Code U2-04: SP/MP - PAM overvoltage error
Issue Description & Safety Warning
The Daikin SkyAir/VRV BRC1E61 Detailed Error Codes has triggered a critical SP/MP - PAM overvoltage error alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Product scope: SkyAir Unit area: Outdoor unit Diagnosis: There is overvoltage between SP/MP and PAM(Single phase). If wire connections related to the PC board are normal, replace the outdoor unit PC board.
Source: Daikin Service Manual News M-11010: Error code sub-code in BRC1E61(71), SkyAir and VRV all models
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Daikin SkyAir/VRV BRC1E61 Detailed Error Codes Alarms
Daikin controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code U2-04 on the SkyAir/VRV BRC1E61 Detailed Error Codes identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Daikin's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 177 Daikin SkyAir/VRV BRC1E61 Detailed Error Codes codes.
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