Senville Mini Split Error Codes Explained (2026)
🕒 Last updated:
Senville error codes — quick lookup
Common Senville (LETO / AURA / SENA) codes. Senville units are built on the Midea platform, so codes closely match Midea-based systems — confirm against your model's manual.
| Code | What it means | What to do |
|---|---|---|
EH 00 / EH 0A | Indoor EEPROM or parameter error (control-board memory) | Power off at the breaker ~3 min and restart; returns → pro (indoor board) |
EL 01 | Communication failure between indoor and outdoor units | Check signal wires are correct, tight, not crossed; cycle power; else pro |
EH 02 | Zero-crossing signal detection error (abnormal voltage/frequency) | Confirm a correctly sized dedicated breaker & stable voltage; persists → pro |
EH 03 | Indoor fan speed out of control | Confirm blower not blocked & filter clean; persists → technician (motor/board) |
EH 60 | Indoor room temperature sensor (T1) fault | Power-cycle; returns → technician (sensor/board) |
EH 61 | Indoor pipe/coil temperature sensor (T2) fault | Power-cycle; persists → technician (sensor) |
EH C1 / C2 / C3 | Refrigerant leak detected (or leak sensor out of range) | Technician — refrigerant work requires EPA 608, not DIY |
FH CC | Refrigerant leak-detection sensor malfunction | Power-cycle; persists → technician. Do not handle refrigerant |
EC 51 | Outdoor EEPROM parameter error (outdoor board memory) | Power off a few minutes; returns → pro (outdoor board) |
EC 52 / 53 / 54 / 56 | Outdoor sensor faults: coil (T3), ambient (T4), discharge, coil-outlet | Technician — outdoor sensor diagnosis/replacement |
EC 07 | Outdoor fan speed out of control (motor or board) | Clear debris around the outdoor unit; persists → pro (motor/board) |
EL 0C | System is low on / lacks refrigerant | Technician — diagnosing & recharging requires EPA 608 |
PC 00 | IPM module protection (inverter power module) | Power off several minutes, restart once; repeats → technician |
PC 01 | Over-/under-voltage (DC bus) protection | Check supply voltage & breaker sizing; persists → electrician/technician |
PC 02 | Compressor or IPM over-temperature protection | Ensure clear outdoor airflow & clean coil; repeats → technician |
PC 04 | Inverter compressor drive error (legacy 'P4') | Technician — outdoor board, fan motor, or compressor; high-voltage, not DIY |
Senville error codes are short two-character fault messages that a Senville ductless mini-split or heat pump shows on its indoor display when it detects a problem and stops to protect itself. Because Senville units are OEM-built on the Midea platform, the codes follow Midea conventions and are grouped by prefix: EH and EL point to indoor-side and communication faults, EC to outdoor sensor or motor faults, FH to the refrigerant-leak sensor, and PC to protection shutdowns such as voltage, over-temperature, or compressor-drive trips. To read a Senville error code, simply note the exact characters on the indoor unit’s display (for example EL 01 for an indoor-to-outdoor communication fault, or PC 04 for a compressor drive error) and match them to your model’s manual or Senville’s online reference guide. Simple faults often clear after cycling power at the breaker for a few minutes; sensor, refrigerant, compressor, or high-voltage codes require a qualified technician.
How to read a Senville error code
When a fault occurs the unit stops and shows a two-character code on the indoor
unit’s LED/LCD display (for example EL 01 or PC 04). Note the exact characters
and look them up before acting.
What the prefix points to
| Prefix | Area of the system |
|---|---|
| EH | Indoor unit hardware / sensor faults |
| EL | Communication & refrigerant-shortage faults |
| EC | Outdoor unit sensor / motor faults |
| FH | Refrigerant-detection sensor faults |
| PC | Protection (system / compressor / voltage) shutdowns |
Some displays show status messages, not faults: dF (defrost), CL/F (filter
reminder), and FP (low-temperature heating safeguard) need no repair.
What to do first
- Turn the unit off at the breaker for about 2–3 minutes, then restore power.
- Clean the indoor filter and clear any airflow blockages.
- For EL 01, confirm the interconnecting signal wires are correct and tight.
If the same code returns immediately, stop — it is a real hardware fault that a reset will not fix.
Sources
- Senville Help Center — LETO and AURA Series Error Code Reference Guides.
- Senville Support — P4 / PC 04 inverter compressor drive error and P0/P4 diagnostics; Senville LETO user manual.
Trademark note: “Senville” is a trademark of its respective owner (Aircon International Inc.). This page is an independent homeowner resource and is not affiliated with, authorized by, or endorsed by Senville. Brand and code references are used factually for identification and troubleshooting only.
Frequently asked questions
How do I read a Senville error code?
When the unit faults it stops and shows a two-character code on the indoor unit's LED/LCD display, such as EL 01 or PC 04. Write down the exact characters, then look them up in your model's manual or Senville's error-code reference guide to find the meaning and recommended action.
What does the E1 (EL 01) error mean on a Senville mini split?
EL 01 (shown as E1 on older single-character units) is a communication error between the indoor and outdoor units. It is most often caused by loose, miswired, or crossed signal wires, so confirm the interconnecting wiring is correct and tight; if it persists after a power cycle, have a technician check the boards.
Can I reset a Senville error code myself?
For minor faults you can turn the unit off at the breaker for about 2–3 minutes and then restore power, which clears transient codes. However, if the same code returns immediately it indicates a real hardware fault that a reset will not fix, and you should stop and diagnose the underlying problem.
Why does my Senville show dF, CL, or FP instead of an error?
These are normal status messages, not faults: dF means the outdoor unit is in defrost mode, CL/F are filter-cleaning or replacement reminders, and FP is a low-temperature heating safeguard. No repair is needed, though you should clean or replace the filter when prompted.
When should I call a professional for a Senville error code?
Call a licensed HVAC technician for any refrigerant code (EH C1/C2/C3, EL 0C), compressor or drive faults (PC 04, PC 02), voltage/IPM protection (PC 00, PC 01), and outdoor sensor or motor faults (EC series). Refrigerant handling legally requires EPA 608 certification, and compressor and high-voltage repairs are not safe DIY tasks.