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.
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