Appliance Spares
Quick answer: Bosch dishwasher error codes are two-digit numbers (E09, E15, E18, E24, etc.) displayed on the control panel. Each code points to a specific fault — heating, water inlet, drainage, or a blocked filter. Most can be resolved with a filter clean, hose check, or an inexpensive replacement part.
Not sure which one fits? Match your model number or check the sticker inside the door.
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What do Bosch dishwasher error codes mean?
Bosch dishwashers use a two-character fault code system. When the machine detects a problem it cannot recover from on its own, it stops mid-cycle and shows a code on the display — typically a letter E followed by a number. The code tells you which system triggered the fault: water supply, heating, drainage, or a safety cutout such as AquaStop.
Understanding the code is the first step. In most cases you will not need a service technician — the fix is a blocked filter, a kinked hose, or a single replacement part. The table below lists every common Bosch dishwasher fault code, what it means, and the usual remedy.
Bosch dishwasher error codes — quick-reference table
| Code | Meaning | Most Common Fix | Full Guide |
|---|---|---|---|
| E09 | Heating fault — water not reaching target temperature | Replace heating element or flow meter / NTC sensor | E09 full guide |
| E15 | Water detected in base pan — AquaStop triggered | Tip machine forward to drain base, identify leak source | E15 full guide |
| E17 | Inlet water temperature too high — hot water connected directly | Connect cold water supply only; Bosch recommends max 60°C inlet | — see note below |
| E18 | Water inlet fault — machine not filling within time limit | Check tap is open, hose is not kinked, replace inlet valve if needed | E18 full guide |
| E22 | Filter blocked — restricted water flow detected | Remove and clean filter assembly under lower basket | E22 full guide |
| E24 | Drain blocked — water not pumping out | Clean filter, check drain hose is not kinked or blocked at sink end | E24 full guide |
| E25 | Drain pump impeller blocked — pump cannot turn | Remove and clear blockage from pump impeller | E25 full guide |
Note on E17: This code appears when the dishwasher detects that the incoming water is already very hot — typically because the machine has been plumbed directly to a hot water line. Bosch dishwashers are designed to be connected to a cold water supply and heat water internally. If you see E17, check the plumbing connection. No parts are required; reconnecting to cold supply resolves the code immediately.
How to reset a Bosch dishwasher error code
Before investigating any fault, try a soft reset first. Hold the Start/Pause button for three seconds until the programme light goes out, then open the door and close it again. This cancels the current cycle and clears temporary codes. If the code reappears on the next cycle, the underlying fault is still present and needs to be addressed.
For a full reset on most Bosch models, switch the machine off at the power point, wait thirty seconds, and switch it back on. If the code persists after a full power cycle, work through the relevant guide linked in the table above.
Which Bosch error codes are most common in Australian homes?
Based on the parts most frequently ordered through our store, the most common Bosch dishwasher faults in Australia are:
- E24 / E25 — drainage faults. These are by far the most frequent calls. Hard water deposits, food debris, and the occasional broken glass fragment block filters and drain pump impellers. Usually resolved without any parts — a thorough filter clean is the first step.
- E15 — water in base. A small drip from a door seal, inlet hose, or pump housing collects in the base pan until AquaStop triggers. Identifying the actual leak source is the key step.
- E18 — water inlet fault. Inlet valves are subject to scale buildup and occasional solenoid failure. The flow meter / reed switch board (00611317, $23.95) is a related component — it measures water flow and can trigger inlet-related faults when it fails.
- E09 — heating fault. Less common but costlier to ignore. Dishes come out cold and wet. Usually the heating element or NTC temperature sensor.
Bosch dishwasher parts available now
We stock genuine and quality-equivalent Bosch dishwasher parts for fast dispatch across Australia. Parts are listed by part number so you can match them directly to your model sticker (located on the inside of the door frame).
If you are unsure which part suits your model, use the part finder quiz — enter your model number from the sticker and it will show compatible parts.
