Indesit Iwme127

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

Indesit IWME127 would wash but not advance to drain/spin due to drain back from altered waste pipe

The problem

An Indesit IWME127 would run the wash stage but would not complete the cycle by moving on to drain and spin. Drain and spin worked when those functions were selected separately.

Likely cause

The accepted reply suggested a possible open-circuit heater, as these machines can sometimes stall in wash without showing a fault code. However, the original poster later confirmed the actual cause was an incorrectly altered waste installation: the waste pipe had been raised above the washer outlet, allowing discharged water to flow back into the machine and also allowing sink waste water to enter the washer.

What fixed it

Investigate the external waste plumbing rather than the appliance itself. The confirmed fix was to identify that the recently altered waste pipe arrangement was causing backflow into the machine. The exact corrective plumbing work was not described, but the fault was traced to the waste installation rather than an internal washer component.

Checks to try

• Observed that the machine washed but did not move on to drain and spin
• Confirmed that drain and spin worked when selected independently
• Accepted advice was to test the heater with a meter and check heater-related connections
• Found that the waste pipe had been raised above the level of the washer outlet
• Observed that emptied water flowed back into the machine
• Observed that running water into the sink filled the washer

Parts or tools mentioned

• meter