FREE Thermal heat paste for roof sensor installation
The Senztek SolaStat-Plus 1-3 solar hot water controller is a widely used replacement controller for systems that are not circulating properly, failing to heat, or showing incorrect temperature readings.
If your solar hot water system is not working correctly, the controller is often the cause. This unit is designed to restore proper operation and reliable temperature control across a wide range of systems.
Solar Hot Water Parts includes heat transfer paste and joiners with this controller.
🔧 ✔ Common signs your controller needs replacing
- No hot water or poor heating
- Pump not turning on
- Incorrect temperature readings
- System overheating or shutting down
- Intermittent or unreliable operation
🔧 ✔ Compatible systems
This controller is commonly used in systems including:
- Apricus solar hot water systems
- Hills systems
- Dux solar hot water systems
- Chromagen systems
- Other systems using Senztek controllers
🔧 ✔ What this controller does
Senztek controllers automatically manage water circulation between your roof collectors and tank, ensuring efficient heat transfer and system performance.
🔧 ✔ What you receive
- 1 x SolaStat 1-3 WR Controller
- 1 x 3m inlet sensor
- 1 x 3m tank sensor
- 1 x 20m roof sensor
- Thermal paste and joiners
🔧 ✔ Why choose this controller?
- Proven reliability in Australian solar systems
- Easy plug-and-play installation
- Pre-set settings for quick setup
- Suitable replacement for older Senztek controllers
- Widely used by plumbers and repair technicians
🔧 ✔ When this controller is suitable
- Replacing an existing Senztek 1-3 controller
- Systems already using 3 sensors
- Faulty or ageing controller
🔧 ✔ When it may NOT be suitable
- Systems using different sensor configurations
- Systems requiring 2-sensor or 2-3 models
- Unknown or modified systems
❓ FAQs
Is this a replacement for my Senztek controller?
In most cases, yes — this controller is used as a replacement for Senztek 1-3 models and similar systems.
How do I know if my controller is faulty?
Common signs include no pump operation, incorrect temperature readings, or inconsistent system performance.
Can I install this myself?
Installation is straightforward, but a licensed tradesperson is recommended to ensure correct setup and system safety.
Do I need to replace the sensors as well?
This controller includes sensors, and replacing them at the same time is often recommended for reliability.
Who are Senztek?
Senztek is a local based New Zealand electronics designer and manufacturer that has had a huge impact on the Australian solar hot water market. Their quality range of solar hot water controllers has been purposely built to suit our climate. They supply a large number of leading manufacturers globally - Apricus; AAE; Bosch; Edson; Hills; Neopower; Rotex; SolarArk; Stratco; SolarOz; Solarland; Thermotec; Zen, Sky solar- just to name a few.
Their smart energy controllers include the SolaStat; SolaStat-Plus; SolaStat ST; SolaStat WR; AlphaStat; EcoStat; SolaStat-Pool and the new SolaSmart range. Senztek has spent many years developing and perfecting advanced algorithms and associated controllers able to deliver real savings for solar and electric hot water users.
Solar Hot Water Parts is an approved Senztek distributor of the complete Senztek range. We are continually extending our solar hot water spare parts catalogue to give you the best selection of solar hot water replacement parts to choose from.
We sell the widest range of spare parts to suit any solar hot water service, whether it be a flat plate panel or evacuated tube solar collector. The Solar Hot Water Parts range is now online and ready to order, with complete tech specs to ensure your seamless selection.
If you're unsure which part suits, simply contact us - click here
