Error-code hub
Senville displays an alphanumeric code on the indoor unit, and the 44 codes below cover the AURA, ELITE and LETO lines. Senville builds on a Midea control platform, so the EC, EH and PC code families here match those on ACiQ and Midea systems - if you have cross-shopped those brands, the diagnostics will look familiar.
Unit applicability
This table is sourced for LETO Series. If your unit is a different generation or product line not named here, the same display code may vary by generation.
Common codes first
Ranking basis: we do not have failure-frequency telemetry. These are ordered by breadth of affected systems in the SplitAtlas catalog - the documented product line's published model count, whether the same code appears on more than one product line, and any manual applicability notes we hold. This is a breadth ranking, not a popularity claim.
EC07 means the outdoor unit is not seeing outdoor fan speed in the range it expects. The fan may be blocked, failing, or not being driven correctly.
EC51 means the outdoor control board is not getting valid feedback from its EEPROM memory. This is not a remote setting or homeowner-adjustable parameter.
EC52 means the outdoor coil temperature reading is outside the valid electrical range. The system cannot safely judge outdoor coil temperature.
EC53 means the outdoor ambient-air temperature reading is not believable to the board. The system may stop because it cannot apply outdoor operating limits correctly.
EC54 means the discharge temperature sensor signal is out of range. The system cannot verify compressor discharge temperature, so it should not be forced to keep running.
EC56 means the system cannot trust the indoor coil outlet temperature sensor located at the outdoor low-pressure valve circuit.
Safe first checks
These codes have homeowner-safe steps such as filters, airflow, condensate/drain checks, remote/controller items, or a single safe power reset. If the code returns, stop at the boundary in the card.
Turn the unit off and look only through the outdoor grille for obvious leaves, snow, or debris. Remove loose debris outside the cabinet, restore power once, and stop if EC07 returns.
Read the full code guideTurn the system off with the remote, then power cycle once at the breaker or disconnect if you can do that safely. Expected result: a temporary control fault clears; if the code returns, stop resetting and schedule service.
Read the full code guideTurn the system off with the remote, then power cycle once at the breaker or disconnect if you can do that safely. Expected result: a temporary control fault clears; if the code returns, stop resetting and schedule service.
Read the full code guideTurn the system off with the remote, then power cycle once at the breaker or disconnect if you can do that safely. Expected result: a temporary control fault clears; if the code returns, stop resetting and schedule service.
Read the full code guideUse the Senville catalog to connect these manual error codes to current model pages and replacement options.
LETO Series
LETO Series
LETO Series
LETO Series
LETO Series
LETO Series
DF is a normal defrost display. The Senville LETO guide says no action is needed during this normal operation.
CL is a Senville LETO filter cleaning reminder. It is shown briefly at power-on to prompt filter maintenance.
FP is a normal low-temperature heating display used around 8 degrees C. It does not mean a component has failed.
FC is a forced-cooling display. The Senville guide treats it as an operating mode to check if it was accidentally enabled.
AP means the unit is in Wi-Fi pairing mode. It is not an HVAC fault by itself.
CP means the unit was turned off by remote command. It is a status display, not a failed part.
F is a filter replacement reminder on some Senville LETO models. It is a maintenance display, not a refrigeration or electrical fault.
EC07 means the outdoor unit is not seeing outdoor fan speed in the range it expects. The fan may be blocked, failing, or not being driven correctly.
EC51 means the outdoor control board is not getting valid feedback from its EEPROM memory. This is not a remote setting or homeowner-adjustable parameter.
EC52 means the outdoor coil temperature reading is outside the valid electrical range. The system cannot safely judge outdoor coil temperature.
EC53 means the outdoor ambient-air temperature reading is not believable to the board. The system may stop because it cannot apply outdoor operating limits correctly.
EC54 means the discharge temperature sensor signal is out of range. The system cannot verify compressor discharge temperature, so it should not be forced to keep running.
EC56 means the system cannot trust the indoor coil outlet temperature sensor located at the outdoor low-pressure valve circuit.
EH0 means the indoor main board and display board are not exchanging the expected signal. Senville points to wiring between the boards or either board as the repair area.
EH00 means the indoor control board is not getting valid feedback from its EEPROM memory. This usually appears after installation, service, or a board fault.
EH02 points to an indoor control-board electrical timing signal fault. The Senville guide identifies indoor PCB replacement as the repair path.
