Dishwasher Won’t Start? 5 Things to Check

Quick answer: A dishwasher that won’t start at all is most often the door not latching properly, a control lock switched on by accident, or a tripped circuit — all quick to check yourself. If the door latches fine, power’s confirmed, and it still won’t start, that’s usually a door switch or control board fault.

1. Check the door is latching properly

Most dishwashers have a safety switch that stops the cycle from starting unless the door is fully closed and latched. Open and firmly close the door again — sometimes an item leaning against the door, or a rack pulled out slightly too far, is enough to stop it from clicking shut properly.

2. Check for a control lock or child lock

Many models have a control lock (sometimes labelled with a small padlock icon) that can be switched on by accident, especially in a busy kitchen. Check your model’s manual for the button combination to unlock it — it’s a common, easy fix that looks exactly like a dead machine until you know what to look for.

3. Check the power supply

Check the circuit breaker or the switch at the wall (often near the sink or under the bench) hasn’t tripped or been accidentally switched off. Dishwashers usually sit on their own circuit, so it’s easy for this to go unnoticed if nothing else nearby has lost power.

4. Check for a delay start setting

If the display shows a countdown or a time rather than starting the cycle immediately, a delay start has likely been set — accidentally or otherwise. Cancelling it and starting the cycle fresh usually sorts it.

5. Check the water supply is connected

Some models won’t begin a cycle at all if they can’t detect water at the inlet valve. Check the tap under the sink that feeds the dishwasher is fully open, especially after any recent plumbing work.

When it’s a job for a technician

Door latching, no lock engaged, power confirmed, and it still won’t start? That points to a door switch, control board or wiring fault that needs proper diagnosis. Our dishwasher repair technicians in Hobart, Indiana diagnose the exact cause on the visit and give you a flat, upfront price before any work starts.

A dishwasher that shows no signs of life — no lights, no sounds — almost always comes down to power or the door latch, not a major fault.

Frequently Asked Questions

Why does my dishwasher show a light but still not start?

That usually means it has power but isn’t getting the “door closed” or “start” signal it needs — check the door latch and control lock first before assuming it’s a bigger fault.

Can a power surge stop a dishwasher from starting?

It can, particularly if it’s tripped the circuit breaker. Checking the breaker is one of the fastest things to rule out before booking a repair.

How much does this kind of repair typically cost?

It depends on the fault — a door switch is generally more affordable than a control board. We diagnose and quote upfront before any work starts, and every repair is backed by a 12-month parts and labour guarantee.

Checked everything above and it still won’t start? Book a technician online — we repair dishwashers right across Hobart, Indiana. You might also find our guide on what to check if your dishwasher isn’t draining useful.

Want to avoid a repeat call-out? See simple steps that help avoid this next time.