Vaillant EcoTEC Plus 840 40kW Combi Boiler - Vaillant - 10036018

Name: Vaillant EcoTEC Plus 840 40kW Combi Boiler - Vaillant - 10036018
Brand: Vaillant
SKU: ahccnnzcgc
Price: 2311.15 GBP
Availability: InStock

The NEW Vaillant ecoTEC Plus 840 combi boiler has a refined and enhanced internal layout, with eas...

Best current price£2,311.15from City Plumbing GB

Best offers

Shopping.co.uk recommended and popular offers

Lowest priceMost popular

City Plumbing GB£2,311.15Visit shop

Vaillant Ecotec Plus 840 40Kw Combi Boiler 0010036018

Visit shop

One Offer

1 offer from £2,311.15

View price history by clicking the chart icon.

City Plumbing GBVaillant Ecotec Plus 840 40Kw Combi Boiler 0010036018

Free delivery in 1–3 days

£2,311.15

Visit shop

Product Information

Full details

This guide is for homeowners and installers using the Vaillant ecoTEC Plus 840 combi boiler. The boiler offers efficient heating and hot water, but it's important to understand its features and how to maintain it. It's designed for ease of use with its intuitive interface, but proper setup and care are essential for optimal performance.

All features

Model Part Number	10036018
Brand	Vaillant

Extended Product Information

FAQs

How often should I have my boiler serviced?

Vaillant recommends an annual service by a Gas Safe registered engineer.

What is the correct water pressure for my boiler?

The ideal water pressure is between 1 and 2 bar. Check the pressure gauge on the boiler.

Where can I find the boiler's serial number?

The serial number is located on the data plate, usually found inside the boiler's front panel.

What should I do if my boiler displays an error code?

Consult the user manual for the specific error code and follow the troubleshooting steps. If the issue persists, contact a Gas Safe engineer.

Can I install the boiler myself?

No, the Vaillant ecoTEC Plus 840 must be installed by a Gas Safe registered engineer to ensure safety and compliance with regulations.

How do I adjust the heating temperature?

Use the controls on the front panel or the compatible thermostat to adjust the heating temperature.

How do I convert the boiler to LPG?

Automatic LPG conversion on most outputs (excluding ecoTEC plus 840, 940 and 635), completed in minutes using the new intuitive interface, with no additional parts required. Follow the instructions in the user manual.

Troubleshooting

Boiler not starting.

Check the gas supply, power supply, and water pressure. If the issue persists, consult a Gas Safe engineer.

No hot water.

Check the boiler's settings, gas supply, and water pressure. If the pilot light is out, relight it following the manufacturer's instructions. If the problem continues, contact a qualified engineer.

Low water pressure.

Top up the system pressure using the filling loop until the pressure gauge reads between 1 and 2 bar. If the pressure drops frequently, consult a qualified engineer.

Radiators not heating up.

Check the thermostat settings and bleed the radiators to remove any trapped air. Ensure the boiler is firing.

Pros and Cons

Pros

Easy installation and servicing due to the enhanced internal layout.
Wide compatibility with Vaillant accessories and controls.
Intuitive interface and guided commissioning for ease of use.
Efficient performance with IoniDETECT technology and wide modulation range.
Smart home integration with myVaillant connect.

Cons

Requires professional installation.
Some controls are not compatible (timeSWITCH 150 and timeSWITCH 160).
LPG conversion not available on all models.
Dependent on electricity to operate.

Setup, Compatibility & Care

Setup:

Installation: The Vaillant ecoTEC Plus 840 must be installed by a Gas Safe registered engineer.
Connections: Ensure proper gas, water, and electrical connections are made according to the manufacturer's instructions and local regulations.
Commissioning: Follow the guided commissioning process through the intuitive interface to configure the boiler for your specific needs.

Compatibility:

Controls: Compatible with most Vaillant controls (excluding timeSWITCH 150 and timeSWITCH 160).
Accessories: Works with Vaillant flues, Boiler Protection Kits, and renewable heating systems.
Smart Home: Integrates with the myVaillant connect internet gateway.

Care:

Annual Servicing: Schedule an annual service by a qualified engineer to ensure optimal performance and safety.
Water Pressure: Regularly check and maintain the correct water pressure as indicated on the pressure gauge.
Cleaning: Keep the boiler's exterior clean by wiping it with a damp cloth. Do not use abrasive cleaners.
Flue: Ensure the flue is clear of obstructions to allow for proper venting.