EH03 means the indoor blower is not reporting a normal speed. A clogged washable filter or blocked outlet can contribute, but repeated EH03 usually needs motor/board diagnosis.
EH0A is another homeowner-facing indoor EEPROM parameter display. It points to the indoor board memory/configuration path, not a remote setting.
EH60 means the indoor unit cannot trust the room-temperature sensor. Comfort can swing or the unit may stop because it does not know the room temperature accurately.
EH61 means the indoor evaporator coil temperature sensor is out of range. The system cannot protect the indoor coil accurately.
EHC1 is a refrigerant leak detection alarm. Senville directs technicians to leak-test the system and recharge after repair.
EHC2 combines a refrigerant leak alarm with a refrigerant sensor operating out of range. Senville identifies both sensor replacement and refrigerant-line repair as possible work.
EHC3 means the refrigerant sensor is not operating within its expected range. Senville identifies sensor replacement as the repair path.
EL01 means at least one indoor unit and the outdoor unit are not exchanging control signals reliably. The two sides of the system cannot coordinate normal operation.
EL0C means the unit detects insufficient refrigerant. Senville's detailed article lists installation issues, improper valve positions, excessive pipe length, and refrigerant leakage as common causes.
FHCC means the refrigerant sensor module is not operating normally. Senville identifies replacement of the sensor module as the repair path.
LC06 means the inverter power module temperature is too high. Senville points to improving cooling and ventilation.
PC00 means the outdoor inverter power module reported an abnormal compressor-drive condition. It can shut the system down to protect expensive electronics and the compressor.
PC01 means the outdoor unit saw supply voltage or DC bus voltage outside the expected range. It may be a utility/brownout issue, wiring issue, or outdoor-board fault.
PC02 means the system protected the compressor top or inverter module from high temperature. Dirty airflow can contribute, but repeated PC02 can point to sealed-system, compressor, or board problems.
PC03 means the refrigerant pressure protection circuit opened on either low or high pressure. This is sealed-system diagnosis, not a code to keep clearing.
PC04 means the outdoor inverter drive could not operate the compressor normally. This can involve the compressor, IPM, outdoor board, or drive wiring.
PC06 means the compressor discharge temperature has exceeded the protected range. Senville points to coil cleanliness, refrigerant condition, and airflow.
PC08 means current draw is outside the safe range. Senville points to current draw, fan resistance, and wiring checks.
PC0A means the outdoor condenser temperature is too high. Senville points first to condenser cleaning and outdoor airflow.
PC0F means the power factor correction circuit has protected or faulted. This is an outdoor electrical power-board diagnostic.
PC0L means the system is protecting itself because outdoor conditions are below the allowed operating range for that mode. This is usually an operating-limit condition, not a failed part.
PC10 is in Senville's PC 10-12 group for AC voltage and DC bus issues. These are outdoor power-electronics protections.
PC11 is in Senville's PC 10-12 group for AC voltage and DC bus issues. These are outdoor power-electronics protections.
PC12 is in Senville's PC 10-12 group for AC voltage and DC bus issues. These are outdoor power-electronics protections.
PC30 is in Senville's PC 30-31 group for system pressure protection. It points to refrigerant charge and blockage checks.
PC31 is in Senville's PC 30-31 group for system pressure protection. It points to refrigerant charge and blockage checks.
PC40 is in Senville's PC 40-46 group for compressor control or signal issues. The guide points technicians to the compressor, sensors, and control boards.
PC41 is in Senville's PC 40-46 group for compressor control or signal issues. The guide points technicians to the compressor, sensors, and control boards.
PC42 is in Senville's PC 40-46 group for compressor control or signal issues. The guide points technicians to the compressor, sensors, and control boards.
PC43 is in Senville's PC 40-46 group for compressor control or signal issues. The guide points technicians to the compressor, sensors, and control boards.
PC44 is in Senville's PC 40-46 group for compressor control or signal issues. The guide points technicians to the compressor, sensors, and control boards.
PC45 is in Senville's PC 40-46 group for compressor control or signal issues. The guide points technicians to the compressor, sensors, and control boards.
PC46 is in Senville's PC 40-46 group for compressor control or signal issues. The guide points technicians to the compressor, sensors, and control boards.
PH90 is in Senville's PH 90/91 evaporator temperature protection group. The first safe checks are airflow and filters.
PH91 is in Senville's PH 90/91 evaporator temperature protection group. The first safe checks are airflow and filters.