Skip to content
Open sponsorship. Site bar + newsletter spot, US$50/week.
GENERATORCODES

Home / Kohler / ATS ComError

RDC2

ATS ComError

ATS communication error

Transfer switch · Warning

Warning. TP-7092 displays ATS ComError when the ATS interface connection is lost. The check is the communication wiring between the transfer switch interface board and the generator set. OnCue Plus calls it ATS Communication Error.

Seen on: 14RCA, 14RCAL, 20RCA, 20RCAL, 26RCA, and 26RCAL sets with the RDC2 controller (TP-7092).

Likely causes

  • Communication wiring between the RXT interface and the generator open or disconnected.
  • A failed interface. The manual points at the wiring first.

Checks an owner can do

  1. Do not work inside the transfer switch. If a communications cable is visible and obviously unplugged outside a live cabinet, leave it for someone qualified to reseat.

When to call a pro

Transfer-switch communication wiring is dealer or electrician work. The generator may still run while this warning is up, but automatic transfer can be affected.

Source

Kohler TP-7092 9/23e, Operation manual for 14/20/26RCA and RCAL residential generator sets with the RDC2 controller, fault-message table.

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.

https://generatorcodes.com/brand/kohler/ats-comerror