Hotpoint Aquarius Wml520

If the door lock is repeatedly clicking even after replacing the interlock, the fault is often not the lock itself but the supply or control to it. On these Hotpoint machines, the board usually tries to lock the door several times before giving up.

Before checking anything internal, isolate the washing machine from the mains.

1. Check the door is actually closing properly Make sure the door catch/strike is not loose, cracked or misaligned. If the door isn’t pulling fully into the lock, a new interlock will still just click repeatedly.

2. Inspect the wiring to the door lock Remove the top or front access as needed and check the plug on the interlock, wiring loom, and terminals. Look for loose connections, overheating, burning, broken wires near the hinge area, or corrosion. A poor connection can cause repeated lock attempts.

3. Check for movement in the cabinet or lock mount If the interlock isn’t mounted securely, or the front panel is distorted, the latch may not engage consistently. Make sure the lock sits firmly in place.

4. Consider the main control board If the lock and door catch are sound, the control PCB may not be sending or holding the correct supply to the interlock. This is a common next suspect when you get repeated clicking with a known good lock fitted.

5. Double-check the replacement part Make sure the interlock fitted is the exact correct one for the WML520. Pattern parts can sometimes cause odd behaviour.

If the wiring and door alignment look fine, it’s likely moving towards a control board or harness fault. For any live electrical testing, it’s best to use a qualified appliance engineer.

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