Graco Reactor H-25 Series Repair And Parts Manual page 16

Troubleshooting
PROBLEM
Erratic display; display turns on and
off.
Hose display reads OA at startup.
Display does not respond properly to
button pushes.
Red stop button does not work.
Fan not working.
16
CAUSE
Low voltage.
Poor display connection.
Display cable damaged or corroded. Clean connections; replace cable if is
Display cable not grounded.
Display extension cable too long.
FTS disconnected or not installed.
Poor display connection.
Display cable damaged or corroded. Clean connections; replace cable if is
Ribbon cable on display circuit board
disconnected or broken.
Broken display button.
Broken button (fused contact).
Loose wire.
Blown fuse.
Loose wire.
Defective fan.
SOLUTION
Ensure input voltage is within
specifications, Display Module,
page 41.
Check cable connections, Display
Module, page 41. Replace damaged
cable.
damaged.
Ground cable, Display Module,
page 41.
Must not exceed 100 ft (30.5 m)
Verify proper installation of FTS (see
Operation manual 312062), or adjust
FTS to desired current setting.
Check cable connections, Display
Module, page 41. Replace damaged
cable.
damaged.
Connect cable (Display Module,
page 41) or replace.
Replace, Display Module, page 41.
Replace, Display Module, page 41.
Check connections, Display
Module, page 41.
Verify with ohmmeter; replace if
necessary (Display Module, page
41).
Check fan wire.
Replace, Display Module, page 41.
312063Z