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GENERATORCODES

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RS home standby display

13

Undervoltage

Electrical · Shutdown

Fault code 13. Causes in the RS20 manual: generator-set loads, wire connections, and windings. The corrective action is dealer service.

Seen on: Cummins RS-series home standby sets covered by the RS20 operator manual. QuietConnect RS13A–RS20AC operator manual A053X174 repeats these fault code numbers.

Likely causes

  • Voltage collapsed under load or because of windings or connections.

Checks an owner can do

  1. Switch off large loads so a technician is not starting into a shorted appliance. Do not measure live output unless you are qualified.

When to call a pro

The manual does not give an owner voltage repair. Call an authorized Cummins dealer.

Source

Cummins RS20 home standby operator manual, section 5 (fault codes and blink pattern). The same code numbers are listed in operator manual A053X174 for the RS13A, RS17A, RS20A, and RS20AC QuietConnect sets.

Wording follows that document. Firmware can change a threshold. If this page and the manual shipped with your unit disagree, follow the manual.

What fixed mine

No approved reports for this code yet. Send one. It stays in the review queue until it is approved.

Related Cummins codes

https://generatorcodes.com/brand/cummins/13