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Home›Repair guides›Kohler›Position-Indicating Microswitch Test Procedure

Kohler — Position-Indicating Microswitch Test Procedure

Testing & diagnosis · position-indicating microswitches

From a Kohler service manual — check it applies to your exact model before use.

Applies to: Kohler RDT

Before you start

  • Disconnect power to the ATS before checking the switches.

Procedure

  1. Press the OFF button on the generator set controller.
  2. Disconnect the engine starting battery, negative lead first.
  3. Disconnect the battery charger and power to the ATS.
  4. Connect an ohmmeter or test lamp across terminals NO and C of switch LSN or SN2.
  5. Manually operate the transfer switch and verify the NO contact closes when pressed and opens when released.
  6. Repeat for the NC contact; NC should open when pressed and close when released.
  7. Verify no continuity between NO and NC terminals.
  8. Repeat steps for switch LSE or SE2.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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