AS 2500-1E - Boiler Baxi - Free user manual and instructions
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| Product Type | Wall-hung gas boiler |
| Brand | Baxi |
| Model | AS 2500-1E |
| Energy Source | Natural gas (methane) |
| Heating Output (max) | 25 kW |
| Hot Water Output (max) | 28 kW |
| Mounting | Wall-mounted |
| Dimensions (H x W x D) | 800 x 400 x 300 mm |
| Weight | 35 kg |
| Water Capacity | 12 L |
| Pump Type | Variable speed circulator |
| Expansion Vessel Capacity | 8 L |
| Flue Type | Balanced flue (room-sealed) |
| Efficiency (ERP) | 94% (condensing) |
| Safety Features | Overheat protection, frost thermostat, pressure relief valve |
| Controls | Digital display, weather compensation compatible |
| Annual Maintenance | Required by certified engineer |
| Spare Parts | Available for 10 years after production |
| Repairability Index | 8.0 / 10 |
Frequently Asked Questions - AS 2500-1E Baxi
How do I reset the boiler after a lockout?
Press and hold the reset button for 3 seconds. Wait for the boiler to restart. If the issue persists, consult a certified technician.
What should the water pressure be?
The ideal water pressure is between 1.0 and 1.5 bar. Check the pressure gauge and top up via the filling loop if below 1.0 bar.
How do I bleed a radiator?
Turn off the heating, wait for radiators to cool, use a radiator key to open the bleed valve until water comes out, then close it. Keep the boiler pressure at 1.0-1.5 bar.
Why is my boiler making a banging noise?
This could be due to air in the system or limescale build-up. Bleed the radiators first; if the noise continues, call a professional to descale the heat exchanger.
How often should I service my Baxi AS 2500-1E?
Annual servicing by a Gas Safe registered engineer is recommended to maintain efficiency and safety. Include a flue gas analysis and heat exchanger check.
What does the flashing red light mean?
A flashing red light indicates a fault code. Refer to the manual's error code table. Common causes: low pressure, ignition failure, or NTC sensor issue.
Can I use the boiler without hot water?
Yes, you can use the heating mode only by setting the hot water thermostat to minimum or turning off the DHW function if your model has that function.
How do I adjust the heating temperature?
Use the control panel to set the flow temperature (typically 60-80°C). For underfloor heating, keep it below 55°C to avoid damage.
What is the lifespan of the Baxi AS 2500-1E?
With regular maintenance, a typical lifespan is 12-15 years. After 15 years, consider replacement for better efficiency.
Where can I find a replacement fan?
Genuine Baxi spare parts are available from authorized dealers or online stores. Search for Baxi AS 2500-1E fan or quote the serial number.
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USER MANUAL AS 2500-1E Baxi
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Exterior view of a silver cylindrical device with black circular button and two small buttons (no text or symbols visible)
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Technical mechanical assembly diagram showing shaft, housing, and mounting components (no text or labels)Mantenimiento
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Technical mechanical assembly diagram showing shaft, housing, and mounting components (no text or labels)
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Product information
Brand : Baxi
Model : AS 2500-1E
Category : Boiler