Fagor Eco Plus Fa 15-20 Manual 〈QUICK — 2026〉

| Problem | Common Cause | Potential Solution (Always consult a professional) | | :--- | :--- | :--- | | | A faulty diaphragm or membrane within the boiler's water flow sensor, which fails to signal the gas valve to open. | A Gas Safe registered engineer (or local equivalent) should inspect and replace the diaphragm. | | Pilot light goes out a short time after using hot water | A malfunctioning limit thermostat, which may be incorrectly shutting down the boiler as a safety measure. | Have a professional test and replace the limit thermostat if necessary. | | Boiler loses water pressure frequently | A failed expansion vessel. The expansion vessel absorbs pressure changes, and when it fails, the pressure relief valve may release water, causing a drop in system pressure. | The expansion vessel may need to be re-pressurized or replaced by a qualified heating engineer. |

Set the CH and DHW thermostats to your desired temperatures. The electronic ignition will automatically light the burner when there is a demand for heat. Adjusting Seasonal Modes

The boiler must be mounted to a flat, load-bearing wall capable of supporting the unit's full weight when filled with water. Fagor Eco Plus Fa 15-20 Manual

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Check the outside flue pipe to ensure birds haven't built a nest inside it and that leaves are cleared away. 5. Routine Maintenance: How to Re-pressurize the Boiler | Problem | Common Cause | Potential Solution

The unit operates as a fully modulating system, meaning it adjusts its gas output to meet demand efficiently.

Electronic automatic ignition with continuous ionization flame monitoring. | Have a professional test and replace the

This guide provides a comprehensive overview of the Fagor Eco Plus FA 15-20, covering installation basics, operating instructions, and common error codes. Technical Specifications Overview

Includes a copper heat exchanger and stainless steel burner flamestrips.

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The is a microprocessor-controlled, wall-hung gas combination boiler designed to provide both central heating and domestic hot water (DHW) . It is frequently used in specialized settings such as caravan holiday homes and park homes due to its compact design and high efficiency. Key Technical Specifications