Cummins/Onan — 10-Amp Charger Alarm Settings Adjustment
Adjustments · 10-Amp battery charger
From a Cummins/Onan service manual covering: LT 100, LT 150, LT 200, LT 260, LT 30, LT 60. Check it applies to your exact model before use.
Applies to: Cummins/Onan TGHAA
Before you start
- AC power within the cabinet and the rear side of the cabinet door presents a shock hazard.
Procedure
- Open the cabinet door.
- Use a small screwdriver to turn the HI Alm or LO Alm adjustment potentiometers counterclockwise to decrease or clockwise to increase the alarm voltage.
- When finished, close and lock the cabinet door.
Tools required
- small screwdriver Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 12-volt Amazon eBay $11.99 FridayParts $65.01 charger LO Alarm 9 to 13 VDC (factory 12.5 VDC)
- 12-volt Amazon eBay $11.99 FridayParts $65.01 charger HI Alarm 14 to 19 VDC (factory 14.5 VDC)
- 24-volt SinoCMP $247.50 charger LO Alarm 18 to 25 VDC (factory 25 VDC)
- 24-volt SinoCMP $247.50 charger HI Alarm 27 to 36 VDC (factory 29 VDC)
- Alarm contacts rated 4 amperes at 120 VAC or 30 VDC
Full service-parts list: Cummins/Onan TGHAA →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.