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→ Claims and complaints. | SBB
The default temperature is at 22 degrees celsius which is an ambient room temperature. From my experience, the air conditioning is not always working equally, the area near the doors to change coaches is often more chilly than in the center of the coach. I suggest you to change seats if the temperature is too low.
The train personnel only has limited possibilites to adjust the room temperature of the Fernverkehrs-Doppelstockzug.