e5
Moderate
Daikin · Mini-Splits & Ductless Systems
Compressor Overload Protection
Quick Answer
Error code E5 on your Daikin Mini-Splits & Ductless Systems means: Compressor Overload Protection. This is usually fixable — see the step-by-step guide below.
Likely Causes
How to Fix It
1
Measure compressor amperage with a clamp meter and compare to the rated load amps on the nameplate
2
Check voltage at the outdoor unit disconnect (must be within 10% of rated voltage)
3
Inspect and test the compressor start components (capacitor, relay)
4
Clean the condenser coil to improve heat rejection and reduce compressor load
5
If compressor amperage consistently exceeds RLA, compressor replacement by a licensed technician is required
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Compressor start capacitor
Compressor (if failed)
Hard start kit
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