Compressor Check 1 – How Meg a Compressor
Disconnect Power to ODU. Ground the Black
Lead directly to compressor shell. Attach Red
Lead to one of the three terminals. Select MΩ
Scale. Press and hold the Test Button until test
completes. If 20MΩ or higher it’s good.
Between 10 & 20MΩ it’s going bad. Less than
10MΩ, Open or Continuity replace compressor.
Shown here is a basic Megger Meter.
• 2 Leads
• 1 Meg Test Setting
• 1 Ohm Setting
• 1 Continuity Setting