Re: Htp wd64
Sounds like an inlet valve problem. An intermittent condenser valve solenoid failure would cause this. Might be worth trying a known good solenoid on the condenser inlet valve for a couple of washes. You will need to change the complete three way valve to effect a proper repair as the normal fill valve solenoids do not like being energised for hours.
I have seen these valves fail after watching them for half an hour.
I take it you have checked the condenser itself for blockages?
Jim.