What E84 actually means
The washing machine's Wi-Fi/Bluetooth module isn't talking to the rest of the machine, so the app side of things won't connect.
E84 is a communication fault between the network (Wi-Fi/BLE) board and the machine's display board. The wash side of the machine is unaffected — it's the HomeWhiz connectivity that has dropped out, usually because the ribbon/plug between the two boards has come loose or the network board itself has failed.
What usually causes it
- Loose plug between the Wi-Fi board and the display board
- Damaged or pinched cable between the two boards
- Network board never properly paired or set up with the HomeWhiz app
- Faulty Wi-Fi/BLE board
- Faulty display board (less common)
What you can safely check yourself
Work through these in order. Anything beyond this — panels off, testing parts, anything to do with the wiring — is an engineer's job, and not one to attempt with the machine plugged in.
- Turn the machine off at the wall for a minute, then power it back up — the fault sometimes clears on a restart.
- Re-run the setup in the HomeWhiz app, including removing the machine from the app and adding it again.
- Check your home Wi-Fi is working and the router is within reasonable range of the machine.
When to call someone
This sometimes clears with the checks above. If it comes back, it needs looking at properly. We cover Nottinghamshire, Derbyshire and Leicestershire, and it's £66 including VAT for an engineer to come out and diagnose it — £84 in total if it's repaired on the visit with no parts needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.
Outside our area? The explanation above still stands — take it to a local engineer and tell them the code. Knowing it saves them time and you money.
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