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I think my Jandy RS 8 controller is dead, but could also be…

Customer Question
I think my Jandy...

I think my Jandy RS 8 controller is dead, but could also be the transformer. Can you recommend a method that I might try to verify before ordering parts ? I have a multi-meter handy, and I know my way around the main control box pretty well.

Contractor's Assistant: Thanks. Can you give me any more details about your issue?

All the lights on the Aquilink display are lit up. All buttons on the control board are non-responsive, including reset.

Submitted: 2 years ago.Category: Pool and Spa
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Answered in 16 hours by:
1/30/2016
Pool and Spa Expert: Billy, Technician replied 2 years ago
Billy
Billy, Technician
Category: Pool and Spa
Satisfied Customers: 23,155
Experience: Licensed in Hydronics and Boilers
Verified

hello,

can you first tell me what power value enters the transformer and then the low voltage leaving?

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Customer reply replied 2 years ago
Well, funny story. In trying to measure the primary and secondary on the transformer, the control board suddenly started working. Can't think of what I might have done that I didn't try a dozen times already - removed and retightened wire nuts on the input AC line, discarded the old 9V battery, pushed the reset again - but no forehead-slapping breakthroughs.Now everything is working - transformer seeing 120 VAC on the primary, putting out 27 VAC on the secondary. DC voltages on the red terminal bar seem about right: 9.5 V.
My spa remote doesn't work - I leave that connector disconnected to avoid the ghosting problems discussed here in another thread.Guess I didn't need the expert help after all, but never very comforting to fix something without knowing what you did.
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