Midea air conditioners display error codes on the indoor panel or wired remote controller. The prefix indicates the fault category:
- E Series: System protection & communication faults
- F Series: Component & sensor faults
- P Series: Inverter & system protection faults
- H Series: Hardware & fan motor faults
1.Switch Off Main Power:
Turn off the aircon using the wall isolator or main power switch (do not just use the remote control).
2.Wait for Full Discharge:
Leave the system powered down for 5 minutes to clear the system memory and discharge electrical components.
3.Power Back On & Observe:
Turn the power back on and run the unit. If the code reappears, the underlying fault is active and requires attention.
2. Complete Midea Error Code Reference
| Code | Meaning / Likely Cause | Severity | Recommended Action | Typical SG Cost |
| E1 | High Pressure Protection | High | Clean outdoor coils; check refrigerant level and pressure switch. | $90 – $180+ |
| E2 | Indoor Anti-Freeze Protection | Medium | Clean air filters; check for restricted airflow or low gas. | $90 (Filter/Coil Clean) |
| E3 | Low Pressure Protection | High | Requires a pressure test to locate and seal leaks before topping up gas. | From $180 |
| E4 | Indoor Room Temp Sensor Error | Medium | Inspect and replace the defective thermistor/wiring. | From $130 |
| E5 | Overcurrent Protection | High | Check supply voltage; inspect compressor and wiring. | Diagnostic + Electrical |
| E6 | Communication Error | High | Check outdoor isolator, tighten loose terminal connections, or inspect PCB. | Free check – $450 |
| E8 | Power Phase Protector Fault | High | Common on cassettes; check electrical phase/wiring connections. | Diagnostic visit |
| F0 | Refrigerant Leakage | High | Perform pressure test, seal leak point, and recharge refrigerant. | From $180 |
| F1 | Indoor Ambient Sensor Fault | Medium | Replace indoor ambient temperature sensor. | From $130 |
| F2 | Outdoor Temp Sensor Fault (Condenser) | Medium | Replace condenser coil temperature sensor. | From $130 |
| F3 | Outdoor Temp Sensor Fault (Compressor) | Medium | Replace discharge temperature sensor to prevent compressor overheating. | From $130 |
| F4 | Outdoor EEPROM Parameter Error | High | Reprogram EEPROM or replace outdoor PCB. | $130 (EEPROM) / $300–$600 (PCB) |
| F5 | Outdoor Fan Motor Speed Fault | High | Inspect fan for obstructions; replace fan motor or driver PCB if needed. | $200 – $350 |
| F6 | Evaporator Outlet Sensor Fault | Medium | Replace evaporator coil temperature sensor. | From $130 |
| P0 | IPM Malfunction | High | Inspect outdoor unit ventilation, wiring terminals, or replace inverter PCB. | $300 – $600 |
| P1 | Voltage Protection | High | Verify household supply voltage stability; check PCB sampling circuit. | $200 – $400 |
| P2 | Water Drainage Blockage | Medium | Vacuum drain lines and clear clog from drain pan immediately to prevent leaks. | From $90 |
| P4 | Inverter Module Overheating | High | Check outdoor ventilation, clean heat sink, or replace inverter PCB. | $300 – $600 |
| H6 | Indoor Fan Motor Malfunction | High | Clear fan obstruction; replace indoor fan motor or indoor PCB. | $200 – $350 |
3. DIY vs. Professional Technician Matrix
Warning: Operating your unit with active high-severity error codes (such as E1, E3, P0, P4, or H6) can lead to costly compressor or PCB burnout.
- Safe to DIY / Self-Check:
- E2 / P2: Clean or wash the indoor air filters, clear visible drain line blockages, or perform a drain pipe vacuum.
- E6: Verify that the outdoor unit isolator switch is turned ON.
- Power Reset: Perform a 5-minute hard reset at the wall switch for transient glitches.
- Requires Professional Repair:
- Sensor / Thermistor Faults (E4, F1–F6): Part replacement requiring multimeter testing.
- Gas Leaks & Pressure Issues (E1, E3, F0): Pressure testing, leak repair, and regulated refrigerant handling.
- Electrical & Inverter Board Faults (E5, F4, P0, P1, P4, H6): High-voltage board diagnostics, EEPROM reprogramming, or motor replacements.
