Cummins/Onan TGHAA — WARNING

For the Cummins/Onan TGHAA.

Procedure

100 HOUR MAINTENANCE ALERT—CODE NO. 3 (The genset has accumulated another 100 hours of operation since the last maintenance alert) Corrective Action: Perform the required maintenance according to Periodic Maintenance. The alert can only be reset by means of a software command via network or PC. See your authorized Onan dealer. LOW OIL LEVEL ALERT—CODE NO. 4 (The controller sensed that the low oil level switch was open 1 minute after the genset stopped) Corrective Action: Check the engine oil level and add oil as necessary. Repair oil leaks. FAILURE TO START FAULT SHUTDOWN—CODE NO. 5 (The engine does not crank, or cranks [five 10 second cranks with 30 second rests] but does not start) Corrective Action—Engine Does Not Crank:
1. Replace Fuse F2 if blown.
2. Clean and tighten the positive (+) and negative (–) battery cable connections at the battery and at the genset (Page 8).
3. Recharge or replace the battery. Refer to the battery manufacturer’s recommendations. Corrective Action—Engine Cranks But Does Not Start:
1. Open any closed fuel shutoff valve.
2. 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.
3. Secure the spark plug cables at the spark plugs and at the ignition coil.
4. Make sure the governor rod is not hanging up on the spark plug cable (Page 8).
5. Check for proper fuel selection and change if necessary (Page 6).
6. Check the engine air filter and remove any blockage.

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.