Cummins Onan RV QG 2500i 2.5kW RV Generator LP Propane Single Phase 120V 2.5HGLAA-8310 New
The Cummins Onan 2.5HGLAA is an aesthetically pleasing quiet generator with 2.5 kW of power for RV. This generator is the quietest generator in its size. All of this while maintaining a low fuel consumption. Cummins backs this generator with a standard 3 year limited warranty.
Features
- 2.5 kW LP Powered RV Generator - QG 2500i (HGLAA) CARB: New CARB Compliant 2024 Model. Enough power to run a 13,500 BTU AC (30A 1-Pole Breaker).
- Designed For Use With Multiple Applications: Fifth wheels, travel and sport utility trailers (requires remote gas tank, not included).
- Cummins Onan 4-Cycle OHV Engine (.31 Gal/H @ 1/2 Load): Provides quiet operation w/ excellent fuel efficiency. Includes electric solenoid (LP).
- Inverted Electrical Output: High power quality for sensitive RV loads.
- Microprocessor Controlled: Digital voltage regulator prevents damaging voltage spikes. Provides added protection from overloads and faults.
- Sound-Attenuating Enclosure: Lowers noise levels while providing cross-flow cooling.
- Control Panel w/ LED Status Indicator Light: Start-Stop/Prime rocker switch. Provides set diagnostics. J1939 communications capable.
- USDA Forest Service Approved Spark Arrestor Muffler: 66 dB(A) @ 10 ft. (3M) - Quietest generator sets of their size.
- Magnetic circuit breaker & fused DC circuits (to protect wiring).
- 100" generator set output leads (12 AWG).
Specifications
| Item Number |
A074X612 |
| Model Number |
2.8HGLAA-8310 |
| Model Name |
RV QG 2500i |
| Fuel Type |
LP Vapor |
| Voltage |
120 Single-Phase |
| Frequency |
60 Hertz |
| RPM |
2900-3200 |
| Alternator |
Inverter |
| Auto Voltage Regulation |
Yes |
| Rated Watts |
2500 Watts |
| LP Fuel Consumption @ 50% Load |
0.31 gallons/hr |
| LP Fuel Consumption @ 100% Load |
.52 gallons/hr |
| Rated Amps |
20.8 Amps |
| Decibel Rating @ 10 ft. (3m) |
66 |
| Circuit Breaker Size |
30 Amps |
| Grade Type |
Recreational |
Manual
Specifications Sheet
hat our Experts Think
- Enables automatic remote generator control, allowing RV users to start/stop their Cummins Onan generator without manual operation
- Features wireless connectivity with mobile app integration, giving real-time access to generator status and settings
- Provides automatic start based on battery voltage or interior temperature thresholds, ensuring power is always available when needed
- Helps maintain optimal battery charge levels, reducing the risk of deep discharge during RV use or storage
- Supports manual, automatic, and voice-activated control modes, offering flexible operation depending on user preference
- Includes temperature sensor and harness kit, enabling smart climate-based generator activation
- Designed for seamless integration with compatible Onan RV gas/LPG generator sets, including the 5.5kW QG series
- Offers maintenance alerts and system notifications, helping users track service needs and fault codes easily
- Improves overall RV energy management efficiency, reducing fuel waste and unnecessary runtime
- Compact, plug-in style design for straightforward installation with minimal wiring complexity
Q&A
Q: What is the Cummins EC-AGS+ A065U664 used for?
A: It is a wireless automatic generator start system designed for Cummins Onan RV gas and LPG generators, enabling remote monitoring and automatic start/stop control.
Q: What does the EC-AGS+ do?
A: It automatically starts or stops the generator based on battery voltage, temperature settings, or user preferences to maintain RV power and comfort.
Q: Can it be controlled remotely?
A: Yes, it connects via a mobile app with Bluetooth, allowing users to monitor and control the generator, view status, and receive alerts.
Q: What features does it include?
A: It provides automatic generator start, system monitoring, fault code notifications, and maintenance reminders for easier generator management.
Q: What comes in the kit?
A: The package includes a gateway module, wireless temperature sensor, power harness, and Y-harness for installation.
Q: Is installation difficult?
A: No, it is designed for relatively simple plug-and-play installation with reduced wiring and wireless components.
Q: What generators is it compatible with?
A: It is compatible with most Cummins Onan RV gas and LPG generators, but compatibility depends on model (some exceptions apply).
Q: Why choose the EC-AGS+?
A: It provides hands-free generator automation, improved battery management, and remote control convenience—ideal for stress-free RV power management.
Maintenance Tips
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Keep firmware & app updated regularly: Ensures stable Bluetooth connectivity, accurate data, and improved auto-start performance for Onan RV generators.
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Check Bluetooth connection range (≈30 ft): Weak signal can interrupt remote start, monitoring, and maintenance alerts.
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Inspect wiring harness & connectors periodically: Ensure gateway, Y-harness, and power connections are firmly seated to avoid intermittent auto-start issues.
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Test auto-start & manual start monthly: Confirms system readiness for emergency operation and battery-charging triggers.
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Verify temperature sensor placement: Keep wireless sensors away from vents/sunlight for accurate climate-based auto-start control.
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Monitor generator battery condition: Weak batteries can prevent AGS activation even if the system commands a start.
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Review maintenance & fault alerts in app: EC-AGS+ provides maintenance reminders, generator hours, and diagnostic codes for preventive servicing.
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Keep controller dry and vibration-protected: Avoid moisture exposure and loose mounting in RV compartments.
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Ensure compatibility with generator model: Designed for fixed RV Onan gas/LP units; not for portable generators or lithium low-voltage start setups.
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Schedule routine generator servicing: AGS+ depends on a healthy generator system (fuel, oil, battery, and control board) for reliable auto operation.
Damage 
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