Champion aXis 22kW
22000 W, dual-fuel
Generac Guardian 24kW
Standby generator. Specs from the manufacturer page (checked ).
The Generac Guardian 24kW is a standby generator with 24,000 W running output, rated at 24 kW on liquid propane and 22.5 kW on natural gas. It is a dual-fuel unit that uses a 12-volt AGM battery included with the generator.
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Running
24000W
Fuel
dual-fuel
Weight
209kg
Warranty
5yr
Key features
- Rated maximum continuous power 24 kW on liquid propane and 22.5 kW on natural gas
- Dual-fuel operation: liquid propane or natural gas
- Electronic fuel and ignition control for cost-efficient, lower-emission operation
- Built-in cellular connectivity for control and monitoring through Mobile Link (premium subscription required for some features)
- Remote diagnostics and oil level sensors for maintenance alerts
- Improved cold start performance for cold climates
- Sloped roof and rear air intake to reduce snow and ice intrusion
- Compatible with ecobee by Generac thermostats and Generac PWRcell battery systems
- 5-year limited warranty
- 100 A main line circuit breaker
What it is for
- Home backup
Specifications
| Running watts | 24000 W |
|---|---|
| Fuel | dual-fuel |
| Weight | 209 kg (460.8 lb) |
| Dimensions | 117.9 × 66.8 × 78 cm (46.4 × 26.3 × 30.7 in) |
| Warranty | 5 years |
From the Generac page. Values the manufacturer does not publish are left out.
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Generac Guardian 24kW comparisons
On our lists
Connection and wiring
Follow the diagrams in the Generac manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
Open the Generac manual (PDF) →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| Auxiliary Shutdown | Active alarm that must be cleared before the generator can start. | Verify the controller-face emergency shutdown switch is ON (I). Clear the alarm. If equipped, the rocker switch must be set to ON (I) to clear it. | 17 |
| Overcrank | Fault during initial startup. The generator may exceed the normal number of start attempts because air accumulated in the fuel system during installation. | Reset the alarm and restart up to two more times, if necessary. If the unit still fails to start, contact an IASD for assistance. Call service if it persists. | 19 |
| Battery Problem | Listed as a warning. Warnings do not disable the unit or require immediate correction. No specific description given. | Unless correctly trained to correct and clear warnings, contact an IASD or trained service technician. To clear the message, press OFF on the controller, then ENTER. Call service if it persists. | 26 |
| Canbus Error | Listed as a warning. Warnings alert the operator to conditions that do not disable the unit or require immediate correction. No specific description given. | Unless correctly trained to correct and clear warnings, contact an IASD or trained service technician. To clear the message, press OFF on the controller, then ENTER. Call service if it persists. | 26 |
| Charger Missing AC | Listed as a warning. Warnings do not disable the unit or require immediate correction. No specific description given. | Unless correctly trained to correct and clear warnings, contact an IASD or trained service technician. To clear the message, press OFF on the controller, then ENTER. Call service if it persists. | 26 |
| Charger Warning | Listed as a warning. Warnings do not disable the unit or require immediate correction. The manual notes a warning appears when the battery requires service. | Unless correctly trained to correct and clear warnings, contact an IASD or trained service technician. To clear the message, press OFF on the controller, then ENTER. Call service if it persists. | 26 |
6 of 54 codes. From the Generac manual. All 54 Guardian 24kW / Guardian 22kW / Guardian 26kW / Guardian 18kW codes →
FAQ
Can the Generac Guardian 24kW start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 24000 W output (no separate peak published). That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.