Troubleshooting - Graco REACTOR E-20 Repair Manual

Troubleshooting

PROBLEM
Reactor does not operate.
Motor does not operate.
Fan not working.
Pump output low.
Fluid leak in pump packing nut area. Worn throat seals.
No pressure on one side.
20
CAUSE
No power.
Red stop button circuit open.
Loose connections.
Circuit breaker tripped.
Worn brushes.
Broken or misaligned brush springs.
Brushes or springs binding in brush
holder.
Shorted armature.
Check motor commutator for burn
spots or other damage.
Damaged motor control board.
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.
Pressure setpoint too high.
Fluid leaking from heater inlet rupture
disk (214).
Troubleshooting
SOLUTION
Plug in power cord.
Turn main power ON
Turn circuit breakers ON, page 32.
Check button connections. See page
50 and electrical diagrams.
Check connections at motor control
board.
Reset breaker (CB5), page 32.
Check 230Vac at output of breaker.
Check both sides. Length must be
0.7 in. (17 mm) minimum. To replace,
page 30.
Realign or replace, page 30.
Clean brush holder and align brush
leads for free movement.
Replace motor, page 33.
Remove motor. Have motor shop
resurface commutator, if possible.
Replace board. See page 34.
Replace, page 37.
Check.
Replace, page 37.
Open, clear; use hose with larger ID.
See pump manual.
Reduce setpoint and output will
increase.
Replace. See pump manual.
Check if heater (2) and PRESSURE
RELIEF/SPRAY valve (SA or SB) are
plugged. Clear. Replace rupture disk
(214) with a new one; do not replace
with a pipe plug.
.
309574L