To Next PageTo Next PageHow to fix Flow NTC open circuit in Vaillant ecoTEC pro 24?
A Flow–NTC open circuit can be caused by a broken NTC, a broken NTC cable, a defective connection at the NTC, or a defective connection at the electronics. Check and repair the NTC and connections.
How to fix Return–NTC open circuit in Vaillant ecoTEC pro 24?
A Return–NTC open circuit can be caused by a broken NTC, a broken NTC cable, a defective connection at the NTC, or a defective connection at the electronics. Check and repair the NTC and connections.
How to fix Flow NTC short circuit in Vaillant ecoTEC pro 24?
A Flow NTC short circuit can be caused by a defective NTC, a short circuit in the cable harness, or a cable/casing shortcut. Replace the NTC and inspect the cable harness.
How to fix Return NTC short circuit in Vaillant Boiler?
A Return NTC short circuit can be caused by a defective NTC, a short circuit in the cable harness, or a cable/casing shortcut. Replace the NTC and inspect the cable harness.
How to fix Tank NTC short circuit in Vaillant ecoTEC pro 24 Boiler?
A Tank NTC short circuit can be caused by a defective NTC, a short circuit in the cable harness, or a cable/casing shortcut. Replace the NTC and inspect the cable harness.
General| Model | ecoTEC pro 24 |
|---|---|
| Category | Boiler |
| Output | 24 kW |
| Fuel Type | Natural Gas |
| Boiler Type | Combi |
| Mounting | Wall-mounted |
| ERP Rating | A |
| DHW Output | 24 kW |
| Max. working pressure | 3 bar |
| Fuel | Natural Gas |
| Warranty | 2 Years |
| Efficiency | 89.3% |
| Dimensions | 720mm x 440mm x 338mm |
Information on manual structure, liability, and related documents.
Overview of ecoTEC boiler types, their function, and models.
Boiler design for sealed systems, mounting, and flue compatibility.
Compliance with EU directives for gas appliances and EMC.
List of gas council approval numbers for different ecoTEC models.
Detailed technical specifications including output, dimensions, efficiency, and performance data.
Diagrams showing the physical dimensions and connection points of the boiler.
Diagrams illustrating the function elements of combination and system boilers.
Information on the location of the boiler's type plate.
Requirements for flue systems and installation instructions.
Lists relevant British Standards, regulations, and publications for installation.
Details the components included in the boiler's packaging.
Guidelines for selecting a suitable location for boiler installation, considering clearances and environment.
Requirements for gas supply installation, pipe sizing, and leak checks.
Information on Vaillant flue pipe systems, including standard and optional sizes.
Specifies requirements for flue terminal positioning and clearances according to standards.
Discusses air supply requirements and ventilation for cupboard installations.
Details electrical connection requirements, safety, and wiring standards.
Outlines requirements for the heating system, including circulation, filling, and pressure components.
Safety guidelines and recommendations for lifting and moving the boiler.
Specifies necessary clearances around the boiler for installation and servicing.
Guidance on choosing the optimal location for the boiler based on fluing and access.
Instructions for safely removing the boiler from its packaging.
Steps for using the wall template to mark fixing and connection points.
Instructions for marking and preparing the flue exit hole.
Guidance on securely installing the boiler's hanging bracket.
Directs users to separate instructions for flue system installation.
Steps for lifting and hanging the boiler onto the bracket.
Procedure for removing the boiler's front casing for access.
Important advice on cleansing the heating system before connecting the appliance.
Detailed instructions for making a safe and correct gas connection to the boiler.
Instructions for connecting the cold water inlet and hot water outlet pipes.
Guidance on connecting the condensate drain pipe and its requirements.
Instructions for connecting the heating flow and return pipes and the pressure relief valve.
Refers to separate instructions for flue system connection.
Comprehensive instructions for safe electrical connection, including wiring diagrams.
Lists compatible Vaillant controls and their connection methods.
Explains how to connect external controls like time switches and thermostats.
Provides a wiring diagram for connecting time switches and thermostats.
Refers to separate instructions for optional timer accessories.
Details how to connect the VR 65 control center for system integration.
Notes the boiler's compatibility with TRVs and recommends control interlocks.
Explains the boiler's integral frost protection feature and how to protect the system.
Describes the built-in circulating pump and its automatic overrun function.
Explains the control that prevents energy-wasting short cycling.
Details the APS feature that prevents pump seizure during periods of inactivity.
Specifies checks for electrical safety, continuity, and polarity.
Outlines inspection, leak testing, and purging of the gas installation.
Instructions for filling and purging the domestic hot water circuit.
Step-by-step guide for filling and bleeding the heating system.
How to check and adjust the heating system's cold fill pressure using the manometer.
Details the use of the filling loop on ecoTEC plus combination boilers.
Instructions for filling systems without a dedicated filling loop.
Comprehensive procedure for filling the heating system, including bleeding radiators.
Procedure for flushing the heating system to remove installation debris.
Instructions for filling the condensate trap to prevent fume escape.
How to adjust the pump speed for optimal heating system performance.
Guidance on adjusting the boiler's internal by-pass valve.
Procedures for checking gas inlet pressure and gas rate.
Steps for correctly refitting the boiler's front casing.
How to adjust the boiler's central heating output range.
Information on converting the appliance between natural gas and LPG.
Detailed procedures for performing essential functional checks on the appliance.
Guidance on instructing the user on operation, safety, and maintenance.
Information regarding the appliance's warranty terms and conditions.
Recommendations for regular safety inspections and maintenance checks.
Detailed steps for removing, cleaning, and refitting the burner module.
Procedure for cleaning and refilling the condensate siphon.
Instructions for checking the expansion vessel's charge pressure.
Steps to follow after maintenance to recommission the boiler.
Checks to perform after any maintenance task to ensure proper operation.
A systematic approach to diagnosing and resolving boiler faults.
Lists and explains various test programs available for diagnostics.
Procedure for restoring appliance settings to factory defaults.
Essential safety precautions before replacing any boiler components.
Step-by-step guide for replacing the boiler's burner.
Instructions for replacing the fan or gas valve assembly.
Procedure for replacing the boiler's expansion vessel.
Steps for safely removing and replacing the primary heat exchanger.
Instructions for replacing the electronic control unit and display.
Guidance on checking and adjusting the CO2 content for optimal combustion.
Guidelines for environmentally responsible disposal of the boiler and packaging.
Information on obtaining regular servicing and maintenance agreements.
Statement confirming compliance with relevant European directives.
Reference to the commissioning checklist for installers.
