Indesit Pwde 81480W F05 Drain Problem

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Indesit PWDE 81480W F05 with very slow or no draining

The problem

The Indesit PWDE 81480W washer dryer was taking far too long to drain between wash and rinse, then regularly stopping with F05. The drain programme that should take 2 minutes was taking around 20 minutes or ending with the same fault. The pump could be heard running, but water was not being removed from the drum.

Likely cause

The strongest diagnosis in the discussion was a partial blockage or restriction in the drain path, such as the machine’s drain hose or the sink u-bend/connection. F05 was explained as the pressure switch remaining in the 'full of water' state because the water was not draining away properly. A less certain possibility mentioned was the pump not receiving enough power, but this was not supported by any confirmed test result.

What fixed it

Recommended action was to check for restricted flow by running the drain hose into a bucket to see whether the machine discharged properly, and to inspect the drain hose and any sink u-bend connection for partial obstruction. As the pump motor had already been replaced and the usual accessible checks had reportedly been done, the final advice was to arrange an engineer if the cause still could not be found. No confirmed repair was posted.

Checks to try

• Filter checked and reported clean
• Pump with the ball in checked and reported clean
• Outlet hose blown through and reported clear
• Pump motor replaced with a new one
• Pump could be heard running
• Suggested check: drain into a bucket to compare flow from the machine and rule in or out a blockage at the u-bend/connection

Parts or tools mentioned

• Pump motor
• Bucket