Vaillant recoVAIR VAR 360/4 E

Other manuals for Vaillant recoVAIR VAR 360/4 E

Installation And Maintenance Instructions28 pages

Questions and Answers

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josephgonzalesNov 26, 2025
What to do if there is no or insufficient exhaust air or supply air in my Vaillant recoVAIR VAR 360/4 E?
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  Maria CarterNov 26, 2025
  If you're experiencing no or insufficient exhaust or supply air, several factors could be the cause. First, check if the filters are dirty and clean them if necessary. Ensure that neither the exhaust-air nor the supply-air lines are blocked, and clean them if they are. Verify the fan's functionality and replace it if defective. Make sure the airflow isn't too low, and if it is, install an intake grille with increased airflow. Also, check that the supply-air and exhaust-air valves aren't closed too far; open them and adjust the system accordingly. If the supply-air temperature is too low, wait until it increases; normal operation should resume when the supply air temperature is above 10°C. If the outside temperature is too low, check whether S.812 is displayed in the Live Monitor and wait u...
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Lori SteeleAug 23, 2025
Why does my Vaillant recoVAIR VAR 360/4 E Boiler have an increased noise level?
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  melissareyesAug 23, 2025
  An increased noise level in your Vaillant Boiler could stem from a few issues. One potential cause is missing or incorrect silencers in the supply-air or exhaust-air pipes; in this case, install silencers according to the system planning. Another possibility is that system components like the heat exchanger or fan are defective, so replace any defective components. Alternatively, dirty system components such as the heat exchanger or fan could be the cause, in which case you should clean them.
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Jessica HowellAug 25, 2025
Why is the supply air from my Vaillant Boiler too cold?
- E
  Eric LopezAug 26, 2025
  If the supply air is too cold, it could be due to several reasons. First, the supply-air and exhaust-air flows might not be balanced, so you should adjust the product. Also, check the flap position, and replace the bypass motor if it is defective. Another potential cause is dirty system components, such as the heat exchanger or fan, so clean them. Finally, frost protection might be active; in this case, check whether S.815 is displayed in the Live Monitor and wait until the outside temperature increases above ?3°C. The product should automatically switch on no later than 60 minutes after the temperature increases.
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Lori SpencerAug 27, 2025
Why is water dripping out of my Vaillant recoVAIR VAR 360/4 E Boiler?
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  josephcookeAug 27, 2025
  If water is dripping out of your Vaillant Boiler, it could be because the exhaust-air lines or supply-air lines aren't insulated to ensure that they are vapour-diffusion-tight. To fix this, insulate both the exhaust-air and supply-air lines, making sure the insulation is vapour-diffusion-tight.
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Lisa LoveAug 29, 2025
How to fix bypass summer mode not working on Vaillant recoVAIR VAR 360/4 E Boiler?
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  adam46Aug 29, 2025
  If the bypass summer mode isn't working, there are several things you can check. First, make sure the bypass function is active and that you've set the planned operating days for summer mode. Inspect the plug connection to the bypass motor and check the temperature sensor. If the bypass motor is defective, replace it. Also, verify the flap position and the positioning of the temperature sensor.
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Mark BurtonSep 18, 2025
What to do if there is a failure of the supply-air differential pressure sensor in my Vaillant recoVAIR VAR 360/4 E?
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  Richard GarciaSep 18, 2025
  If there is a failure of the supply-air differential pressure sensor, it could be because the supply-air differential pressure sensor does not work or is defective. Check that the supply-air differential pressure sensor works correctly.
C
casey35Sep 15, 2025
What to do if there is a failure of the outside air temperature sensor on my Vaillant recoVAIR VAR 360/4 E?
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  Lisa Moore MDSep 15, 2025
  If there is a failure of the outside air temperature sensor, it could be because the outside temperature sensor does not work or is defective. Check that the outside temperature sensor works correctly.
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stokesmelindaSep 17, 2025
What to do if there is a failure of the exhaust air humidity sensor on my Vaillant recoVAIR VAR 360/4 E?
- A
  amillerSep 17, 2025
  If there is a failure of the exhaust air humidity sensor, it could be because the exhaust-air humidity sensor does not work or is defective. Check that the exhaust-air humidity sensor works correctly.
H
Heather MoralesSep 7, 2025
What to do if there is a failure of the frost protection element in my Vaillant recoVAIR VAR 360/4 E?
- C
  Colleen HubbardSep 7, 2025
  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.
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Leslie CollinsSep 4, 2025
How to stop noise transmission between the rooms from my Vaillant recoVAIR VAR 360/4 E?
- K
  Kimberly ReynoldsSep 4, 2025
  If you're experiencing noise transmission between rooms, it could be due to the absence of a T supersonic damper. To address this, install T supersonic dampers and then adjust the product.

Summary

Safety

Action-Related Warnings

Classification of action-related warnings based on severity using warning signs and signal words.

Intended Use of the Product

Specifies the product's intended purpose and limitations, including user age and capabilities.

General Safety Information

Provides general safety guidelines, including improper operation and installation by competent persons.

Risk of Injury from Maintenance and Repairs

Details risks from improper maintenance and repair, emphasizing professional work.

Product Environment Safety

Warns against modifying the product or its environment, including safety devices.

Product Description

Role and Function of the Product

Explains the product's purpose: aerating, ventilating, and heat recovery in living spaces.

Operator Control Elements Overview

Digital Information and Analysis System (DIA)

Explains the DIA system for monitoring operating status and assisting with faults.

Operation

Operating Concept and Navigation

Explains how to navigate the product's functions using the control elements.

Basic Display Information

Understanding Operating Levels

Operator Level Functions Overview

Introduces the operator level and lists key menu points for end-user functions.

Switching the Product On and Off

Instructions for powering the product on and off using the mains plug or circuit breaker.

Setting the Ventilation Level

Setting the Desired Temperature

Troubleshooting

Detecting and Rectifying Faults

General safety precautions for troubleshooting and contacting a competent person.

Maintenance and Care

Safety Precautions for Maintenance

Crucial safety warning regarding electrical hazards during maintenance and repair.

Carrying Out Maintenance Work

Filter Maintenance Procedures

Condensate Pipework Connection

Guarantee and Customer Service

Product Guarantee Conditions

Customer Service Contact Information

Appendix

Operator Level Overview

Ventilation Levels Overview

Status Messages Overview

Maintenance Messages Overview

Limp Home Mode Messages Overview

Troubleshooting and Fault Elimination

Provides a structured guide to diagnosing and resolving product issues.