To Next PageTo Next PageWhat does it mean if my Baxi Boiler is flashing 5 green lights for a parameter fault?
If your Baxi Boiler displays 5 green flashes, it indicates a parameter fault, caused by a parameter error or faulty PU, or a configuration error or PCB fault. To solve this, replace the PU and recommission, or replace the control/fan assembly.
General| Mounting | Wall-mounted |
|---|---|
| Output Rating | 19 kW |
| ErP Efficiency | A |
| Fuel | Gas |
| Flow Rate | 9.8 l/min |
| Central Heating Max Power | 19kW |
| Hot Water Max Power | 19kW |
| Boiler Type | Combi |
| Fuel Type | Natural Gas |
General information and safety warnings for boiler installation.
Details of other manuals and documentation to be read.
Explanation of symbols used to convey important information.
List of abbreviations used throughout the manual.
Defines manufacturer and installer responsibilities and limitations.
Details the manufacturer's responsibilities and warranty conditions.
Outlines the installer's duties and responsibilities during installation.
Information on product certifications and compliance with directives.
Lists the certifications and conformity procedures for the boiler.
Specifies compliance with relevant European directives for efficiency.
References applicable British and Irish standards for installation.
Crucial safety advice for handling gas and operating the appliance.
General recommendations for safe installation and maintenance practices.
Detailed safety guidelines, including specific handling procedures.
Safe practices for lifting and moving the boiler during installation.
Key technical data, performance figures, and dimensions of the boiler.
Detailed technical parameters including efficiency and consumption figures.
Diagrams and specifications for boiler dimensions and connection points.
Schematic diagram illustrating the boiler's electrical connections.
Overview of the Baxi EcoBlue Heat range and its features.
Explanation of the boiler's sequence of operation and safety features.
Identification and description of the key internal components of the boiler.
Details the functions and symbols of the boiler's control panel.
Specifics of the control panel buttons, rotary knob, and indicators.
List of items included in the standard boiler package.
Information on available optional accessories for the boiler.
List of optional accessories such as flue kits and trace heating.
Regulations and codes of practice that must be followed for installation.
Essential requirements for installing the boiler, including gas and electrical supply.
Specifications and standards for connecting the gas supply to the boiler.
Requirements for the mains electrical supply and connection methods.
Considerations for installing in areas with hard water.
Requirements for fitting a bypass on systems with TRVs and zone valves.
Mandatory system controls like thermostats and TRVs for compliance.
Guidelines for flushing and treating the heating system to prevent corrosion.
General guidelines for water circulating systems and pipework.
Specifics for low head installations and open vented systems.
Detailed requirements for sealed heating systems, including expansion vessels.
Guidelines for selecting the optimal and safe location for boiler installation.
Factors to consider when siting the boiler, including flue terminal position.
Information on the location and details of the boiler's data plate.
Specific zoning regulations for installing boilers in bathrooms.
Ventilation requirements for appliances installed in cupboards or compartments.
Critical instructions for correctly installing the condensate discharge pipework.
Required clearances around the boiler for maintenance and airflow.
General requirements for siting balanced flue terminals.
Details on using telescopic flue kits for horizontal terminations.
Information on fitting flexible flue trims for aesthetic purposes.
Details on when and how to install terminal guards for safety.
Instructions for fitting a flue deflector to redirect plume.
Reference to flue accessories detailed in a separate guide.
Steps for unpacking the boiler and preparing for wall mounting.
Procedure for safely unpacking the boiler from its packaging.
Steps for positioning the fixing template and drilling the wall.
Instructions for connecting the flow and return water pipes.
Procedure for filling the condensate trap with water before commissioning.
How to connect the condensate drain pipe to the boiler.
Instructions for connecting the gas supply to the boiler.
Requirements for connecting the air supply and flue gas system.
Detailed steps for installing the telescopic flue kit for top exit.
Instructions for making electrical connections to the boiler and controls.
Details on connecting the appliance's 3-core cable to the power supply.
Wiring diagrams and requirements for system controls and thermostats.
Procedure for filling the heating system with water.
Final checks and steps to complete the boiler installation.
Final checks required before turning on power and gas.
General references and procedures for commissioning the boiler.
Pre-commissioning checks including electrical and system integrity.
Performing electrical checks using a meter before commissioning.
Verifying installation integrity, flue, combustion circuit, and joints.
Step-by-step guide for the boiler commissioning process.
Procedures for setting the boiler's gas valve and checking combustion.
Using the 'Chimney Sweep' mode to check combustion parameters.
Flowchart for verifying flue integrity and combustion performance.
Steps for configuring the heating system and checking gas pressure.
Procedure to check gas pressure at maximum load conditions.
Final steps for the installer, including user handover and documentation.
General guidance on operating the boiler and its controls.
Steps to follow when starting the boiler for the first time.
Instructions for safely shutting down the boiler.
How to use the boiler's control panel for heating and hot water.
Methods to protect the system from freezing in cold conditions.
Information on the boiler's factory-set operating parameters.
General precautions and recommendations for boiler servicing.
Routine inspection and maintenance tasks for the boiler.
Detailed procedures for maintaining specific boiler components.
Procedure for removing, checking, and replacing the spark ignition electrode.
Steps for servicing or replacing the automatic air vent.
Instructions for cleaning and refitting the condensate trap.
Guidance on removing air and flue ducts for component access.
Procedure for replacing the pressure switch on specific models.
Instructions for replacing the 'Socket & See' electrical test point.
Procedure for replacing the flow temperature sensor.
Procedure for replacing the overheat sensor.
Procedure for replacing the return temperature sensor.
Steps for removing and replacing the parameter unit.
Procedure for replacing the gas valve and checking gas tightness.
Procedure for replacing the control and fan assembly.
Procedure for removing and refitting the user interaction controller.
Detailed procedure for replacing the boiler fan assembly.
Procedure for replacing the Printed Circuit Board (PCB).
Procedure for checking and adjusting CO2 levels for optimal combustion.
Explanation of boiler status signals and error codes.
Description of lockout conditions and their possible causes and remedies.
Steps for safely decommissioning and removing the boiler.
General advice on using genuine spare parts for replacement.
List of available spare parts with manufacturer part numbers.
