Jacuzzi® SmartTub™ App - The flow switch is malfunctioning open

Jacuzzi® SmartTub™ App - The flow switch is malfunctioning open

There can be several reasons why your Jacuzzi® SmartTub™ App shows an alert message "The flow switch is malfunctioning open. Heater is disabled."

Important note: All electrical work must be carried out by a licensed electrician. Any electrical information included here, whether it is troubleshooting or other instructions, are provided for use by a licensed electrician only. Local electrical codes supersede any information found here.
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Let's look at some of the potential causes of this error message.
  1. Low water level
  2. Restriction to flow causing a fluttering flow issue due to low flow (pinched hose, loaded filter that needs to be cleaned, other restriction)
  3. Defective flow switch
  4. Software Reset on board is required
  5. PCB faulty


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