What F09 actually means
The dishwasher has lost a reliable signal from one of its water-monitoring/water-routing parts and has stopped the programme rather than carry on blind.
On these Rangemaster machines F09 is logged against the turbidity sensor — the small sensor that reads how dirty the water is so the machine can decide whether to extend the wash or change the water — and on some variants in the same platform the same code is recorded as an open circuit on the diverter, the part that switches water between the upper and lower spray arms. Either way the control board is getting no sensible reading from that circuit, so it flags the fault, usually with the indicator lights flashing together. Rangemaster's own user guides group F09 with the codes they tell you to hand straight to a service engineer rather than attempt yourself.
What F09 looks like on a Rangemaster dishwasher
Most people find this page having searched for what the machine is doing rather than the code itself. On a Rangemaster dishwasher, F09 usually shows up as one or more of these:
- Dishwasher not draining
- Water left in the tub at the end of the cycle
- Stops mid-cycle full of water
- Standing water in the bottom
- Tub not turning
- Won't spin
- Hums or buzzes but nothing moves
- Turns one way only
Recognise any of those? That is this fault, and the rest of this page explains what causes it and what you can check yourself.
What usually causes it
- Faulty or fouled turbidity sensor giving no usable reading
- Broken connection or open circuit in the diverter wiring
- Diverter motor or its position switch failed
- Control board no longer reading the sensor circuit correctly
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 switch back on and start a short programme — an occasional one-off glitch will clear
- Clean the filters and the sump area by hand, as heavy soil and grease build-up sits directly around the water sensing area
- Check nothing is blocking or fouling the spray arms so you can tell an engineer whether the wash water is being distributed at all
Which Rangemaster models show F09
F09 means the same thing on all 3 of these models. If yours is not listed, the explanation above still applies — the code is set by the control board, not the model number.
RDW1045FI · RDW1260FI · RDW6012D22
Common questions about Rangemaster F09
What does F09 mean on a Rangemaster dishwasher?
The dishwasher has lost a reliable signal from one of its water-monitoring/water-routing parts and has stopped the programme rather than carry on blind. On these Rangemaster machines F09 is logged against the turbidity sensor — the small sensor that reads how dirty the water is so the machine can decide whether to extend the wash or change the water — and on some variants in the same platform the same code is recorded as an open circuit on the diverter, the part that switches water between the upper and lower spray arms. Either way the control board is getting no sensible reading from that circuit, so it flags the fault, usually with the indicator lights flashing together. Rangemaster's own user guides group F09 with the codes they tell you to hand straight to a service engineer rather than attempt yourself.
Can I fix Rangemaster F09 myself?
There are 3 checks you can safely do yourself first.
- Turn the machine off at the wall for a minute, then switch back on and start a short programme — an occasional one-off glitch will clear.
- Clean the filters and the sump area by hand, as heavy soil and grease build-up sits directly around the water sensing area.
- Check nothing is blocking or fouling the spray arms so you can tell an engineer whether the wash water is being distributed at all.
This one usually needs an engineer once you have tried them.
How much does it cost to repair Rangemaster F09?
£66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.
Tried the checks and it's still showing F09?
This one usually needs an engineer once you have tried the checks above. Then it wants someone who can open it up.
What it costs, before you call: the price is the same whatever the fault turns out to be — £66 including VAT for an engineer to come out and diagnose it, or £84 in total including VAT if it is put right on the visit and no parts are needed. Any parts needed are quoted on site before we fit them — you decide. Every repair carries a 90-day workmanship guarantee.
Our own engineers, not a call centre. We cover Nottinghamshire, Derbyshire and Leicestershire — most dishwasher faults are seen same day or next day.
Call 0115 648 0929 Book online — postcode and number is all we need
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.
Other Rangemaster dishwasher codes
- Rangemaster FE — The machine has spotted that one of its own moving parts has…
- Rangemaster SE — The dishwasher's control board has checked its own stored se…
- Rangemaster F00 — The dishwasher has detected too much water inside it and has…
- Rangemaster F01 — The dishwasher has decided there is too much water inside it…
- Rangemaster F02 — The dishwasher can't get the dirty water out, so it has halt…
- Rangemaster F03 — The dishwasher has decided water is still coming in when it …
- Rangemaster F04 — The dishwasher isn't seeing water flowing in when it tries t…
- Rangemaster F05 — The dishwasher isn't getting enough water in, so it has halt…
All Rangemaster fault codes and repairs →