Haier MAGNUM 232738 User Manual download pdf (Page 16)

Advanced Troubleshooting

16 309477F

Control board is damaged.

CAUTION: Do not perform

control board diagnostics until

you have determined the

armature is good. A bad motor

can burn out a good control

board.

See Control Board Diagnostics, page 19. If

damaged replace control board using Control

Board Kit, page 18.

Motor runs and pump cycles,

but pressure does not build up

Intake valve ball or outlet valve

ball is not seating properly

Remove and clean valves and check balls and

seats for nicks; replace if necessary. Strain paint

before spraying to remove particles that could clog

pump. Pump Service, page 20.

Pump packings are worn or

damaged

Check for leaking around throat packing nut.

Replace pump packings if there are leaks. Pump

Service, page 20.

Prime/Spray Valve leaking Check Prime/Spray Valve for debris trapped on

seat and for worn parts. Torque to 21 N•m (185

in-lb). If parts are worn, replace valve using

Prime/Spray Drain Valve Kit, page 18.

Spray pattern has variations,

pressure fluctuates

excessively, or motor runs very

slowly

Leads from motor or pressure

switch to control board are

damaged, loose or overheated

Be sure terminals are centered and firmly

connected. Inspect wiring insulation and terminals

for signs of overheating. Replace any loose

terminals or damaged wiring. Securely reconnect

terminals.

Pressure control switch leads

are pinched between pump

and drive housing or between

front cover and drive housing

(XR9 only)

Make sure pressure control harness is routed

behind pump, through retention clip and

connected to control board connector on control

board (connect with tab to right).

Control board is damaged.

CAUTION: Do not perform

control board diagnostics until

you have determined the

armature is good. A bad

armature can burn out a good

control board.

See Control Board Diagnostics, page 19. If

damaged, replace control board using Control

Board Kit, page 18.

Pressure control switch is

damaged or worn out

Replace pressure control switch using Pressure

Control Switch Kit, page 18.

Specific Problem Cause Solution

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 29 30

Comments to this Manuals

No comments

Haier MAGNUM 232738 User Manual Page 16

Comments to this Manuals

Related products and manuals for Paint Sprayer Haier MAGNUM 232738