Graco 3A0868G Alarm and Description Cause Solution SFA1 or SFB1, PreMix Error, SHA1 or SHB1

System Errors

Alarm and Description	Cause	Solution
SFA1 or SFB1	Gun, line, or valve is plugged or stuck.	Check components and clean, repair,
PreMix Error		or replace as necessary.
In systems with a gun flush
	Pump(s) not working or out of fluid.	Refill fluid supply. Check and repair
box, insufficient quantity of		pump. See pump manual for repair
resin/color (SFA1) or catalyst		procedures and replacement parts.
(SFB1) is detected during the
	Air lines or solenoids are plumbed incor-	Check air line path. See System
10-second PreMix sequence.
	rectly or solenoids are not working.	Pneumatic Schematic, page 66 or
SHA1 or SHB1		67. Verify that solenoid is working.
	Flow rate is too low.	Increase fluid pressure.
PreFill Error
Total PreFill sequence volume
is not reached for color
(SHA1) or catalyst (SHB1)
during the 5-minute PreFill
sequence.
SM	Gun Flush Box is not triggering gun.	Verify trigger is being pulled. Adjust
MixFill Start Error		as needed.
In systems with a gun flush
	Line or gun is plugged or restricted.	Clean line, tip, or filter.
box, insufficient volume of
	Flow rate is too low.	Increase fluid pressure or decrease
mixed material is detected
		restriction.
during the 10-second mixed fill
	Valve is stuck.	Clean valve or verify that solenoid is
sequence.
		triggering valve properly.
SN
MixFill Complete Error
Insufficient volume of mixed
material is detected during the
5-minute mixed fill sequence.
QPD1 or QPD2	Have not sprayed enough volume to keep	Purge the mixed material line. See
Potlife Error	fresh mixed fluid in the mix manifold, hose,	page 33.
Potlife has been exceeded for	and gun.	Check that hose length and diameter
the mixed material for Gun 1
(QPD1) or Gun 2 (QPD2).		have been entered correctly. See
		Configure 2 (Screen 19), page 43.
		Spray the required volume to restart
		the potlife timer.

3A0868G 55