E14
Meross Firmware Bootloader or System Crash

Thermostat shows E14 and cannot complete startup; display may freeze on logo.

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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

Corrupted firmware image due to interrupted update, Flash memory sector failure, Incompatible firmware version loaded

How to Fix / Troubleshooting

Safety: No additional electrical risk beyond normal operation, but avoid repeated power cycling.

Steps:

  • Attempt recovery mode: Some Meross models support a long-press on the main button during power-up to enter recovery or pairing mode. Consult the manual and try to re-add the device in the app.
  • Re-flash via app: If the thermostat appears briefly in the app, attempt a firmware repair or update if offered.
  • Stable power: Ensure the circuit is not dropping voltage during boot (loose breaker, overloaded circuit).

Resolution: If E14 persists and the device cannot be recovered via the app, the firmware or flash memory is irreparably corrupted. Replace the thermostat.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Microcontroller / Firmware Flash
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