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[SOLVED] Red light flashing after turned off stereo unit on Hotspring Grandee [IQ2020]


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Hi,

Curious, it worked well until I turned off stereo amp unit. Then it stopped and just the recirculating pump is on. No more display. I shutoff the breaker ad shut it back, it seems ton restart, display panel turn on and turnoff after a few seconds. 

Is there a link between the audio unit and the main control other than power supply?

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The power supply connects to the circuit board, so it could potentially damage it. But the symptom you describe is usually a heater flow issue or faulty sensor. Remove filters and try it out. If it works, get new filters or thoroughly clean them with a cleaning solution.

If not, turn off power, remove the side panel, remove the cover on the plastic box, turn on power. Are there any LEDs on the circuit board lit? Post a pic of the circuit board.

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I found and the problem. The audio amp is linked to main control unit with both AC power en I2C connection. I unplugged the I2C cable on main board and it works back. I also unplugged the wireless audio unit and its I2C connection to IQ2020. Problem solved.

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  • Laurentg changed the title to [SOLVED] Red light flashing after turned off stereo unit on Hotspring Grandee [IQ2020]

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