What to do if my Vaillant eco TEC plus 418's heating system is not full of water?
If the heating system of your Vaillant Boiler is not full of water or the design pressure is not attained, ensure the heating system is full of water and the system design pressure is attained. If it's not, refill and vent the system. Also, ensure any flow and return isolating valves are fully open.
What to do if domestic hot water temperature is set to minimum on my Vaillant eco TEC plus 418 Boiler?
If the domestic hot water temperature is set to minimum on your Vaillant Boiler, set the domestic hot water temperature to maximum. Note: This applies only if additional Vaillant accessories are fitted.
What to do if the external electricity supply to my Vaillant eco TEC plus 418 Boiler is off?
If the external electricity supply to your Vaillant Boiler is off, verify that the external electricity supply is on and that a supply of 230 V~ is present between the boiler terminals ‘L’ and ‘N’.
What to do if the gas supply to my Vaillant Boiler is off?
If the gas supply to your Vaillant Boiler is off, check that the gas supply to the boiler is on, that it has been correctly purged, and that an inlet pressure is present.
What to do if external controls of my Vaillant eco TEC plus 418 are off?
If the external controls of your Vaillant Boiler are off or not functioning, check that all external controls are on and calling for heat. If no external controls are fitted, boiler terminals 3 and 4 must be linked.
General| Model | ecoTEC plus 418 |
|---|---|
| Category | Boiler |
| Output | 18 kW |
| Efficiency | 94% |
| Fuel Type | Natural Gas |
| Boiler Type | Condensing |
| Mounting | Wall-mounted |
| Max. Working Pressure | 3 bar |
Details on new European standard for advice and symbols in instructions.
Emphasizes observing safety instructions for appliance operation and lists symbols.
Describes the ecoTEC plus boilers and their intended use for heating systems.
Provides general information about the boiler's design, flue system, and diagnostic system.
Stresses that gas appliance installation must be by a competent person per regulations.
Provides emergency procedure for smelling gas or suspecting a gas leak.
Explains boiler behavior during electrical supply failure and reset procedures.
Recommends annual checks and servicing by a competent person.
Outlines the two-year parts and labour warranty and its conditions.
Lists relevant regulations and directives the boiler meets.
Supports the Benchmark initiative and the importance of the commissioning checklist.
Presents detailed technical specifications for various ecoTEC plus models in a table.
Provides diagrams with dimensions of the boiler and its components.
Lists relevant regulations, British Standards, and publications for installation.
Provides guidance on selecting a suitable installation site considering flue termination and ventilation.
Describes various available flue systems and their installation requirements.
Refers to BS 5440: Part 2 for air supply recommendations.
States that cupboard ventilation is not necessary due to the appliance's high efficiency.
Details the requirements for fitting a plastic drain pipe for condensate discharge.
Recommends programmers and room thermostats, and thermostatic radiator valves.
Emphasizes thorough system flushing and the use of appropriate cleansers and inhibitors.
Covers requirements for sealed water systems including safety valve and expansion vessel.
Discusses suitable locations for boiler installation, considering zones and clearances.
Refers to Fig. 4.1 for minimum operational and servicing clearances.
Provides guidance for installing the boiler in timber frame buildings.
Refers to flue system installation instructions and warns against using non-Vaillant flue pipes.
Explains how to remove the front casing for access, advising care.
Describes how to make water connections using compression couplers and flushing systems.
Explains the condensate drain connection and requirements for discharge.
Details connecting the power supply flex to the appliance and electronics box.
Explains connecting the flex to the terminal block and performing electrical tests.
Lists Vaillant controls used with the VR 65 accessory and their connections.
Explains connections for external electrical controls to boiler terminals.
Outlines general steps before commissioning, including flushing and venting.
Details checking gas supply, purging, and testing pressure for natural gas and LPG.
Describes the automated procedure for initial boiler lighting.
Explains fan issues leading to appliance shutdown and fault messages.
Guides on checking gas inlet pressure and maximum gas rate after burner ignition.
Lists initial steps for natural gas to LPG conversion, including isolating power and gas.
Details functional checks for the heating operation, including status indicators.
Describes functional checks for domestic hot water when accessories are fitted.
Guides on instructing the user on operation, controls, and the importance of servicing.
Details the Vaillant warranty terms and conditions for the appliance.
Recommends regular checks and servicing by a competent person for safe operation.
Lists essential safety precautions to be taken before starting any maintenance work.
Describes how to perform a functional check of the boiler's operation.
Details the inspection and cleaning of the spark electrode, including checking the spark gap.
Explains how to remove the burner module, including caution about seals.
Explains how to flush the condensate drain and what to do if it's blocked.
Advises checking the condition of the inner casing panel seal and replacing it if needed.
Provides instructions for checking the expansion vessel pressure every three years.
Details the steps for recommissioning the boiler after maintenance.
Lists checks to perform after any maintenance task, including system checks.
Explains how to check and adjust CO2 content using a combustion analyser.
Provides a step-by-step procedure for logical fault finding before using guides.
Explains how to view and interpret status codes displayed by the appliance.
Describes how to access and use diagnostic codes, including two levels of diagnostics.
Explains how to access and scroll through the fault memory for the ten most recent faults.
Details how to reset individual parameters or all parameters to factory settings.
Lists safety instructions to be followed before replacing any component.
Refers to sections for access and removal of the burner.
Guides on replacing the gas valve, including removal of related parts.
Explains the procedure for removing and refitting the condense trap and drain.
Covers replacing electronic components and the display, including parameter adjustments.
Lists regulations and standards that must be followed during installation.
Lists available accessories for different flue termination types with their article numbers.
Outlines preparation steps for installing the horizontal air/flue duct.
Details flue exit installation to the rear of the boiler.
Describes flue exit installation to the side of the boiler, including slope.
Specifies minimum flue terminal clearances and reduced clearances for VTK.
Details the assembly steps for the variable termination kit before installing the flue pipe.
Outlines preparation steps for installing the vertical air/flue duct.
Guides on cutting tubes to size, calculating lengths, and fitting extensions.
Lists regulations and standards that must be followed during installation.
Lists available accessories for different flue termination types with their article numbers.
Notes on air/flue duct slope and drilling for wall penetration.
Mentions installing extensions with a slope to prevent condensate.
Details positioning the flue exit hole for side installations and slope requirements.
Guides on fitting wall mounting, appliance, connection piece, elbow, and extensions.
Outlines preparation steps for installing the vertical air/flue duct.
Guides on cutting tubes to size, calculating lengths, and fitting extensions.
Details on new European standard for advice and symbols in instructions.
Emphasizes observing safety instructions for appliance operation and lists symbols.
Explains the CE mark and the directives it complies with.
Covers installation, adjustment, service, maintenance, and repair by competent persons.
Provides emergency procedures for gas leaks and malfunctions.
Lists general safety instructions and regulations to observe.
Outlines the two-year parts and labour warranty and its conditions.
Defines the intended use of the appliance and warns against misuse.
Introduces the appliance controls and display system.
Lists initial checks required before turning on the boiler.
Describes how to adjust the domestic hot water temperature using controls.
States the boiler must be used only when the heating system contains water.
Guides on setting room or outside temperature controllers.
Describes how to view and interpret status displays for appliance operation.
Addresses burner ignition failures, fault codes, and reset procedures.
Explains fan issues leading to appliance shutdown and fault messages.
Emphasizes regular inspections and maintenance by a competent person or Vaillant.
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