Section 1 Capacitive Discharge (Brushless)
Diagnostic Repair Manual 9
2. If load is within limits but frequency and voltage still
drop excessively, refer to flow chart.
Overloading a generator in excess of its rated wattage
capacity can result in damage to the generator and to
connected electrical devices. Observe the following to
prevent overloading unit:
• Add up total wattage of all electrical devices to be
connected at one time. This total should NOT be
greater than the wattage capacity of the generator.
• The rated wattage of lights can be taken from light
bulbs. The rated wattage of tools, appliances and
motors can be found on a data label or decal
affixed to the device.
• If the appliance, tool or motor does not give
wattage, multiply volts times ampere rating to
determine watts (volts x amps = watts).
• Some electric motors, such as induction types,
require about three times more watts of power for
starting than for running. This surge of power lasts
only a few seconds when starting such motors.
Make sure to allow for high starting wattage when
selecting electrical devices to connect to the generator:
1. Figure watts needed to start the largest motor.
2. Add to that figure the running watts of all other
connected loads.
Wattage Reference Guide
Device Running Watts Device Running Watts
*Air Conditioner (12,000 Btu) 1700 Hand Drill 250 to 1100
*Air Conditioner (24,000 Btu) 3800 Hedge Trimmer 450
*Air Conditioner (40,000 Btu) 6000 Impact Wrench 500
Battery Charger (20 Amp) 500 Iron 1200
Belt Sander (3") 1000 *Jet Pump 800
Chain Saw 1200 Lawn Mower 1200
Circular Saw (6-1/2”) 800 to 1000 Light Bulb 100
*Clothes Dryer (Electric) 5750 Microwave Oven 700 to 1000
*Clothes Dryer (Gas) 700 *Milk Cooler 1100
*Clothes Washer 1150 Oil Burner on Furnace 300
Coffee Maker 1750 Oil Fired Space Heater (140,000 Btu) 400
*Compressor (1 HP) 2000 Oil Fired Space Heater (85,000 Btu) 225
*Compressor (3/4 HP) 1800 Oil Fired Space Heater (30,000 Btu) 150
*Compressor (1/2 HP) 1400 *Paint Sprayer, Airless (1/3 HP) 600
Curling Iron 700 Paint Sprayer, Airless (hand held) 150
*Dehumidifier 650 Radio 50 to 200
Disc Sander (9") 1200 *Refrigerator 700
Edge Trimmer 500 Slow Cooker 200
Electric Blanket 400 *Submersible Pump (1-1/2 HP) 2800
Electric Nail Gun 1200 *Submersible Pump (1 HP) 2000
Electric Range (per element) 1500 *Submersible Pump (1/2 HP) 1500
Electric Skillet 1250 *Sump Pump 800 to 1050
*Freezer 700 *Table Saw (10") 1750 to 2000
*Furnace Fan (3/5 HP) 875 Television 200 to 500
*Garage Door Opener 500 to 750 Toaster 1000 to 1650
Hair Dryer 1200 Weed Trimmer 500
* Allow 3 times the listed watts for starting these devices.
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