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RDC2

Engine Speed High

Engine speed high

Engine · Shutdown

Shutdown. TP-7092: engine speed exceeds 115 percent of normal running speed for more than 0.3 seconds. The only printed check is to contact an authorized dealer. This is the RDC2 high-speed shutdown. It is a different row from Frequency High.

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

Likely causes

  • Engine speed above 115 percent of normal for more than 0.3 seconds.

Checks an owner can do

The cited source does not list a homeowner check for this fault. Leave the set off and use the note below.

When to call a pro

Do not restart it. Overspeed protection exists to prevent mechanical damage, and the manual assigns the repair to a dealer.

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.

Related Kohler codes

https://generatorcodes.com/brand/kohler/engine-speed-high