Vaillant VAI 2-035 W - User Manual

Questions and Answers

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Justin MoyerAug 6, 2025
Why is my Vaillant VAI 2-035 W not cooling enough?
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  Brian StevensAug 6, 2025
  There could be several reasons why your Vaillant Air Conditioner isn't cooling or heating sufficiently: * Check if doors or windows are open and close them. * Eliminate any nearby heat sources if possible. * Ensure the thermostat is set correctly for cooling or heating mode. * Remove any obstructions blocking the air inlet or outlet. * Wait a few moments to allow the ambient temperature to reach the set level. * Clean the air filter, which should be done every 15 days. * Use a curtain to block direct sunlight during cooling operation.
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Corey ThomasAug 11, 2025
What to do if my Vaillant VAI 2-035 W Air Conditioner doesn't start?
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  farleyjeffAug 11, 2025
  If your Vaillant Air Conditioner isn't starting, check these potential causes: 1. Make sure the power plug is properly inserted and the unit is switched on ('I' position). 2. Verify that the power supply is connected. 3. Inspect the fuse and replace it if it's blown, using only the correct type for your model. Never use wire or other materials as a substitute, as this could cause a fire.
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charlesdavisAug 16, 2025
Why is my Vaillant VAI 2-035 W Air Conditioner making noise?
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  Bruce SmithAug 16, 2025
  Some noises are normal during the operation of your Vaillant Air Conditioner. A gurgling sound, especially in the first few minutes, is typically the refrigerant flowing. A cracking noise can occur as the casing expands or shrinks due to temperature changes. However, if the noise is loud and seems to come from the airflow, the air filters may need cleaning.
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Robert BrownAug 21, 2025
How to restart Vaillant Air Conditioner immediately?
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  Benjamin SalinasAug 22, 2025
  Your Vaillant Air Conditioner has a built-in protection feature. After stopping the unit or after reinserting the electric plug, you must wait 3 minutes before restarting it. This protects the system.
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rachelparkerAug 27, 2025
Why does my Vaillant VAI 2-035 W smell?
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  riceginaAug 27, 2025
  Your Vaillant Air Conditioner might circulate odors from its surroundings, such as furniture or cigarette smoke. This is normal and doesn't require any action.
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Brittany JordanAug 31, 2025
Why does my Vaillant VAI 2-035 W Air Conditioner blow mist?
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  Lisa WilsonAug 31, 2025
  During COOL or DRY mode, your Vaillant Air Conditioner might release mist due to the rapid cooling of indoor air. This is normal and requires no action.