Alarms

Code

Alarm

Active

Problem

Cause

 

 

 

 

 

 

 

 

 

 

 

Operating Errors

 

 

 

 

(continued)

 

 

 

22

High Ratio (units with

Spray

Mix ratio higher than

Flow rate too high

 

meter[s] only)

 

Target + Tolerance

Slow actuation of dispense valve A or B

 

 

 

 

23

Low Ratio (units with

Spray

Mix ratio lower than

Clogged flow meter

 

meter[s] only)

 

Target - Tolerance

 

 

 

 

 

24

Dose Timeout A (units

Spray

Air flow switch indicates

Air flow switch stuck open.

 

with meter[s] only)

 

more than 40 sec of air

Atomizing air leak downstream of air flow switch.

 

 

 

flow without dose com-

25

Dose Timeout B (units

 

 

pleting

 

 

with meter[s] only)

 

Clogged flow meter.

 

 

 

 

 

 

 

 

 

 

 

Gun triggered without fluid (dusting parts)

 

 

 

 

 

26

Park Timeout

Park

Pumps not at bottom of

Sampling valves closed, or gun not triggered.

 

(pump-based units only)

 

stroke

 

 

 

 

 

 

 

Testing Error

 

 

 

15

Piston packing/ball A*

Test

Pump does not com-

Piston packing or ball check failure

 

 

 

pletely stall in up stroke

 

16

Piston packing/ball B*

 

 

 

 

 

 

 

 

 

 

17

Inlet Ball A*

Test

Pump does not com-

Intake valve ball check failure

 

 

 

pletely stall in downstroke

 

18

Inlet Ball B*

 

 

 

 

 

 

 

 

 

 

19

Dispense Valve A*

Test

Pump does not com-

Throat packing or dispense valve failure

 

 

 

pletely stall in both up

 

20

Dispense Valve B*

 

 

 

and down strokes

 

 

 

 

 

 

 

 

 

 

27

Pump Calibration

Run A

Pump doesn’t run

Sampling valves closed.

 

Timeout A

 

through calibration.

 

 

 

 

 

 

28

Pump Calibration

Run B

 

 

 

Timeout B

 

 

 

 

 

 

 

 

14

309909H

Page 14
Image 14
Graco 309909H important safety instructions Code Alarm Active Problem Cause, Testing Error