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How to diagnose an occupancy sensor that always detects motion?

Home Improvement Asked on March 18, 2021

I’ve had a Lutron Maestro MS-OPS2 installed in a closet for 3 years and it has worked flawlessly. Recently it started turning on and staying on. To my knowledge, nothing has changed. I can manually turn the switch off but after about 30 seconds it turns back on again. I have experimented with the different modes in the switch’s manual (vacancy mode vs. occupancy mode), different sensitivity settings, etc. and nothing changes. The switch acts like it sees something.

FWIW, the switch is driving an LED strip that draws about 20W.

My question is: how can I tell if the switch has simply gone bad or if something else in my house has changed? I’ve had no electrical work done recently and I know of no new devices on that circuit or even physically nearby.

One Answer

My bet: you have turned off Off-While-Occupied

Lutron occupancy sensors have what's called an Off While Occupied mode, as described in Lutron's advanced programming guide. With this mode enabled, turning the lights off manually with the tapswitch while you are in the controlled space causes the sensor to keep them off as long as it detects occupancy. However, if you disable this mode, turning the lights off manually with the tapswitch while you are in the controlled space turns the lights off for 30 seconds, but if you are still there once that 30 seconds is up, the occupancy sensor turns the lights back on for you.

So, following the instructions in the advanced programming guide to re-enable the Off-While-Occupied mode should fix your issue.

Answered by ThreePhaseEel on March 18, 2021

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