The E5 error in air conditioning systems varies depending on the brand and, in some cases, the model of the unit. Below is a detailed explanation of the E5 error code across various brands, along with recommended solutions:
General Electric
- Portable: Overcurrent protection error.
Solution: Unplug the unit and contact a qualified technician. - Minisplit: Open or short circuit in the outdoor temperature sensor.
Solution: Unplug the unit and contact a technician or electrician.
Carrier
- Indoor Unit: Open or short circuit in the evaporator coil temperature sensor (T2).
- Outdoor Unit: Voltage protection.
Midea
- General: Open or short circuit in the outdoor temperature sensor.
- Outdoor Unit: Compressor voltage protection.
Samsung
- Meaning: Open or short-circuited indoor heat exchanger sensor; faulty outdoor heat exchanger sensor.
Solution: Replace the indoor heat exchanger sensor.
York
- Meaning: Error in the evaporator coil temperature sensor.
Central Air Conditioners
- Code: E5.
- Meaning: Malfunction of the T3 sensor and high discharge pressure protection (P5).
Bosch
- Meaning: Open or short circuit in the evaporator coil temperature sensor (T2).
Daewoo
- Meaning: Issue with the outdoor unit temperature sensor or a faulty temperature connector.
Westinghouse
- Meaning: Open or short circuit in the T2 evaporator coil temperature sensor.
Trane
- No LED Light on the Outdoor PCB: Overcurrent protection.
- With LED Light on the Outdoor PCB: AC overload protection.
- Multi-Split Systems: Overcurrent prevention using reduced frequency.
- Mini TVR 5G:
- Indoor Unit: Voltage breaker protection malfunction.
- Outdoor Unit: Power voltage protection.
GREE
- Split Units: AC overcurrent protection. During operation:
- In cooling and drying modes: The compressor and outdoor fan stop, but the indoor fan continues running.
- In heating mode: All loads stop.
- Cosy Inverter Series: Overvoltage protection.
- Portable Unit: Overvoltage protection.
Solution: Turn off the unit, unplug it, wait 10 minutes, then plug it back in and restart.
Daikin
- Meaning: Fault in the inverter compressor motor or overheating.
Sharp
- Meaning: Overcurrent protection.
- Status:
- During cooling and drying, the outdoor fan stops while the indoor fan continues running.
- During heating, all loads stop.
- Indicators:
- The operation light blinks 5 times, then turns off for 3 seconds.
- The yellow indicator blinks 5 times, then turns off for 1 second.
- Causes:
- Unstable power supply voltage.
- Dirty evaporator.
- Excessive load combined with low supply voltage.
- Status:
Haier
- Meaning: Overcurrent protection limit.
