Expanded manufacturer code library
Kohler expanded error-code library
Choose the exact product family first. The same characters can have unrelated meanings on a different device.
Browse by platform
24 complete records in this directoryKohler standby generator code AC Sens Loss: meaning and exact next steps
AC Sens Loss means Generator AC output sensing was lost. Kohler classes it a warning after 1 second when no output is detected after crank disconnect, and a shutdown after 3 seconds when voltage was present and then lost. Detection begins 10 seconds after crank disconnect. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Accy PwrOver Warning: meaning and exact next steps
Accy PwrOver Warning means Warning. Accessory power overload — an overcurrent (short-circuit) fault on the accessory controller power output. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Advanced Diagnostic: meaning and exact next steps
Advanced Diagnostic means Shutdown during the reduced-speed portion of an exercise. The engine then restarts, runs at full speed for two minutes and stops; the controller returns to AUTO and the exercise schedule is unchanged. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code ATS ComError: meaning and exact next steps
ATS ComError means Warning. ATS communication error — the transfer-switch interface connection was lost. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code ATS PhaseRot: meaning and exact next steps
ATS PhaseRot means Warning. Transfer-switch phase rotation does not match, so the ATS will not transfer. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Aux Input: meaning and exact next steps
Aux Input means Shutdown. An optional customer-connected auxiliary input is closed (digital input from an optional PIM). This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Batt Chg Flt: meaning and exact next steps
Batt Chg Flt means Warning. Battery charger fault reported to the PIM from an external battery charger — not the controller's built-in charger. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Battery CrLo Warning: meaning and exact next steps
Battery CrLo Warning means Warning. Engine starting battery voltage fell below 11 VDC for more than 10 seconds. Inhibited during cranking; clears when voltage returns to an acceptable level. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Battery Voltage High: meaning and exact next steps
Battery Voltage High means Warning. Engine starting battery voltage rose above 16 VDC for more than 10 seconds. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Battery Voltage Low: meaning and exact next steps
Battery Voltage Low means Warning. Engine starting battery voltage fell below 12.5 VDC for more than 90 seconds while the engine was not running. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Engine Speed High: meaning and exact next steps
Engine Speed High means Shutdown. Engine speed exceeded 115% of normal running speed for more than 0.3 seconds. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Engine Speed Low: meaning and exact next steps
Engine Speed Low means Shutdown. Engine speed dropped below 85% of normal running speed for more than 3 seconds. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Exer Not Sch: meaning and exact next steps
Exer Not Sch means Warning. No exercise is scheduled on the controller. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Frequency High: meaning and exact next steps
Frequency High means Shutdown. Governed frequency exceeded 110% of the system frequency setpoint for more than 10 seconds. The check becomes active 10 seconds after engine start. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Frequency Low: meaning and exact next steps
Frequency Low means Shutdown. Governed frequency fell below 90% of the system setting for more than 10 seconds, or 1 Hz below it for more than 60 seconds. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Lo Crank Vlt: meaning and exact next steps
Lo Crank Vlt means Warning. Low cranking voltage — battery voltage dropped below 3.5 VDC during engine cranking. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Locked Rotor: meaning and exact next steps
Locked Rotor means Shutdown. No engine rotation was sensed during cranking; the set shuts down 3 seconds after detection. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Low Oil Level or Oil Pressure: meaning and exact next steps
Low Oil Level or Oil Pressure means Shutdown. The low-oil-pressure switch indicated low pressure for more than 5 seconds, or on the 26RCA the oil-level switch indicated low oil. Kohler states plainly that the low-oil-pressure shutdown does NOT protect against low oil level. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code MainPwrOverL: meaning and exact next steps
MainPwrOverL means Shutdown. Main power overload — an overcurrent (short-circuit) fault on the controller output. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Not in Auto: meaning and exact next steps
Not in Auto means Warning. The generator set is not in AUTO (standby) mode, so remote start and stop commands from a transfer switch or remote switch are ignored. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Over Crank: meaning and exact next steps
Over Crank means Shutdown. The controller made three unsuccessful starting attempts. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Spd Sens Flt: meaning and exact next steps
Spd Sens Flt means Shutdown. The engine speed sensor has failed, or the engine stalled. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Volts L1-L2 High: meaning and exact next steps
Volts L1-L2 High means Shutdown. Generator output voltage exceeded 120% of nominal system voltage for more than 2 seconds. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open record Kohler standby generator · exact codeKohler standby generator code Volts L1-L2 Low: meaning and exact next steps
Volts L1-L2 Low means Shutdown. Generator output voltage fell below 80% of nominal system voltage for more than 10 seconds. This answer applies only to Kohler residential standby generator sets using the RDC2/DC2 controller; the displayed fault text, warning/shutdown behaviour and available customer checks vary by model and controller firmware. Confirm against the operation manual for the exact model.
Open recordStructured depth, not empty permutations
Every published record carries a direct answer, scope, ordered fixes, risk notes and sources.
Device and manufacturer hubs share a consistent record system, but each answer carries the relevant controls, fault boundaries, consequences and official support entry point for that platform.
See the publication gate