Drain System; Operation; Drain Pump Diagnostics; Drain Components - Haier GE GDF510P M4 Series Service Manual

Operation

The drain pump operates on 120 VAC.
Drain water will back flush the fine filter through
the coarse filter, allowing food particles to settle
through the floor plate and into the drain pump.
It may be normal for the drain pump to start and
stop several times during a drain cycle if the
pressure sensor does not detect a drain.

Drain Pump Diagnostics

If the fuse for the motors (located on the main
control) is found open, remove connector
J703 from the control and check the blue to
yellow wires using a multimeter on the highest
resistance setting. If the reading is between
0.3 to 5.0 mega-ohms then that would indicate
a good pump. If it measures OL (OverLoad), it
indicates an open circuit and that the drain pump
is bad. If the drain motor checks OK, replace the
circulation pump motor.

Drain System

Drain Components

The drain pump is located on the left side of the
sump assembly and uses a twist lock connection
to the sump. As described in the sump section of
this guide, a drain check valve is located inside
the sump collection chamber.
It can be removed by lifting the bracket out of the
sump.
The "DO NOT REMOVE" note on the check valve
bracket is meant for the consumer.
– 67 –