We completed a comprehensive mechanical and electrical repair for a residential hot tub in San Diego. Our team diagnosed issues with the heating system and internal control unit to restore full functionality to the spa. We accessed the internal components by removing the wood-paneled siding and performed detailed testing on the electrical circuitry. We installed a new metal cylindrical heater assembly and secured it with black threaded unions to the existing white PVC plumbing. During the process, we utilized a digital clamp meter to verify electrical current and ensure the control board was operating within safety parameters. The repair involved navigating the internal spray foam insulation to reach the pump and heater housing before resealing the unit for use.