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Bay Area HVAC Service

Ac Repair · Clayton ·

Nest Error in Clayton, CA: Wiring Repair on a Rheem AC System

Rheem outdoor AC unit in Clayton, with its coil visible behind the cabinet grille

Equipment

  • Rheem air-conditioning system with a Nest thermostat

Nest error and damaged AC wiring in Clayton

Problem: A Nest thermostat error brought us to this home in Clayton. The air-conditioning equipment was Rheem.

Diagnostics: We found a damaged communication wire and checked the system’s pressure and performance. Outside, dust and debris were caught behind the grilles of the two outdoor units. We recommended a deep cleaning for both.

Solution: We repaired the damaged wire. The outdoor-unit cleaning was a separate recommendation for later work.

Result: The system works again after the wiring repair. If your Nest displays an error, save a photo of the message for the technician before clearing it. We came back on October 8 for the coil cleaning: see the before and after.

We repair Rheem air conditioners in Clayton and across the East Bay. See our AC repair service.


Photos

Rheem outdoor AC unit in Clayton, with its coil visible behind the cabinet grille
Rheem outdoor AC unit in Clayton, with its coil visible behind the cabinet grille

Project completed by Andrew Kuznetsov and the Bay Area HVAC Service team. Andrew is the founder and owner of Bay Area HVAC Service (ADRIUM Service Solutions). He holds a California Contractor License (CSLB #1136642), EPA 608 certification, and completed Daikin factory training in Houston in 2025.

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