Cummins/Onan TGHAA — Corrective Action:

For the Cummins/Onan TGHAA.

Procedure

1. Turn the genset line circuit breaker OFF. If the genset runs without shutting down, run the genset with fewer connected loads.
2. Make sure the governor rod is not hanging up on the spark plug cable (Page 8).
3. Replace Fuse F3 (carburetor de-icer) if blown.
4. Fill the LPG fuel tank if less than half full. On cold days the LPG container may have to be kept at least half full to provide the rate of vaporization required to keep up with genset fuel demand. LPG with more than 2.5 percent butane will not vaporize below 32° F (0° C). Use HD-5 grade LPG.
5. Secure the spark plug cables at the spark plugs and at the ignition coil.
6. Check for proper fuel selection and change if necessary (Page 6).
7. Check the engine air filter and remove any blockage.
8. Check for a blocked exhaust system and service as necessary.
9. Replace the spark plugs and/or spark plug cables. ENGINE ACCESSORY FAULT SHUTDOWN—CODE NO. 17 (The controller sensed an accessory overload) Corrective Action: See the Service Manual. GOVERNOR ACTUATOR FAULT SHUTDOWN—CODE NO. 19 (The controller sensed an overload in the governor actuator circuit) Corrective Action: See the Service Manual. LOW OIL PRESSURE CUTOFF SWITCH FAULT ALERT—CODE NO. 23 (The controller sensed that the switch did not close within 1 minute after the genset stopped) Corrective Action: See the Service Manual. TEMPERATURE SENDER FAULT ALERT—CODE NO. 24 (The controller did not sense a temperature change during the first 5 minutes of operation) Corrective Action: See the Service Manual. (Note that under this condition the controller will limit gen- set output to 3.5 kW.) Redistribution or publication of this document, by any means, is strictly prohibited.

Source: manual:965-0101B Onan TGHAA Genset Operator manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.