Firman W01687
Generator · W01687 portable inverter generator. Specs from the manufacturer page (checked ).

The FIRMAN W01687 is a portable inverter generator rated at 1600 running watts, with 2000 starting watts. It runs for up to 9 hours on a 0.9-gallon tank at 25% load and weighs 49.5 lbs. New units carry a 3-year warranty.
Key features
- 1600 running watts and 2000 starting watts
- Runs up to 9 hours on a 0.9-gallon tank at 25% load
- Weighs 49.5 lbs
- Tri-Fuel & Dual-Fuel
- New units have a 3-year warranty; refurbished units have a limited 90-day warranty
- Technical support from technicians in Peoria, AZ, 7 days a week
- Manuals available in English, Spanish, and French
What it is for
- camping
- tailgating
- home projects
Specifications
| Running watts | 1600 W |
|---|---|
| Peak / surge | 2000 W |
| Weight | 22.5 kg (49.6 lb) |
| Warranty | 3 years |
From the Firman page. Values the manufacturer does not publish are left out.
What is in the box
- Engine oil bottle
- Oil funnel
- Spark plug wrench
- Screwdriver
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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 34 →
- Wiring diagram, manual page 35 →
- Wiring diagram, manual page 36 →
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 W01687 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 2000 W peak. That is below a typical 1/2 HP sump pump start (about 2150 W); check your pump label. Use the calculator with your exact pump.