Troubleshooting - Graco Reactor A-25 Repair Parts

Troubleshooting

PROBLEM
Reactor does not operate.
Fan not working.
Pump output low.
Fluid leak in pump packing nut area. Worn throat seals.
No display.
No temperature display.
No cycle counter display.
Does not count.
14
CAUSE
No power.
No air or hydraulic power.
Red stop button circuit open.
Blown fuse.
Loose wire.
Defective fan.
Obstructed fluid hose or gun; fluid
hose ID too small.
Worn piston valve or intake valve in
displacement pump.
Main power OFF.
Loose display cable.
Display board failed.
Loose display cable.
Failed temperature control board.
Inadequate power to temperature
board.
Loose power cable (internal to dis-
play).
Defective display board.
Loose display cable.
Defective counter.
Magnet (26) missing from pump
yoke.
Defective reed switch (27).
Troubleshooting
SOLUTION
Plug in power cord.
Turn main power ON
Turn circuit breakers ON, page 18.
Open red-handled valve.
Check button connections. See page
32 and electrical diagrams.
Replace, page 19.
Check.
Replace, page 19.
Open, clear; use hose with larger ID.
See pump manual.
Replace. See pump manual.
Turn main power ON
Check cable connections, page 32.
Check board, replace; page 32.
Check cable connections, page 32.
Open cabinet. Check if board LED is
blinking. If not, check power wiring
connections to ensure board has
power. If board has power and LED is
not blinking, replace board, page 20.
Check that power supply meets
requirements.
Check cable connections, page 32.
Replace, page 32.
Check cable connections, page 32.
Replace, page 32.
Replace.
Replace.
.
.
309813B