Key Diagnostic Steps:

• How to access service mode on Bradford White heat pump water heaters
• Reading error codes
• Using built-in component testing features

System Components Covered:

• Rotary swing compressor operation
• Electronic expansion valve (EEV) function
• Control board with relays and thermal switches
• Capacitor testing and replacement
• Temperature sensor diagnostics

Systematic Troubleshooting Approach:

• Find and read the service manual (often inside the unit)
• Identify error codes and their meanings
• Use service mode to test individual components
• Check wear items first (capacitors, thermal overloads)
• Verify compressor windings and refrigerant levels

The repair turned out to be a failed capacitor – a common wear item in any AC system. Roman shows the complete disassembly process, component identification, and successful repair. He also addresses common misconceptions about reliability and explains why these units typically need attention every 2-4 years. These are essentially air conditioning systems that cycle frequently, making wear components like capacitors more prone to failure.

Perfect for HVAC technicians encountering heat pump water heaters for the first time, this video proves that with the right approach and service documentation, any qualified tech can master these systems.