AS 750-IN E - Boiler Baxi - Free user manual and instructions
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| Product Type | Wall-mounted condensing gas boiler |
| Model | AS 750-IN E |
| Brand | Baxi |
| Energy Source | Natural gas (NG) or LPG (convertible) |
| Heating Output (kW) | 24-30 kW (adjustable) |
| Domestic Hot Water Output (kW) | 30-36 kW |
| Efficiency Class | A (condensing) |
| NOx Class | 5 (low emissions) |
| Dimensions (H x W x D) | 700 x 400 x 300 mm |
| Weight | 35 kg |
| Water Connection | 3/4" BSP (flow and return), 1/2" BSP (gas) |
| Max Operating Pressure | 3 bar |
| Electrical Supply | 230V ~ 50Hz |
| Electrical Power Consumption | 150 W (max) |
| Control System | Electronic with LCD display and room thermostat compatibility |
| Key Features | Condensing technology, modulating burner, frost protection, summer/winter mode |
| Safety Features | Flame failure device, overheat protection, gas pressure switch, safety valve |
| Maintenance | Annual service recommended; clean heat exchanger and check electrodes |
| Spare Parts Availability | Common spare parts available through Baxi distributors |
| Warranty | 2 years (subject to terms and conditions) |
| Installation | Must be installed by a qualified Gas Safe engineer |
Frequently Asked Questions - AS 750-IN E Baxi
What should I do if my Baxi AS 750-IN E boiler won't start?
First, check that the gas supply is on and the electrical power is connected. Ensure the thermostat is set above room temperature. If the boiler still doesn't start, try resetting it by pressing the reset button for 3 seconds. If the problem persists, contact a qualified engineer.
How do I adjust the water pressure on my boiler?
The water pressure should be between 1.0 and 1.5 bar when cold. To adjust, locate the filling loop valve (usually under the boiler) and slowly open it until the pressure gauge reaches the desired level. Close the valve after adjustment. If pressure drops frequently, check for leaks.
What does the error code E10 mean on the Baxi AS 750-IN E?
Error code E10 indicates a flame failure. This means the burner failed to ignite or the flame was lost. Check that the gas supply is on and the ignition electrodes are clean. If the error persists, call a professional.
Can I use the Baxi AS 750-IN E with underfloor heating?
Yes, the boiler is compatible with underfloor heating systems. However, you may need to install a thermostatic mixing valve to control the flow temperature and prevent overheating. Consult a heating engineer for proper setup.
How often should I service my Baxi boiler?
It is recommended to service your Baxi boiler annually by a Gas Safe registered engineer to ensure safe and efficient operation, and to maintain the warranty.
What is the lifespan of the Baxi AS 750-IN E?
With proper maintenance, this boiler can last between 10 to 15 years. Regular servicing and using quality parts can extend its life.
Why is my boiler making a banging noise?
A banging noise often indicates kettling caused by limescale buildup in the heat exchanger. This can be resolved by flushing the system or installing a water softener. In some cases, air in the system may cause gurgling; bleed the radiators to fix.
How do I bleed a radiator connected to my Baxi boiler?
Turn off the heating and allow it to cool. Using a radiator key, slowly open the bleed valve on top of the radiator until air hisses out. Once water starts to drip, close the valve. Check the boiler pressure afterward and adjust if needed.
Is the Baxi AS 750-IN E suitable for a large home?
This boiler has a heating output up to 30 kW, which is suitable for most 3-4 bedroom homes with standard radiators. For larger properties, a higher output model or a system boiler with a separate water tank may be required.
What spare parts are commonly needed for this boiler?
Common spare parts include ignition electrodes, thermistors, fan assemblies, gas valves, and heat exchangers. These can be purchased from Baxi dealers or online. Always use genuine parts for safety.
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USER MANUAL AS 750-IN E Baxi
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Product information
Brand : Baxi
Model : AS 750-IN E
Category : Boiler