Pool Heat Pump Flow Switch
This universal pool heat pump flow switch is designed to suit the major branded pool heat pumps and electric pool heaters available on the Australian market. It monitors water movement through the heater and ensures the system only operates when sufficient flow is detected. This protects the heat pump from overheating, prevents dry-running and improves overall system safety and performance.
Built using high-temperature, chemical-resistant materials, this flow switch offers long service life in harsh pool environments, including saltwater, mineral and chlorinated pools. It is a direct replacement for OEM flow switches used by leading heat pump manufacturers.
Choose your heat pump brand above and add the flow switch to your cart.
Universal Pool Heat Pump Flow Switch
- Application: Detects adequate water flow through pool heat pumps
- System type: Electric heat pump and pool heater flow protection
- Material: High-impact polymer housing with stainless sensor blade
- Installation: Direct inline replacement with a simple two-wire connection
Features & Benefits
- Universal design compatible with major pool heat pump brands.
- Protects the heat pump from overheating by preventing dry-running.
- Improves system safety by ensuring the heater only operates with adequate water flow.
- Chemical and temperature-resistant materials provide long service life in harsh pool conditions.
- Simple installation using the existing threaded fitting and two-wire connection.
- Restores proper operation in systems displaying low-flow, flow-fault or “no water flow” errors.
Compatible Pool Heat Pump Brands
This universal flow switch fits a wide range of residential pool heat pumps, including:
- Aquatight heat pumps
- Aquark and Mr. Perfect heat pumps
- AstralPool Eco heat pumps
- Davey heat pumps
- EvoHeat DHP, Fusion, Force and Inver heat pumps
- EZIHEAT Infinity and Serenity heat pumps
- Fairland heat pumps
- Grannus heat pumps
- Guardian heat pumps
- Heatseeker heat pumps
- Henden heat pumps
- Hayward heat pumps
- Madimack Elite, InverEco, Eco and GT heat pumps
- Nancent heat pumps
- Orilux heat pumps
- Pentair UltraTemp HX, HXi, VX and VXi heat pumps
- SENSAHEAT heat pumps
- SPRSUN heat pumps
- Sunlover heat pumps
- Theralux Heat Pumps
- TiLAB heat pumps
- Waterco heat pumps
- WaterNex heat pumps
- Zodiac heat pumps
- OEM and rebranded pool heat pumps using two-wire blade flow switches
Common Symptoms of a Faulty Flow Switch
- “Low Flow” or “Water Flow Fault” displayed on the controller
- E03 water-flow error
- Heat pump starts and then shuts down repeatedly
- Heater will not start while the pool pump is running
- Intermittent heating
- Inconsistent temperature output
What This Flow Switch Replaces
This universal model replaces the threaded inline, two-wire blade flow switches used across the heat pump brands and models listed above.
Pool Heat Pump Flow Switch FAQs
What does a pool heat pump flow switch do?
A pool heat pump flow switch detects water movement through the heater. It allows the heat pump to operate when sufficient water flow is present and helps prevent operation without adequate water circulation.
Which pool heat pump brands does this flow switch fit?
This universal flow switch fits major brands including EvoHeat, Madimack, Pentair UltraTemp, AstralPool, Zodiac, EZIHEAT, Fairland, Hayward, Waterco, Davey, Henden, Sunlover, SENSAHEAT, SPRSUN, TiLAB, WaterNex and all other compatible heat pumps as listed above.
Can a faulty flow switch cause an E03 error?
Yes. A faulty pool heat pump flow switch can cause E03, Low Flow, Water Flow Fault and similar water-flow errors. It can also prevent the heater from starting or cause it to shut down during operation.
Is this a two-wire pool heat pump flow switch?
Yes. This is a threaded inline blade flow switch with a simple two-wire sensor connection. The flow switch includes a 1.5m length cable.
Can this flow switch be delivered throughout Australia?
Yes. HeaterFix supplies pool heat pump flow switches and replacement pool heater parts throughout Australia.
Why Buy from HeaterFix?
- We are 100% Australian owned & operated.
- We are fully qualified with gas license - GF9918.
- We are Warranty agents for many pool heater manufacturers.
- We have been installing pool & spa heaters since 1995 (30 years)
- We are Australia's number 1 supplier of pool and spa heaters, parts & accessories.
- Our 300sq mt warehouse stores over 10 brands of gas heater and pool heat pumps with over 3000 new heater parts & over 500 used parts.
- We offer fast shipping to you door, Australia wide.
- We provided support like no other because we are the people who install, service and repair pool & spa heaters.
If your reading this then we can guarantee you, you've come to the right place.
What Our Clients Say!
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He had our Pool Heater installed a few weeks ago, and the advice on the best location and positioning was more than just fit and leave it was working within the space and surroundings to suit our needs. Price is important, but you always remember the quality. Thank You.
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This is one professional Company. I had an issue with my gas spa heater. I spoke with Jason who guided me through a couple of self checks and finally isolate the problem. His advise and knowledge was outstanding. The parts were promptly sent, installed and operation is perfect. Highly recommended.
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