Siphoning - Not Siphoning?

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

Washing machine only fills or drains when outlet hose position is changed

The problem

The washing machine would only fill for wash when the drain hose was kept high, and would only empty when the hose was lowered manually. The user wanted a permanent solution instead of moving the hose each time.

Likely cause

Two separate faults were suggested. If water is draining away during filling, the machine is likely siphoning because the drain hose is pushed too far down the waste pipe or the waste pipe is fitted too low. If the machine only empties when the hose is dropped low, the drain pump is likely not pumping properly due to a failed pump or a blockage/obstruction in the pump, sump hose or drain hose.

What fixed it

Correct the drain hose installation so it cannot siphon, and investigate the drain system for a pumping fault or blockage. The accepted reply indicates the draining issue is separate from siphoning. The exact repair carried out was not confirmed in the discussion.

Checks to try

• Check whether water fills and immediately runs down the drain
• Check whether the drain hose is pushed too far down the waste pipe
• Check whether the waste pipe is fitted too low
• Check for blockage or obstruction in the pump
• Check for blockage or obstruction in the sump hose
• Check for blockage or obstruction in the drain hose