Ac indoor display e1 error

I asked FixBot your question and its reply is in italics. FixBot AI can make mistakes. Verify critical details from reliable sources.

I [FixBot] couldn't find a specific troubleshooting guide for this exact error in iFixit's knowledge base, but information found elsewhere on the web indicates that an E1 error code on a split air conditioner typically points to one of a few common issues:

• Temperature Sensor (Thermistor) Failure: The indoor room temperature sensor is disconnected, shorted, or faulty, preventing the control board from reading the ambient temperature.
• Communication Fault: A loose, corroded, or damaged wiring connection between the indoor and outdoor units.
• Control Board / Button Glitch: A temporary electronic latch or stuck button on the display panel requiring a system reset.

To troubleshoot, try cutting power to the air conditioner at the circuit breaker for 5 to 10 minutes to allow the control board to fully reset. If the error immediately returns, inspect the indoor unit's wiring connections and temperature sensor near the evaporator coil.