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Midea High wall ductless DLFSHB Error Codes
Many Midea-built brands use this same code set. Older Midea units show short codes (for example E1 instead of EL 01).
| Code | Meaning | What to check |
|---|---|---|
| EH 00 / EH 0A | Indoor unit EEPROM parameter error. | Indoor control board. |
| EL 01 | Indoor/outdoor unit communication error. | Interconnect wiring, terminal screws, power at the outdoor unit. How to fix → |
| EH 02 | Zero-crossing signal detection error. | Supply power and indoor board. |
| EH 03 | Indoor fan speed outside the normal range. | Indoor fan motor, blower wheel binding, connector. |
| EH 30 | Low voltage protection of the indoor external fan. | |
| EH 31 | Over voltage protection of the indoor external fan. | |
| EH 0b | Indoor PCB / display board communication error. | Display board cable and connectors. |
| EH 60 | Indoor room temperature sensor T1 open or shorted. | Measure the sensor; check the connector. How to fix → |
| EH 61 | Evaporator coil temperature sensor T2 open or shorted. | Measure the sensor; check the connector. How to fix → |
| EC 07 | Outdoor fan speed outside the normal range. | Outdoor fan motor, obstruction, connector. |
| EC 51 | Outdoor unit EEPROM parameter error. | Outdoor control board. |
| EC 52 | Condenser coil temperature sensor T3 open or shorted. | Measure the sensor; check the connector. How to fix → |
| EC 53 | Outdoor ambient temperature sensor T4 open or shorted. | Measure the sensor; check the connector. How to fix → |
| EC 54 | Compressor discharge temperature sensor TP open or shorted. | Measure the sensor; check the connector. How to fix → |
| EC 56 | Evaporator coil outlet sensor T2B open or shorted. | How to fix → |
| EL 0C | Refrigerant leak detected. | Leak search, starting at the flare connections. How to fix → |
| PC 00 | IPM malfunction or IGBT over-strong current protection. | Inverter board and compressor. How to fix → |
| PC 02 | Compressor top high temperature protection (OLP). | Charge, outdoor airflow, dirty coil. |
| PC 03 | Pressure protection. | Charge, airflow, closed service valve, restriction. |
| PC 06 | Compressor discharge temperature protection. | Low charge or restriction is the usual cause. How to fix → |
| PC 08 | Outdoor current protection. | |
| PC 0A | Condenser high temperature protection. | Dirty outdoor coil, blocked airflow, outdoor fan. |
| PC 0F | PFC module malfunction. | |
| PC 0L | Outdoor ambient temperature too low (below the operating range). | |
| PC 10 | Low voltage protection. | Supply voltage under load. How to fix → |
| PC 11 | Over voltage protection. | Supply voltage. How to fix → |
| PC 12 | DC voltage protection. | How to fix → |
| PC 40 | Communication error between the outdoor main chip and the compressor drive chip. | How to fix → |
| PC 41 | Current input detection protection. | |
| PC 42 | Compressor start error. | |
| PC 43 | Lack of phase protection. | Compressor U/V/W wiring and terminals. |
| PC 44 | No-speed protection. | |
| PC 45 | 341 PWM error. | |
| PC 46 | Compressor speed malfunction. | |
| PC 49 | Compressor overcurrent protection. | How to fix → |
| PH 09 | Anti-cold-air in heating mode (normal at heating start-up; not a fault). | |
| PH 90 | Evaporator coil temperature too high protection. | Dirty filter or indoor coil, indoor fan speed. |
| PH 91 | Evaporator coil temperature too low protection. | Dirty filter, low indoor airflow, low charge. |
| - - | Indoor units calling for conflicting modes (multi-zone). Not a failure. |
How to read the codes
- EH = indoor, EC = outdoor, EL = communication or refrigerant, PC = protection (compressor, inverter, voltage). LC/LH codes mean the unit is limiting compressor speed; 'nA' means no fault.
- A garbled or unlisted code can be a temperature reading. Make sure it isn't before chasing it.
- If the display works but the unit ignores the remote, Midea points to the indoor PCB. If the unit responds but nothing shows after pressing LED, it points to the display board.
Codes point to a circuit, not a part. Test before replacing boards or sensors. Inverter boards hold a dangerous charge after power-off; wait and verify DC bus voltage is gone before touching them. Refrigerant work requires EPA 608 certification.
Source: Midea DLFSHB High Wall Ductless Service Manual, Table 9 Error Codes, p. 17 (copy on ManualsLib). The "meaning" column follows the manufacturer's wording; "what to check" is our field summary. Always go by the label on the furnace you're working on.
Related
- Mini-split communication error troubleshooting
- Mini-split flare connections (the usual leak point)
- Look up any mini-split code
Other brands
- Daikin FTX / FVXS / FDMQ with RXL outdoor (19 Series)
- Fujitsu Halcyon / Airstage splits (indicator lamp codes)
- MRCOOL DIY E Star 4th Generation
- Mitsubishi Electric MSZ-GL / MSY-GL (failure mode recall)
- Senville AURA / LETO
- LG Single / multi-split wall units (CH codes)
- Gree Livo / All-Match with LIV outdoor (R-32)
- Pioneer Diamante / Quantum (WYT-17, WYT-20, WYT-24, WYT-25, WYT-FA)
- Lennox Mini-splits: MLB / MPC / 3PC outdoor with M22A, M33C, MWMC, MCFA/B, MFMA indoor
- ACiQ Single-zone wall mount, R-454B (ACiQ-xxWS / -xxW-BL with -xxZS / -xxZPL outdoor)
- Klimaire KSIE inverter wall mount (2014–2016 models, e.g. KSIE012-H120-SW)
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