The Breville / Sage Barista Touch Impress shows this code with identical meaning and fix as the Barista Touch. Full guide for ER02.
Applies to: Barista Touch Impress.
How to fix ER02
- Switch the machine off at the wall, wait 60 seconds and switch it back on. A one-off reading glitch clears; a real open circuit comes straight back.
- Reaching the ThermoJet (ferro) heater temperature sensor (NTC) plug means opening the machine, which is technician work. A technician would check that plug on the control board for corrosion or heat marks and test the sensor circuit. Tell them the code you see.
- Look under and around the machine, from the outside, for water trails. Moisture on a connector can read as an open or short circuit; a technician would find and fix the leak behind it, often a boiler o-ring or hose clip.
- If the code returns, the ThermoJet (ferro) heater temperature sensor (NTC) or its wiring needs replacing by a technician.
- Afterwards, clear the stored error (see how to read the error log below) so you can tell whether it recurs.
When to stop and call a repairer
Stop and book service if you see water leaking, a burning smell or any scorch marks. Do not open the machine yourself.
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? | Often yes for a single sensor, but Breville does not publish repair costs. Get a quote first, especially on an older machine. |
How to check the error log
Unplug the machine. Press and hold the Power button while plugging it back in. When the password screen appears, enter 02015 to open Service Mode, then open the error log.
Clear the log after a repair so you can tell whether the fault has really gone.
Beyond the fix
Tips and tricks
- If the code returns after a restart and a descale, it needs a qualified technician. They would test the sensor and its wiring and replace the heating element, usually with fresh O-rings and a leak test.technician video
Common mistakes
- Running the machine again and again after the code appears instead of noting it and getting it checked.
Further reading
Questions
What does ER02 mean on the Breville / Sage Barista Touch Impress?
Ferro heater temperature sensor open circuit detected during operation. The control board cannot read the ThermoJet (ferro) heater temperature sensor (NTC). On this code the sensor reads as an open circuit: the wire has come off, the plug is loose or corroded, or the sensor itself has failed. Because it dropped out mid-cycle, a loose or heat-damaged connection is the most likely cause. Breville does not publish this code table, so the meaning comes from third-party service tables.
Can I fix ER02 myself?
DIY difficulty: hard. Switch the machine off at the wall, wait 60 seconds and switch it back on. A one-off reading glitch clears; a real open circuit comes straight back. Reaching the ThermoJet (ferro) heater temperature sensor (NTC) plug means opening the machine, which is technician work. A technician would check that plug on the control board for corrosion or heat marks and test the sensor circuit. Tell them the code you see.
How much does it cost to fix ER02?
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?
Often yes for a single sensor, but Breville does not publish repair costs. Get a quote first, especially on an older machine.
When does ER02 typically show up?
Breville / Sage Barista Touch Impresss report ER02 while brewing or steaming. That timing is a useful clue when narrowing the cause.
Can I keep using the machine with ER02 showing?
Usually you can finish the drink you are making, but do not ignore it — the underlying fault rarely heals itself. Work through the cheap checks first.
Will ER02 clear on its own?
Rarely. A reset or power cycle is worth one try, but ER02 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.