Daikin | Split/ Multi Split

Error Code HJ

Troubleshooting guide for the Daikin Split/ Multi Split system fault HJ.

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.

System Diagnosis

Malfunction of thermal storage tank water level

Potential Causes & Solutions

  • Low water level.
  • Defective switch setting.
  • Water level detecting sensor failure.
  • Defective connector contact.

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