E13
Vokera
Firmware update / flash write error
Thermostat shows E13 and cannot complete firmware update
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Interrupted power or Wi‑Fi during update, Insufficient internal memory, Corrupted firmware image, Faulty flash memory on PCB
How to Fix / Troubleshooting
Safety first: Do not cut power during an active firmware update unless instructed by the manufacturer.
- Stable power and Wi‑Fi: Ensure the thermostat has a stable power supply and strong Wi‑Fi signal before retrying the update.
- Retry update: Use the Vokera app or thermostat menu to restart the firmware update process. Follow on-screen instructions carefully.
- Factory reset: If the thermostat remains functional but cannot update, perform a factory reset and then attempt the update again.
- If thermostat becomes unresponsive: Contact Vokera support. The unit may need to be replaced if the flash memory is corrupted beyond recovery.
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Repair Difficulty
Medium
3/5
Required Part
Vokera smart thermostat firmware / flash memory
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