Each of two bathrooms in the Condo we just purchased, has a ceiling exhaust fan and corresponding control switch. For some reason, changing the state of the fan in either bathroom, by changing its corresponding switch, simultaneously changes the fan in the other room to the same state. In other words, both fans are actuated on together (and off together) when ever either of the switches is actuated.

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    Welcome to the site Dan. You forgot to ask a question. You described a situation, but didn't say anything else. – JPhi1618 Jul 16 '19 at 20:42
  • Quality exhaust fans usually have a timer so they run for a tine after the light is turned off... – Solar Mike Jul 16 '19 at 21:01
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    Is this definately two separate fans, or one shared fan and two duct inlets? – Owain Jul 16 '19 at 21:27
  • Are the two bathrooms on the same circuit? – ThreePhaseEel Jul 16 '19 at 22:40
  • Sounds like you have 2 fans connected together with a pair of 3-way switches controlling them. Strange... – manassehkatz-Reinstate Monica Jul 16 '19 at 23:02

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