Can I fix this myself?

No. This fault sits on the technician side of the line — do the user-serviceable checks on this page and no more. Anything involving the boiler, a pressure valve, the heating element or internal wiring needs a qualified technician.

Where do these steps come from?

They are transcribed from Z10 (NAA) Instructions for Use, ch. 9 'Troubleshooting', p.35. We do not repair machines and we do not publish a fix we cannot cite to the manufacturer.

Will this code clear on its own?

Maintenance prompts clear when the cycle they are asking for is completed in full — stopping partway usually leaves the counter running. Fault codes clear when the underlying condition is corrected, not by power-cycling past them.

JURA Error 2: Heating disabled after cold exposure — Causes and Fixes

Call a technicianUpdated August 3, 2026

JURA · ENA 8, E6, E8, S8, J8, Z10, GIGA 6

Error 2 — Heating disabled after cold exposure

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What the machine is reporting

If the machine has been exposed to the cold for a long period of time, heating may be disabled for safety reasons.

Likely causes, most likely first

The machine has been exposed to the cold for a long period of time, so heating has been disabled for safety reasons

What to do

1. Warm the machine at room temperature. This is the only user action JURA publishes for this code — do not open the machine or attempt any work on the heating system.
2. If the message does not clear once the machine has reached room temperature, contact JURA customer support in your country.

Source: Z10 (NAA) Instructions for Use, ch. 9 'Troubleshooting', p.35. Transcribed from JURA's own published documentation — we do not repair machines and do not publish fixes we cannot cite.

When to stop and call a technician

This fault is on the technician side of that line. Do the user-serviceable checks above and no more.

The machine trips a breaker, smells of burning, or shows scorched wiring.
Water is leaking from inside the chassis rather than from the tank, tray or portafilter.
The fault involves the boiler, a pressure valve, the heating element or the pump itself.
The code returns immediately after a correctly completed reset or maintenance cycle.
The machine is under warranty — opening it yourself usually ends that cover.

Never bypass, disable or remove a safety device — a thermal fuse, pressure relief valve or lid interlock is the part standing between a fault and a fire. Do not open a pressurised boiler or work on mains wiring.

Machines this applies to

Other JURA codes

Clean — Cleaning programme due
Descale — Descaling programme due
Change the filter — Water filter exhausted
Clean the milk system — Milk system cleaning due
Rinse the milk system — Milk system rinse requested
Fill water tank (displayed although the water tank is full) — False water-empty message

All JURA error codes →

Frequently asked

What does JURA Error 2 mean?: If the machine has been exposed to the cold for a long period of time, heating may be disabled for safety reasons.
Can I fix this myself?: No. This fault sits on the technician side of the line — do the user-serviceable checks on this page and no more. Anything involving the boiler, a pressure valve, the heating element or internal wiring needs a qualified technician.
Where do these steps come from?: They are transcribed from Z10 (NAA) Instructions for Use, ch. 9 'Troubleshooting', p.35. We do not repair machines and we do not publish a fix we cannot cite to the manufacturer.
Will this code clear on its own?: Maintenance prompts clear when the cycle they are asking for is completed in full — stopping partway usually leaves the counter running. Fault codes clear when the underlying condition is corrected, not by power-cycling past them.