Migliaccio & Rathod LLP is investigating reports of potential mixer and firmware compatibility problems affecting certain Kohler Rehlko 26RCA and 26RCAL home standby generators.

Technical documentation for the Kohler Rehlko 14/20/26 RCA generator family indicates that the 26RCA has different firmware requirements depending on the physical mixer and stepper hardware installed in the generator. The documentation states that one hardware version requires RDC2 firmware version 3.4.5 or later and directs technicians to Service Bulletin SB-823. Pasted markdown

Owners have also reported generators surging or sputtering during scheduled exercise cycles, with at least one technician reporting that a service bulletin called for replacement of the mixer or carburetor together with a specific firmware update. Pasted markdown

Migliaccio & Rathod is investigating whether certain Kohler Rehlko 26RCA or 26RCAL generators were manufactured with mixer hardware or firmware combinations that can cause unstable operation, exercise-cycle problems, or other performance failures.

Owners May Have Experienced:

Surging or sputtering during scheduled exercise;
Unstable engine speed;
Exercise-cycle shutdowns;
Mixer or carburetor replacement;
A dealer installing a specific RDC2 firmware update;
Continued problems after ordinary maintenance; or
Failure to reliably provide standby power.

Potential Claims May Include:

Defective mixer or fuel-control components;
Defective or incompatible firmware;
Breach of express or implied warranties;
Failure to provide an effective repair;
Loss of use or diminished product value; and
Violations of applicable consumer-protection laws.

Signs You May Be Affected:

You own a Kohler Rehlko 26RCA or 26RCAL standby generator;
Your generator surges or sputters during its exercise cycle;
Your dealer replaced the mixer or carburetor;
Your generator required RDC2 firmware version 3.4.5 or later;
A technician referenced SB-823 when repairing your Kohler Rehlko generator; or
Your generator continues to experience exercise or operating problems.

If you have encountered these issues, we would like to hear from you. Please complete the contact form on this page, send us an email at [email protected], or give us a call.

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