Fault Codes / Daikin / U2-01

VRV / Sky Air — Supply voltage too low.

Possible causes

• Mains low / fuse / transformer.

Check steps

• Measure 3-phase voltage, check fuses.

Affected parts

• Netzteil-Platine
• Sicherungen
• Spannungsregler

Safety note

Source: Daikin VRV Service Manual — U2 sub-code

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

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