Change the Water Filter Cartridge and Inspect O-ring
The water filter removes debris from the incoming water. See the Maintenance Schedule for the recommended frequency for this task.
|1.||Turn OFF the machine.|
|2.||Disconnect the power cord from the electrical outlet.|
|3.||Turn OFF the water supply.|
|4.||Ensure there is no pressurized water in the high-pressure lines.|
|a.||Open the lid and lock it in the upright position.|
Use care when opening or closing the lid to avoid injury. Never let the lid free-fall. Keep hand, fingers, or body parts away from the side of the table when closing the lid.
|b.||Loosen the gland nut  to release the pressure; water can leak from the inlet body weep hole.|
|c.||Tighten the gland nut .|
|5.||Remove the water filter housing .|
|6.||Remove and discard the filter element.|
|7.||Wash and rinse the filter housing to remove all sediment and coatings from inside the filter housing.|
|8.||Inspect the filter housing O-ring  for damage and replace it if needed (Figure 491).|
|9.||Apply a light coat of silicone to the filter housing O-ring , then insert it into the water filter housing.|
To prevent leaking, do not twist or bind the O-ring.
|10.||Place the new filter element  into the filter housing .|
The filter element is bi-directional and can be installed in either direction.
|11.||Install the lower filter housing assembly to the upper filter housing and hand-tighten.|
Do not tighten the filter housing with the water filter wrench. Damage to the filter housing or filter housing O-ring can occur and can cause leaks.
|12.||Turn ON the water supply.|
|13.||Place a rag over the top of the filter, then hold down the air bleed button  to release air from the filter.|
If all of the air is not purged from the filter, the pump cannot develop sufficient pressure, and the pump shuts down.
|14.||Reset the pump to recalibrate the pump pressure.|
|15.||Verify the water pressure when the pump is running.|