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  1. Johnstone Supply Support
  2. General
  3. FAQ and Tech Tips

FAQ and Tech Tips

  • How To Test For Bad Thermostat Wires
  • EZ16 ECM Install Tips
  • Compressor Wiring Diagram
  • MicroChannel Best Practices and Repair - R407c (GAW) and R410a
  • Transformer and Power Phasing - Reversed Polarity
  • Flame Rectification
  • Thermocouples and How to Test Them
  • 3 or 4 Wire? Condenser Fan Motor Wiring
  • Total External Static Pressure Testing - T.E.S.P.
  • Capacitor 101
  • RX11 Flush Instructional Video
  • ECM Motor Diagnostics
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