Thermostat shows E14 and the time/schedule will not stay accurate or sync with the app.

Safety first: No high-voltage work is required.

Steps to try:

• Check Wi‑Fi and cloud status: Ensure the thermostat is online in the Mysa app and that other cloud features (remote control) work.
• Manually set time: If supported, set the time and date manually on the thermostat or in the app and see if it holds after a power cycle.
• Sign out/in of app: Log out of the Mysa app, then log back in to force a resync.
• Factory reset: As a last resort, perform a factory reset and reconfigure the thermostat.

If E14 persists and the time drifts significantly even with a stable network, the internal RTC or its backup circuitry may be defective. Replace the thermostat.