User Manual for Sealey GI2300 and GI3500 Inverter Generator

Comprehensive user guide for the Sealey GI2300 and GI3500 Inverter Generators. Includes essential safety warnings, setup instructions, maintenance schedules, and troubleshooting steps.

Quick answers from the manual

Quick answer

The Sealey GI2300/GI3500 is an inverter generator shipped without oil. You must fill it with 0.45L of SAE 15W-40 oil before the first start. It is designed for outdoor use only. p. 1, 3

Key actions

Starting the engine p. 4
Stopping the engine p. 4

First start

Fill with oil (0.45L SAE 15W-40), fill with unleaded petrol, place on level surface, follow starting procedure. p. 1, 3, 4

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Problems and fixes

No power produced

Press the DC protector to ON. If AC pilot light is off, stop the engine and restart.

p. 6

Maintenance and reset

Change oil every 50 hours or 3 months (or 25 hours if heavy load). p. 5

Technical specifications

Parameter	Value	Meaning	Pages
Engine Oil Capacity	0.45L	Required oil volume	p. 3
Fuel Tank Capacity	13L	Fuel storage capacity	p. 2
Max Power (GI2300)	2300W	Maximum output	p. 2
Max Power (GI3500)	3500W	Maximum output	p. 2

Where to find it in the PDF

Specifications p. 2
Operation p. 2, 3, 4
Maintenance p. 5, 6

Table of contents

Manual images

Click an image to enlarge

Page 2

Page 3

Page 4

Quick Guide from the Manual

The Sealey GI2300 and GI3500 are inverter generators designed for outdoor use. Important: The unit is shipped without engine oil. You must fill the oil before the first start. Always operate on a level surface and ensure adequate ventilation to avoid carbon monoxide poisoning.

Safety Information

Outdoor Use Only: Never use inside buildings, enclosures, or caravans.
Ventilation: Exhaust gases contain deadly carbon monoxide.
Fuel Safety: Petrol is highly flammable. Never refuel while the engine is running or hot.
Electrical Safety: Ensure the generator is grounded. Do not exceed the rated wattage.
No Modifications: Do not tamper with the engine governed speed setting.

Operation

Starting the Engine

Turn the Economy Control Switch (ECS) to "OFF".
Turn the fuel cock knob to "ON".
Turn the engine switch to "ON".
Pull the choke knob fully out (not required for a warm engine).
Grasp the carrying handle and pull the recoil starter briskly.
Once started, allow the engine to warm up, then return the choke knob to the original position.

Stopping the Engine

Turn off any connected electrical devices.
Turn the ECS to "OFF".
Disconnect electrical devices.
Turn the engine switch to "STOP".

AC and DC Connection

For AC power, ensure the total load is within the rated output. For battery charging (12V DC), ensure the DC protector is turned on, connect the red lead to the positive (+) terminal and the black lead to the negative (-) terminal.

Maintenance

Regular maintenance is essential for safe and economical operation.

Engine Oil: Check before each use. Replace after the first 20 hours, then every 50 hours or 3 months. Use SAE 15W-40. Capacity: 0.45L.
Air Filter: Check before each use. Clean every 50 hours or 3 months.
Spark Plug: Check and adjust gap (0.6-0.7mm) every 100 hours or yearly.
Muffler/Spark Arrester: Clean carbon deposits every 50 hours or 3 months.

Storage

For long-term storage, drain the fuel from the tank and carburetor, remove the spark plug, pour a tablespoon of SAE 10W-30 oil into the cylinder, and pull the recoil starter to coat the cylinder walls.

Manufacturer information

Sealey Group

Brand profile

Manufacturer website Open official website Support Open support

Practical help

Common problems

Engine will not start

Check oil level (low oil sensor may prevent start), check fuel level, check spark plug, and ensure fuel cock is ON.

No power output

Check if the DC protector is tripped (press to ON), check if the overload indicator is lit, or if the AC pilot light is off.

Overload indicator light is on

Turn off connected devices, stop the engine, reduce the total wattage of connected appliances, and restart.

Before use

Check engine oil level (must be filled before first use).
Check fuel level (use unleaded petrol).
Ensure the generator is on a level surface (max tilt 10 degrees).
Ensure the area is well-ventilated.
Check that the air filter is clean.
Ensure no electrical loads are connected before starting.

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Specs in practice

Max Power Rating: The maximum power the generator can produce (2300W for GI2300, 3500W for GI3500).
Continuous Power Rating: The power output the generator can sustain for continuous operation.
Engine Oil Capacity: The amount of oil required for the engine (0.45L).
Economy Control Switch (ECS): When ON, adjusts engine speed to load for better fuel efficiency and less noise.

Images and diagrams

Fig 1: Overview of generator components including fuel tank, muffler, and control panel.
Fig 2: Detailed layout of the control panel (lights, switches, sockets).
Fig 9: Oil gauge and level limits (Top/Low limit).
Fig 10-15: Starting procedure sequence.

Model compatibility

Outdoor use only.
Not for use inside buildings, enclosures, or caravans.
Requires unleaded petrol.
Requires SAE 15W-40 engine oil.

Manual page author

Emily Carter

User documentation editor

Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.