Wire 110v relay to protect sensitive Zooz Zen23 switch?

All - I've got a couple of Zooz Zen23 switches in front of bathroom exhaust fans. Every couple of months they stop working and have to be power cycled to get working again. Zooz support says those switches are sensitive to the voltage needed to start/run the fans. I like the aesthetic and functionality of the Zen23 switch and would prefer to keep them, but having to power cycle them is pretty annoying. I am aware of the products from fibaro and qubino that address this, but would prefer to keep the Zen23s.

Is there a way to run a simple 110v relay with the switch to basically isolate the switch from the voltage in-rush on fan startup?

Thinking something like this - https://www.amazon.com/dp/B004KNPRBK/ref=nav_timeline_asin?_encoding=UTF8&psc=1

I'm not 100% sure the cause of your power issue, however I would add one of these across the fan wires and and the input power to the switch.


These parts simply provide a low impedance path for voltage spikes, reducing the magnitude of any voltage spike coming in on the line or from the fan when its turned off. It is more likely the spike is coming in on the supply line.

Amazon also sells an equivalent part by NTE. I personally have found NTE parts are substandard (with a big "sub")

If the spike in coming in on the line the relay will not be of help.


Replace it with a GE/Jasco Enbrighten 43074. It is a commercial duty switch rated for fans. This fixed my issues with switches burning up due to fans.