Astral Heat Pump Flow Switch – 83000068 Genuine Spare Part (Fixes E3 Error)

Astral Heat Pump Flow Switch – 83000068 (Fixes E3 Error)

If your Astral heat pump is displaying an E3 error code, a faulty or failed flow switch is the most common cause. The flow switch detects water movement through the heat pump and prevents the unit from operating without adequate flow — protecting the heat exchanger from damage. Replacing the flow switch with this genuine Astral / Fluidra part (83000068) will resolve E3 flow errors in the compatible models listed below.

Note: This is part 83000068. If your heat pump is a Pinnacle IHP SD 250/315 or Viron IHP195/IHP242/IHP283, you may need flow switch 83000069 instead. Check your model below before ordering.

Compatible With

• Astral Eco Inverter 7kW, 8kW, 12kW & 18kW heat pumps
• Astral Eco Lite 12kW, 16kW & 18kW heat pumps
• Astral Pinnacle IHP SD 107, SD 125, SD 153 & SD 217
• Astral Viron IHP90 9kW Inverter Heat Pump (R32)
• Astral Viron IHP120 12kW Inverter Heat Pump (R32)
• Astral Viron IHP170 17kW Inverter Heat Pump (R32)
• Evo Heat – all models

Key Features

• Genuine Astral Pool / Fluidra replacement part – SKU 83000068
• Direct replacement for the original heat pump flow switch
• Resolves E3 flow error codes on compatible models
• Protects the heat exchanger by detecting adequate water flow before operation
• Also suits all Evo Heat models

Frequently Asked Questions

What is an E3 error on an Astral heat pump?
An E3 error code indicates a flow switch fault — the unit is not detecting sufficient water flow. This can be caused by a failed flow switch, low water flow, or a blocked filter. If flow and filtration are confirmed adequate, replacing the flow switch is the recommended next step.

What is the difference between flow switch 83000068 and 83000069?
These are two different flow switch parts for different model ranges. Part 83000068 suits the Eco Inverter, Eco Lite, smaller Pinnacle IHP SD, and smaller Viron IHP models. Part 83000069 suits the larger Pinnacle IHP SD 250/315 and Viron IHP195/IHP242/IHP283. Check your model number carefully before ordering, or call us on 02 9137 8914 for advice.

Which heat pump models does 83000068 suit?
See the full compatible model list above. If your model is not listed, call us on 02 9137 8914 to confirm the correct part for your heat pump.

Is this a genuine Astral Pool part?
Yes. This is the genuine Astral Pool / Fluidra heat pump flow switch (SKU 83000068), not an aftermarket substitute.

Can I install this flow switch myself?
Flow switch replacement involves plumbing and electrical connections and should be carried out by a qualified pool technician or licensed electrician. Call us on 02 9137 8914 for advice or a referral.