Reset circuit breaker.
Check if you are on a GFCI circuit.
Probably there is no hope, but the sensor has to be removed to replaced, so take it off and hang it upside down and let dry in sun.
There is no repair protocol for fixing motion detectors, because there are no replaceable parts, or circuit boards.
Cover outdoor electronics with plastic bag when washing house. That includes light and pool timers, breaker boxes, low voltage timers, infrared cameras, motion detectors, alarm boxes, etc.
Should the power wash contractor know this? Maybe yes.
We never covered things when washing houses, and we washed 100s per year, but I told the guys not to put pressured water directly on any outdoor electrical system.
Can you prove that the sensor stopped because of washing. No.
The unit could have simply stopped working.earlier that morning, without provocation.
If you need further help, I’m available over the phone at
https://www.6ya.com/expert/gene_9f0ef4df2f9897e7
Are you tesing it during the day time?
Dusk-to-Dawn?® operation ensures lights are non-operational in daylight and only function at night, when needed. Photo controls are used to sense the amount of daylight in the area around the lighting fixture. For motion controlled fixtures with Dusk-to-Dawn?® operation, they become operational (i.e. motion controlled) at night and turn off at daybreak. For non-motion controlled fixtures, they become lighted at night and turn off at daybreak.
http://www.heath-zenith.com/security_sta...
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