not run.

34 334466A