Why are there noises after replacing the fan in my Vaillant recoVAIR VAR 260/4 Boiler?
If you're hearing noises after replacing the fan, it's possible that the fan was installed incorrectly. Check the fan's installation location to ensure it's properly placed.
What to do if there is a failure of the frost protection element in my Vaillant recoVAIR VAR 260/4?
If there is a failure of the frost protection element, it could be that the frost protection element is defective. Replace the frost protection element.
What to do if there is no connection to the step switch on my Vaillant Boiler?
If there is no connection to the step switch, it may be that the 4-step switch does not work or is defective. Activate the 4-step switch in the installer level and check that the 4-step switch works correctly.
What to do if there is a failure or fault with the air quality sensor on my Vaillant recoVAIR VAR 260/4?
If there is a failure or fault with the air quality sensor, it is possible that the air quality sensor does not work or is defective. Check the air quality sensors.
Classification of warnings by severity using symbols and signal words.
Specifies the product's intended purpose and limitations for aerating and ventilating living areas.
Provides overarching safety guidelines, including dangers from improper operation and qualified personnel.
Emphasizes the need to follow operating instructions for all system components.
Advice on keeping the manual and other documents safe for future reference.
Details product article numbers and their applicability in different regions.
Explains the product's purpose in aerating, ventilating, and heat recovery for living spaces.
Illustrates and explains symbols used on the product for air intake and exhaust.
Details the physical components and layout, including connections and control panel.
Explains the DIA system for monitoring operating status and aiding in fault diagnosis.
Describes the details provided on the product's identification plate.
Explains the CE label and its relation to applicable directives and conformity.
Explains how to navigate the product's interface using selection levels and buttons.
Describes the default screen showing current product status and access to main settings.
Outlines the two user access levels: Operator level and Installer level.
Details the functions and information accessible to the end-user via the operator level.
Instructions for powering the product on and off using the mains plug or circuit breaker.
Guides on how to adjust ventilation levels using different control methods.
Instructions on how to adjust the desired room temperature setting.
Steps for identifying and resolving common product issues and fault messages.
Information on obtaining and using original Vaillant spare parts.
Guidelines for performing routine maintenance, cleaning, and filter replacement.
Instructions for safely taking the product out of service by a competent person.
Guidance on proper disposal of packaging, the product, accessories, and used filters.
Details the factory warranty terms and conditions for the product.
Provides contact information for Vaillant customer service and technical support.
Details on how to view energy yield data for the product.
Information on checking the current status, components, and parameters via Live Monitor.
How to find entered contact details, such as telephone numbers.
Instructions for reading the product's serial and article numbers.
How to check remaining days until filter replacement or if it is overdue.
How to check remaining days until maintenance or if it is overdue.
Instructions for changing the language settings of the product.
How to adjust the contrast of the product's display.
Options for configuring the heat recovery function (OFF, ON, Auto).
Procedure for resetting the filter replacement days counter.
Description of automatic ventilation based on humidity, suitable for year-round use.
The standard operating mode for normal room loading and occupancy.
Recommended for higher room air loads, like increased occupancy or cooking.
Intended for extended periods of absence to reduce energy consumption.
Temporary boost for increased load, active for 30 minutes.
Status code S.800: Frost protection element activated below -3 °C.
Codes S.802/S.803: Indicates if heat recovery bypass is closed or open.
Status code S.804: Heat recovery bypass is half-open for passive cooling.
Status code S.805: Ventilation adjusts based on room moisture, CO2 sensors.
Status code S.806: Product operates at the selected ventilation level.
Status code S.807: Indicates that intensive ventilation has been activated.
Codes S.808/S.809: Indicates calibration or sensor/actuator test is active.
Codes S.810/S.811: Indicates 'Away from home' or moisture protection modes.
Status code S.812: Standard frost protection reduces supply air to prevent freezing.
Codes S.813/S.815: Indicates bypass cut-off or system off for frost protection.
Status code S.814: A phase of nominal ventilation follows intensive ventilation.
Overview of maintenance messages (M.800, M.801, M.802) and required work.
Details on limp home mode messages, such as Lhm.806 for supply air temperature.
Lists common symptoms like 'Product not operating' or 'Reduced air flow' with causes.
Provides solutions for specific fault messages like frost protection or low supply air temperature.
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General