Failure To Drain Diagnostics - Haier GE GDF510P M4 Series Service Manual

Failure to Drain Diagnostics

Failure to drain symptoms:
1. F56 fault code
2. Water left in tub
3. Dishwasher not completing
cycle
4. Dishwasher won't fill
5. Clean indicator not coming on
6. Detergent cup not opening
7. User interface turning off
Check drain pump electrical
connection
to pump and main board, and
continuity check on harness. Is
issue resolved?
NO
Replace drain pump. Is issue
resolved
NO
Likely a control board, inverter
board, or harness issue
Failure to Drain Flowchart
Failure to drain symptoms are
present in appliance diagnostic
tool or customer complaint
YES
Check air gap for clogging
Check disposer for
clogging/plug
Validate that dishwasher has
correct drain hose
Check that high drain loop is
present on side of tub
Check that drain hose leaves
sump at upward angle and
does not have a low spot in it
Remove check valve and allow
unit to drain 1 drain segment
Is issue resolved?
YES
Does dishwasher drain
NO
YES
YES
Less than 25 sec drain
Home plumbing is likely clogged, or
COMPLETE
6
– 68 –
Not a drain
issue
NO
NO
any water? YES, (SLOW DRAIN
(More than 40 seconds))
Unhook drain hose from
plumbing and drain into a
YES
bucket. Dishwasher
should drain in less than
More than 25 sec drain
consumer has more than the
recommended 12 ft of drain hose
length. Recommend plumber.
25 sec.
Replace drain
pump. Is issue
NO
resolved
YES