Haier 232738 用户手册

Check for a damaged control board or pressure control switch as follows:

1.

Relieve pressure.

2.

Unplug electrical cord.

3.

Remove four cover screws and front cover (XR9).
Remove motor enclosure (dx).

4.

Remove yoke and guide rods (XR9 model only).

5.

Remove gear (XR9 model only).

6.

Remove pressure control harness from control 
board. Using fingernail or tip of small, flat blade 

screwdriver, press tab on right side connector to 
release.

7.

Attach harness from a control board you know is 
functioning correctly to control board.

8.

Turn pressure control adjustment knob to maximum 
pressure setting.

9.

Plug electrical cord into 220-240 V AC receptacle.

10. Turn power switch ON.

•

If motor runs, replace pressure switch. 
Pressure Control Switch Kit, page 18.

•

If motor does not run, replace control board 
repeat test. Control Board Kit, page 18.

When pump packings wear, paint begins to leak down 
outside of pump. Replace pump packings at the first 
sign of leaking or additional damage to drive train could 
occur. Use Pump Repair Kit, page 18.

If sprayer continues to cycle (motor and pump run) when 
the spray gun trigger is released, or if performance is 
poor even with new spray tips and clean filters, the 
pump inlet or outlet valve may be obstructed or worn. If 
a pump is worn, replace it. List of Kits, page 18.

Check for motor problems before replacing control board. A damaged motor may burn out a good 
control card

Page 4, 6.

Pressure control switch does not have to be 
installed in pump.

When repairing or cleaning the pump, never 
submerge pump in water or allow fluid to enter 
pressure control.

When repairing or cleaning pump, never 
submerge pump in water or allow fluid to enter 
pressure control.