All horizontal lights flashing

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

Hotpoint Aquarius WDL540P flashing horizontal lights during fill

The problem

A Hotpoint Aquarius WDL540P would switch on and take in some water, then after about one minute the Super Wash, Extra Rinse, Mini Load and Slow Spin lights flashed together while the wash basket and door lock lights stayed on. The user also felt the fill level seemed too low and had already checked the pump/filter for blockage twice.

Likely cause

The accepted diagnosis was water siphoning away during fill because the drain hose may have been inserted too far down the standpipe or positioned too low, allowing water to run straight to drain.

What fixed it

Check whether water is flowing out through the drain hose while the machine is filling, and correct the drain hose position if it is too low or too far down the standpipe. The exact adjustment made was not described.

Checks to try

• Pump/filter checked twice for blockage
• Observed machine filling, then fault after about one minute
• Considered whether water was draining away via the drain hose during fill