Bosch E22, E23 and E25 — the drain and pump codes
E22 means residual water is sitting in the sump — nine times out of ten the filter assembly is clogged. Twist out the filter, rinse it, and check the sump for glass or bones. E23 is a drain pump fault: the control board sees the pump drawing the wrong current, which means a jammed impeller or a failed pump winding. E25 is a blocked drain pump or pump cover — the impeller cannot spin. Clear the impeller first; if the code returns with the impeller free, the pump itself has failed and needs replacing.
| Code | Meaning | Fix in order |
|---|---|---|
| E22 | Water left in sump (filter) | Clean filter and sump — no part needed unless it repeats |
| E23 | Drain pump electrical fault | Free the impeller; replace the drain pump if the code returns |
| E24/E25 | Drain blocked / pump cover | Check the drain hose kink and pump cover clip, then the pump |
We keep Bosch dishwasher parts in stock in Sydney — same-day dispatch before 12pm. If your model is not listed, send the E‑Nr from the door sticker and we will match the pump.
Three checks for the codes Australians search most
E18 — not filling
E18 means the dishwasher asked for water and did not get enough within its fill window.
Three checks, in order:
- Open the tap under the sink fully and check the inlet hose is not kinked or crushed behind the machine.
- Turn the tap off, unscrew the inlet hose at the tap end and rinse the mesh filter screen inside the connector. Scale and grit block it first.
- Start a cycle and listen for the valve to click and water to hiss in. Silence with a clear screen and full pressure means the inlet valve or the flow meter that counts the water is at fault.
The part that usually fixes it: Bosch dishwasher flow meter / reed switch board 00611317 — in stock, ships from Sydney, typically $20–$30. For the inlet valve itself, match your E-Nr against the current Bosch parts range.
E22, E24 and E25 — not draining
E22 is a blocked filter, E24 a blocked drain path and E25 a blocked or failed drain pump. All three start at the same place.
Three checks, in order:
- Bail the water out of the sump, twist out the filter assembly and rinse it. Check the sump for glass, seeds and bones.
- Unclip the pump cover and turn the impeller by hand. It should spin freely; a glass shard wedged behind it is the usual jam.
- Straighten the drain hose behind the machine and check where it joins the sink waste. Run a rinse cycle. If it still will not drain with a clear path, the pump has failed.
The part that usually fixes it: A drain pump matched to your E-Nr. We do not have a Bosch dishwasher drain pump listed in stock today — check the current Bosch parts range or the wider dishwasher parts range, and send your E-Nr via the contact page so we can match the right one.
E15 — water in the base pan
E15 means the float switch in the base pan has found water and AquaStop has shut the machine down.
Three checks, in order:
- Tilt the machine forward about 45 degrees with a second person helping so the base pan drains back through the sump, then let the float reset.
- Mop the base dry, run a short cycle and watch underneath with a torch for the first drip. The door seal, the sump seal and the inlet hose connection are the three usual sources.
- Check the inlet hose at both ends. An AquaStop hose that has tripped stays shut until it is replaced.
The part that usually fixes it: Whatever is leaking — door seal, sump seal or inlet hose. Match your E-Nr in the Bosch parts range; door springs and cords for a dropped door are covered by the Bosch dishwasher door spring and cord repair set 00754866 — in stock, ships from Sydney, typically $30–$40.
E09 — not heating
E09 is the heating circuit: the flow-through heater is not bringing the water up to temperature, so the dishes come out cold and the cycle stops part-way.
Three checks, in order:
- Run a hot rinse and feel the door at the end of the cycle. Cold glass with a full cycle time confirms the heating side.
- Isolate the machine at the power point and check the heater circuit for continuity. An open circuit is a failed flow-through heater.
- Check the NTC temperature sensor plug on the sump. A corroded or unseated plug throws the same code as a dead heater.
The part that usually fixes it: The flow-through heater is replaced as a unit on most Serie models. Send your E-Nr via the contact page and we will match it to the current Bosch parts range.
Parts for this fault
Prices are guides, not quotes — the exact part depends on the E-Nr on your door sticker.
| Fault | Usual part | Link |
|---|---|---|
 E18 — not filling | Flow meter / reed switch board, then the inlet valve | Flow meter board 00611317 — in stock, ships from Sydney, typically $20–$30 |
| E22 / E24 / E25 — not draining | Filter clean first, then the drain pump | Bosch parts range · dishwasher parts range |
| E15 — water in the base | Door seal, sump seal or inlet hose | Bosch parts range |
| E09 — not heating | Flow-through heater or NTC sensor | Bosch parts range |
 Door drops open or will not latch | Door spring and cord set | Repair set 00754866 — in stock, ships from Sydney, typically $30–$40 |
Frequently asked questions
My Bosch dishwasher shows E15 but I cannot see any water. What should I do?
