The short answer
A Hava dishwasher that will not start is usually a door latch or a supply problem rather than a failed board. On this machine these are compact and often portable units, plumbed or sited in places a full-size machine would never go, which is why the order below runs as it does. Whether the panel lights at all separates a supply fault from everything else, so establish that first.
What you observe
- The panel lights but nothing happens on start — Power is fine, so the machine is refusing. Usually the latch or the fill.
- The door will not latch, or springs back — The latch switch never makes and nothing will run until it does.
- It hums briefly and stops — It tried, failed a fill or drain check, and gave up.
- NEAR MISS: it runs and stops partway through — That is a cycle fault and the drainage or cleaning pages are more likely to help.
Causes, most likely first on this build
- Door latch or its switch not making — Ranked first on this build: a heavy door on a precision catch goes out of adjustment here, and the latch switch is the safety interlock that stops everything.
- No power at the spur, socket or breaker — Second: the socket or spur is often behind a cupboard and gets knocked, which leaves a machine that looks dead and is not faulty.
- Water supply valve closed or the inlet restricted — Third: a part-closed tap or a silted inlet fails the fill check with no useful indication.
- Control board, touch panel or door switch failed — Last: last, and it is the only one of these needing a technician with a meter.
Check in this order, and why
- Check the switched spur or socket that feeds the machine — Usually under a worktop or in the neighbouring cupboard, and it is the commonest cause.
- Close the door firmly and listen for the latch — A crisp click means the switch made. A soft one or a door that springs back means it did not.
- Clear any delay or child lock and power-cycle at the breaker — Last of the free checks, and it clears a control that has latched.
What an owner can safely check
- Close the door firmly and watch the panel respond — A door that has dropped on its hinge needs a firm push, never force.
About 5 min
- Open the stop tap fully and check the fill hose is not kinked behind the machine — Both are free, and both stop a cycle before it visibly starts.
Tools: torchAbout 15 min
- Clear any lock or delay, switch off at the breaker for a minute and retry — A full power-off clears a latched control where cancel does not.
About 10 min
- STOP HERE if the next step needs the door panel off or a meter on live terminals — That is where an owner check ends and a service call begins.
Before you open anything
Safety
Switch off at the breaker before removing any panel, because a capacitor can hold a charge after the power is off and the machine sits in a wet cupboard. Never defeat the door latch switch: it stops a hot wash spraying into the room. Close the stop tap before disturbing any fitting, and be ready for the water standing in the hose.
When to call a technician
Call once the spur is proven live, the door latches, the tap is open and no lock is set and it still will not start, because the next step is a meter on the latch switch and the board. Call at once if the spur or socket is scorched or smells hot, and leave the breaker off until it has been looked at. Parts for a direct import come from the seller rather than a service network, so confirm the part can actually be had before paying for a diagnosis that ends in a back-order.
Nearest pages of this class
What this page does not cover
This page covers the Hava dishwasher as a class rather than one family or model line. Latch and panel part numbers, board variants, door fixings and the spur arrangements used on individual installations are deliberately not here. Where a family or model page exists for your unit, it is the more specific answer and the one to read first; the nearest pages of this class are linked just above.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
