A-iPower AP3700i
3200 W, gasoline
Firman WH03344
Generator · Legendary Power. Specs from the manufacturer page (checked ).
The Firman WH03344 is a generator rated at 3300 running watts on gasoline and 3000 running watts on LPG, with 4125 starting watts on gasoline and 3750 on LPG. It is powered by a 193cc engine with a 1.8-gallon tank and provides 120-volt outlets, including a 30A twistlock. The control panel has covered outlets, and the product carries a 3-year warranty.
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Running
3300W
Peak / surge
4125W
Fuel
dual-fuel
Noise
58dB
Weight
40.8kg
Warranty
3yr
Key features
- Running watts 3300W on gasoline and 3000W on LPG; starting watts 4125W on gasoline and 3750W on LPG
- 193cc Max Pro series engine with recoil start and electric start
- Low oil shut-off and cast iron sleeve
- 1.8-gallon tank with up to 9 hours of run time at 25% load
- Outlets: one 5-20R 120V 20A duplex; one TT-30R 120V 30A twistlock (27.5A/120V/3300W); one USB-A (2.1A/5V DC/10W); one 12V DC power port (8.3A/12V DC/100W)
- Multi-featured control panel with covered outlets
- 3-year warranty
Specifications
| Running watts | 3300 W |
|---|---|
| Peak / surge | 4125 W |
| Fuel | dual-fuel |
| Tank | 6.8 L (1.8 gal) |
| Noise | 58 dB |
| AC output voltage | 120 volts |
| Weight | 40.8 kg (89.9 lb) |
| Warranty | 3 years |
From the Firman page. Values the manufacturer does not publish are left out.
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Connection and wiring
Follow the diagrams in the Firman manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
- Wiring diagram, manual page 3 →
- Wiring diagram, manual page 40 →
- Wiring diagram, manual page 41 →
- Wiring diagram, manual page 42 →
- Wiring diagram, manual page 43 →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| Circuit Breakers | The receptacles are protected by an AC circuit protector that trips if the generator is overloaded or an external short circuit occurs. | Disconnect all electrical loads and determine the cause before using the generator again. If overloading caused the trip, reduce the load. Reset by pressing the protector button. Continuous tripping may damage the generator or equipment. | 8 |
| Oil Warning Indicator Light | Indicates the oil has fallen below the minimum level. The engine stops automatically and will not start until the proper amount of oil is in the crankcase. | Check the oil level when this light turns on. Add the proper amount of engine oil to the crankcase before attempting to start the engine. | 8 |
| Overload Indicator Light | Connected devices have exceeded the generator's wattage or amperage capacity, or a power surge occurred. The AC Power light goes off, the engine keeps running, and power to the receptacles is cut. | Keep the total power drawn from all receptacles within the nameplate rating. | 8 |
| Circuit Breaker | The receptacles are protected by an AC circuit protector that trips if the generator is overloaded or an external short circuit occurs. | Disconnect all electrical loads and find the cause before using the generator again. If overloading caused the trip, reduce the load. Reset by pressing the button on the protector. Continuous tripping may damage the generator or equipment. | 9 |
| Output Ready | Stays on during normal operation. Turns off when the generator is overloaded. | — | 9 |
| AC Reset | The inverter has entered a protective state and AC output is interrupted. | Press the AC Reset Button to restore the output. | 12 |
6 of 13 codes. From the Firman manual. All 13 WH03242 / T09371 / H07553 / W03083 codes →
FAQ
Can the Firman WH03344 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 4125 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.