The water is in the base pan, not visible from outside. Tilt the machine forward about 45 degrees (with someone helping) so the water drains back through the sump. Once the float switch resets, the code should clear. Then run a short cycle and watch for any drips under the machine to locate the leak source before running a full cycle.
How do I find my Bosch dishwasher model number?
Open the door fully and look along the left-hand edge of the door frame. The model sticker lists the model (E-Nr) and serial number (FD). You’ll need the E-Nr number to match parts correctly.
Can I run my Bosch dishwasher while it is showing an error code?
It depends on the code. E22 (blocked filter) is low-risk to investigate immediately; E15 (water in base) should not be ignored as continued running could cause electrical damage. As a general rule, do not run the machine until you have identified and fixed the fault.
Is E17 a serious fault on a Bosch dishwasher?
E17 is not a component failure — it is a safety warning that the inlet water is too hot. It is easy to resolve by switching the supply to cold water. However, if your machine has always been plumbed to cold water and E17 has just appeared, the inlet temperature sensor may be faulty and worth investigating.
Why does my Bosch dishwasher keep showing E24 even after I clean the filter?
If the filter is clean but E24 persists, the blockage is likely further down the drain path — in the sump, the drain hose, or where the drain hose connects to the kitchen sink waste. Check the drain hose is not kinked and that the connection point at the sink (or garbage disposal unit) is clear. If all of that checks out, the drain pump itself may be failing.
What does E23 mean on a Bosch dishwasher?
E23 is a drain pump fault. The control board sees the pump drawing the wrong current, which means a jammed impeller or a failed pump winding. Clear the impeller through the pump cover in the sump; if E23 returns with the impeller free, replace the drain pump.
How do I fix a blocked Bosch dishwasher drain pump?
Bail out the sump, twist out the filter, unclip the pump cover and turn the impeller by hand — glass shards are the usual jam. Refit the cover and filter and run a rinse cycle. If it still will not drain, the pump has failed and needs replacing.
What does E09 mean on a Bosch dishwasher?
E09 is the heating circuit. The flow-through heater is not bringing the water up to temperature, so the dishwasher washes cold and stops mid-cycle. The heater is replaced as a unit on most Serie models — quote the E-Nr from the door sticker to match it.
What does E18 mean on a Bosch dishwasher?
E18 is a water inlet fault: the machine did not fill within its time limit. Open the tap fully, straighten the inlet hose, then rinse the mesh screen inside the hose connector. If the tap is on and no water hisses in, the inlet valve or the flow meter has failed — the flow meter board 00611317 is in stock, ships from Sydney, typically $20–$30.
What does E22 mean on a Bosch dishwasher?
E22 means water is sitting in the sump because the filter is clogged. Twist the filter assembly out, rinse it under the tap, and check the sump for glass and bones before refitting.
Related guides
- LG dishwasher error codes — complete Australian guide
- Samsung dishwasher error codes — complete Australian guide
- Bosch dishwasher E15 error — water in base / AquaStop guide
- Bosch dishwasher E24 error — drain blocked fix guide
- Bosch dishwasher E18 error — water inlet fault guide
- Fisher & Paykel dishwasher error codes guide
Ready to fix it?
Find the right part for your Bosch dishwasher using the part number from your model sticker. We stock parts for a wide range of Bosch models and dispatch quickly across Australia.
Use the Part Finder quiz · Browse Bosch dishwasher parts
Not sure which part?
Not sure which part? Send a photo of the model sticker via the contact page and we’ll match it. Quote the full model number and the code on the display and we will point you at the exact part — every part linked above is in stock and ships from Sydney.
Disclaimer: this article is general information only and is provided without warranty of any kind. Appliance designs vary between models and production runs — always follow the manufacturer’s instructions, switch off and unplug the appliance before starting any work, and confirm parts against the model number on your appliance’s model sticker. Any repair is undertaken at your own risk and Oz Appliance Spares accepts no liability for injury, loss or damage arising from work performed after reading this guide, to the maximum extent permitted by law. If in doubt, use a qualified technician.
