This Old House
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Stair Railing, Smart Show House | Ask TOH

Coming up on Ask This Old House Richard discusses the possible causes and solutions for a frozen air conditioner; Tom fixes an end cap on a stair railing that keeps coming loose; Ross travels to Napa to tour a house that's testing out a variety of interconnected smart home devices.   How to Diagnose A Frosty Air Conditioner Richard discusses the possible causes and solutions for a frozen air conditioner. Where to find it? Air filters on HVAC equipment should be changed or cleaned periodically.

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