CodeFix
ER26Breville

Breville / Sage Oracle Touch ER26: overheated above target temperature

ER26 means: Steam boiler overheated above target temperature.

Same code, same fix on the Oracle. Everything below applies to both.

Applies to: Oracle Touch.

Short answerThe steam boiler and its pump got hotter than the controller asked for. Technician sources describe two possible causes: the heater kept running when it was told to stop (a triac on the power board latched on), or the sensor under-reads because of a leak or steam at the probe seal. The machine cuts power to protect itself, and a technician source says repeated overheating can open a thermal fuse. ER26 is listed as the steam boiler overheating above its target. Technician videos describe a leaking steam probe seal as a classic cause: steam vents past the o-ring, heats the sensor cable, and the controller sees a runaway temperature. A triac on the power board latching the heater on is the more serious possibility.
Part at faultsteam boiler and its pump
Severityhigh
DIY difficultyhard
When it appearsany time

How to fix ER26

  1. Switch off at the wall immediately and let the machine cool for at least 60 minutes.
  2. Switch back on and watch the heat-up. If it reaches temperature normally and the code does not return, treat it as a one-off and descale as the manual describes.
  3. If it returns, technician sources point to a leaking steam probe seal, where steam heats the sensor cable and gives false overheat readings. Checking and replacing the probe o-rings means opening the machine, so it is a technician job.
  4. If the machine overheats again or steam pours from the group head at idle, a technician source says the triac board may be latched on. That is a board replacement, not a cleaning job.
  5. If the machine will not heat at all after an overheat, a technician source says a protective thermal fuse may have opened. Replacing it needs the machine opened up, so it is technician work.

Checking for scale trails or hissing at the probe port, and replacing the probe o-rings, means taking the cover off, so it is technician work.

One technician video says repeated overheating can open the thermal fuse, after which the machine stops heating. Fuse and triac board work is also technician-level. Breville does not publish prices, so get a quote and compare it with a refurbished unit.

Flowchart for fixing ER26: work through each step, stop as soon as the code clearsER26 appears1. Switch off at the wall immediately andlet the machine cool for at least 60minutes.Fixed?yesDone2. Switch back on and watch the heat-up.Fixed?yesDone3. If it returns, technician sources pointto a leaking steam probe seal, where steamheats the sensor cable and gives false…Fixed?yesDone4. If the machine overheats again or steampours from the group head at idle, atechnician source says the triac board maybe…Fixed?yesDone5. If the machine will not heat at all afteran overheat, a technician source says aprotective thermal fuse may have opened.Still showing?Do not keep running a machine that repeatsan overheat code.
The same steps as the list above, cheapest first. Stop as soon as the code clears.

When to stop and call a repairer

Do not keep running a machine that repeats an overheat code. Latched heaters can boil dry and damage the boiler and wiring.

What it costs

PartsNot published by Breville. Ask an authorised service centre for a quote.
ServiceNot published by Breville. Ask an authorised service centre for a quote.
Worth repairing?Depends on the cause and on prices Breville does not publish. Get a quote and compare it with a refurbished unit on an older machine.

How to check the error log

Switch the machine off at the wall. Hold the front Power button, switch the wall power back on and release when the logo appears. Enter the service password 00000, then open Error Counter (stored faults) or Live Debug (live temperatures and water levels). One technician video says the entry method differs between machines built before and after 2018, so if this does not work, do not keep trying.

Clear the log after a repair so you can tell whether the fault has really gone.

Beyond the fix

Did you knowBrewFix recommends replacing the older O-ring steam boiler probes and seals about every two years, to stop steam reaching the triac board above them.

Tips and tricks

  • If the machine feels warm long after switching off, unplug it and contact a technician.technician video
  • Probe check: a repairer says probes can be twisted by hand in their insulators when the O-ring is failing; this needs the lid off, so it is for a technician.technician video
  • Fixing the leak matters as much as replacing a damaged board.technician video

Common mistakes

  • Running the machine with a visible steam leak at the top.
  • Swapping the triac board alone when moisture caused the damage.

Easily confused with

  • ER18 is the reverse: the steam boiler fails to warm.

Further reading

Questions

What does ER26 mean on the Breville / Sage Oracle Touch?

Steam boiler overheated above target temperature. The steam boiler and its pump got hotter than the controller asked for. Technician sources describe two possible causes: the heater kept running when it was told to stop (a triac on the power board latched on), or the sensor under-reads because of a leak or steam at the probe seal. The machine cuts power to protect itself, and a technician source says repeated overheating can open a thermal fuse. ER26 is listed as the steam boiler overheating above its target. Technician videos describe a leaking steam probe seal as a classic cause: steam vents past the o-ring, heats the sensor cable, and the controller sees a runaway temperature. A triac on the power board latching the heater on is the more serious possibility.

Can I fix ER26 myself?

DIY difficulty: hard. Switch off at the wall immediately and let the machine cool for at least 60 minutes. Switch back on and watch the heat-up. If it reaches temperature normally and the code does not return, treat it as a one-off and descale as the manual describes.

How much does it cost to fix ER26?

Not published by Breville. Ask an authorised service centre for a quote. Not published by Breville. Ask an authorised service centre for a quote.

Is it worth repairing?

Depends on the cause and on prices Breville does not publish. Get a quote and compare it with a refurbished unit on an older machine.

When does ER26 typically show up?

Breville / Sage Oracle Touchs report ER26 any time. There is no reliable pattern to when it appears — treat any occurrence as real.

Can I keep using the machine with ER26 showing?

Treat it as a stop-using signal: ER26 marks a fault that can damage the machine (or worse) if you keep running it. Do the safe first steps below, then stop.

Will ER26 clear on its own?

Rarely. A reset or power cycle is worth one try, but ER26 with a "hard" difficulty rating almost always means a failed component that has to be replaced.

How long does the repair take?

This one is a bench repair for most owners — the teardown, test and reassembly are the bulk of the work, not the part itself.

How reliable is this page?Breville and Sage do not publish a table of error codes for these machines in the documents we found. The meanings on this page come from third-party repair references and owner reports, so treat them as lower confidence. If your machine shows a text alert, follow the on-screen text first. Model revisions can differ: if your machine behaves differently, tell us. See our editorial policy.