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[sharrisct25]

I read a number of posts but they were related to wireless commands I am having issues right at the switch.  Anyway I was replacing a normal switch that turns on my whole house fan with a XPS3 switch.  I have used these before and gotten lots of help with the wiring so I am very confident it is right. 

Once wired up I turned the breaker back on and hit the switch and the fan turned on, then he problems started when I tried to hit the switch again the fan would not turn off.  I then tried another XPS3 and again same result.  Then to turn the fan off I put the timer back to 0 and accidently hit the XPS3 an guess what it worked.  After some reading and troubleshooting here is the situation

- When the connection between the fan and the switch is unconnected (I pulled out the timer) the switch works completely both manually and via wireless remote.
- When the timer is in but set to 0 the switch works manually but will not work via wireless remote
- When the timer is in and above 0 the switch will not respond to wireless commands but does turns on manually then will not turn off.

Is the problem line noise from the fan?

[dave w]

- When the connection between the fan and the switch is unconnected (I pulled out the timer) the switch works completely both manually and via wireless remote.
- When the timer is in but set to 0 the switch works manually but will not work via wireless remote
- When the timer is in and above 0 the switch will not respond to wireless commands but does turns on manually then will not turn off.

Is the problem line noise from the fan?

Unless you bypass the timer and connect the XPS3 switch directly to the fan, it makes it difficult to tell.
The timer could also be generating noise if it is an electronic timer, versus an old mechanical timer. I think the timer (especially if it is electronic) is your culpret.

[sharrisct25]

My apologies after reading this post I now see that I was not specific about this point.

Without any timer at all the switch will turn on manually but not wirelessly, it will not turn off manually or wirelessly once turned on.