What It Means
Malfunction of four way valve or cool/heat switchin.
Daikin Split & Multi-Split
Daikin Split & Multi-Split Error Code EA
Troubleshooting guide for the Daikin Split & Multi-Split system fault EA.
Possible Causes
- Defective four way valve.
- Shortage of gas.
- Defective outdoor unit PCB.
- Defective thermistor.
Not sure which one it is — or if it's none of these? Try ACLogics today.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
New to this code? Click to see why this happens
Full Diagnosis
Malfunction of four way valve or cool/heat switchin
All Recorded Causes
Defective four way valve Shortage of gas Defective outdoor unit PCB Defective thermistor
Verify Before Replacing Parts
- Confirm the exact Daikin model family and split/ multi split context before acting on a generic code description.
- Verify the sensor or thermistor reading against the expected range for the current operating condition, keeping in mind that defective four way valve.
- Check the sensor harness and board connection before condemning the sensor itself; on Daikin units this is also where you'd confirm shortage of gas.
- After the correction, run the system long enough to confirm the split/ multi split fault does not return under normal load.
Still unsure about this fault?
ACLogics walks you through Daikin Split & Multi-Split diagnostics step-by-step — so you confirm the cause before swapping parts.
