The Breville / Sage Oracle shows this code with identical meaning and fix as the Oracle Touch. Full guide for ER27.
Applies to: Oracle.
How to fix Error 27
- 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.
- If it returns, a technician would check the boiler fittings and sensor probe for leaks and replace perished o-rings.
- 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.
- 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.
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
| Parts | Not published by Breville. Ask an authorised service centre for a quote. |
|---|---|
| Service | Not 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
Leave the machine plugged in but switched off. Press and hold 1 CUP, 2 CUP and POWER together for at least one second. After the long beep the LCD shows the firmware version (starts with "Fr"). Press the SELECT dial once to open Error Storage, then rotate it to step through errors 1 to 32 and the stored count for each. Scroll past error 32 to "ErSt" and hold SELECT for 3 seconds to clear the log.
Clear the log after a repair so you can tell whether the fault has really gone.
Beyond the fix
Tips and tricks
- Note stored errors in the service menu, clear them and restart; a repairer says a genuine fault will reappear.technician video
- A video shows the temperature sensor is replaced by unplugging, cooling and opening the machine, so it is a job for a qualified technician.technician video
- Watch for hot water or steam appearing unprompted; that points to a switching fault and means unplugging at once.technician video
Common mistakes
- Continuing to pull shots on a machine that is overheating.
Easily confused with
- ER19 is the group head failing to warm, the opposite fault.
Further reading
Questions
What does Error 27 mean on the Breville / Sage Oracle?
Group head overheated above target temperature. The group head heater 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.
Can I fix Error 27 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 Error 27?
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.
Error 27 during startup or during use?
Breville / Sage Oracles report Error 27 any time. There is no reliable pattern to when it appears — treat any occurrence as real.
Can I keep using the machine with Error 27 showing?
Treat it as a stop-using signal: Error 27 marks a fault that can damage the machine (or worse) if you keep running it. Do the safe first steps below, then stop.
Will Error 27 clear on its own?
Rarely. A reset or power cycle is worth one try, but Error 27 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.