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Billy
Billy, Technician
Category: Pool and Spa
Satisfied Customers: 22108
Experience:  Licensed in Hydronics and Boilers
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My PN 850 has three exclamation marks on the screen: !!!what

Customer Question

my PN 850 has three exclamation marks on the screen: !!!
what does that mean ???
Submitted: 1 year ago.
Category: Pool and Spa
Expert:  Billy replied 1 year ago.
is the unit running while these are present?

It generally means a hardware failure (board)

If you have no response to controls the board is defective

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