Diagnostics - Haier GE DDT700S N0 Series Technical Service Manual

Diagnostics

Drain Pump Strip Circuit
Yes
Check Air Gap, Disposal etc for clogs,
clean as needed. Check for kinked drain hose, repair as
needed. Remove Ultra Fine Filter and fine filter, clean
sump as needed. Remove Check Valve, clean or
replace if needed.
Replace Main Control
Does Drain
Pump Run?
No
Is the circulation pump operational?
Yes
Is Drain Pump stalled (feel drain
pump for vibration)?
No
Remove connector J703,
check resistance from Blue –
Yes
Yellow, 0.3 – 5.0 mega-ohm is
normal
– 71 –
Refer to Fuse
No section of this
Guide
Clean or replace
Yes
as needed
Replace Drain Pump if
No
needed