Solar Hot Water Controller

Name: Solar Hot Water Controller
SKU: SR208C solar hot water controller
Availability: InStock

$185.00 Including GST

Our solar hot water computer controller can used on Rheen Loline, Rinnai, Apricus, Dux, Bosch, Conergy or Resol solar hot water systems, even can be used on swimming pools.

In stock

SKU: SR208C solar hot water controller Category: Solar Hot Water Parts

Solar Hot Water Controller

* Solar hot water Controller perfect to give full control over any type of system

We can replace your Rheen Loline, Rinnai, Apricus, Dux, Bosch, Conergy or Resol solar Hot Water System Controller

SR208C efficient solar controller circuit in solar hot water production with heat pipe vacuum tube collectors, solar flat panels and and great for swimming pools.

SR208C solar controller compares the temperature of the solar collector to the storage tank.

The controller functions:

– Maximum temperature in Tank

– Frost protection panels

– Cooling tank

– Snow removal, manual heating panels

– Memory and screen protection

– Perfect for swimming pools also

– Many more functions

It has LCD display with animated icons, backlit
Easy to use based on icons, LCD screen, wall mounting
Solar collector measuring temperature range: -10 to 220 ^A C
Temperature measurement range storage tank: 0-110 ^O C
Ambient temperature range: -10 to 50 ^O C
Power consumption <3W
Supply voltage 240 V AC, 50 Hz
Dimensions 178mm × 120mm × HxLxA = 43mm
The controller has a built-in capacitor, the capacitor that feeds the controller for a few hours when a power outage occurs
Part includes: Automation, 2 x NTC sensor (consumer), 1 x sensor PT1000 (solar panel) and manual

Rinnai hot water controller

Our Solar Hot Water Controller can be used to replace a Rinnai controller.

The Rinnai solar hot water controller is the user interface for a Rinnai solar hot water system. It lets you monitor and manage how your solar hot water system is working, and in many models, it also controls the gas booster that ensures you still have hot water when solar gain isn’t enough.

Here’s a quick rundown of what it does and how it works:

Main Functions

Temperature Display – shows the water temperature available.
Boost Control – allows you to activate the gas booster manually if solar heating isn’t sufficient (e.g. cloudy days or higher hot water demand).
Mode Settings – some models have timer or “ECO” settings to optimise efficiency.
Status & Error Codes – the controller will display error codes if there’s a fault in the solar or booster system, helping technicians diagnose problems.
Safety Features – prevents overheating or over-pressurisation by working with valves and sensors in the system.

Common Issues

No display / blank screen – could be a power supply issue.
Not heating enough water – booster may not be activating, or solar collectors may not be performing efficiently.
Error codes – indicate specific sensor or system faults (codes differ by model).

Everyday Use

Normally, you leave it on automatic mode so the solar collectors do most of the work.
If you run out of hot water on a cloudy day, you can use the “BOOST” function to kick in the gas heating for guaranteed hot water.

Rinnai hot water controller not working

Our Solar Hot Water Controller can be used to replace a Rinnai controller.

Check the Controller Itself

Power supply
- Make sure the controller has power (some are hardwired, others plug into a wall socket).
- Check if other appliances in the same circuit are working.
- Try resetting the power at the switchboard.
Display
- If the screen is blank, it’s usually a power issue or a failed controller.
- If it shows an error code (like 11, 12, 14, 16, 32, 99, etc.) that points to a specific fault.

🌞 Check the Solar Hot Water System

Booster mode
- If you’re not getting hot water, the electric or gas booster may not be switching on.
- Check the booster switch in your meter box or near the system.
Temperature & Sensors
- Faulty temperature sensors in the tank or collectors can cause the controller to stop working correctly.
Circulation pump
- If the solar pump has failed, the system won’t circulate water to the panels, so the controller might not register heating.

🛠 Common Fixes

Reset the controller by turning it off at power for a minute and then back on.
If it’s a gas-boosted solar system, check the gas supply and whether the unit is showing error codes.
If electric-boosted, check the booster switch and circuit breaker.

🚨 When to Call a Tech

If the controller is still dead, shows persistent errors, or the water isn’t heating despite power being on, you’ll likely need a licensed plumber or Rinnai service technician. These systems combine electrical, plumbing, and sometimes gas components, so professional service is safest.

Aestiva solar hot water controller

The Aestiva S2011 is a differential solar hot water controller designed for forced circulation systems, commonly used in Australian households. It manages the operation of the solar circulation pump by comparing temperatures between the solar collector and the storage tank, ensuring efficient heating and preventing overheating.

🔧 Key Features of the Aestiva S2011 Controller

Dual Sensor Operation: Utilizes two temperature sensors—one for the solar collector and one for the storage tank—to control the pump’s operation based on differential temperature readings.
Smart Heat Management (SHM) Mode: Activates reverse differential control during nighttime to cool the bottom half of the tank, preventing stagnation and thermal shock, especially during summer months.
Manual Pump Override: Allows manual activation of the pump for maintenance or air bleeding purposes. The controller will revert to automatic mode after 2 hours if not manually switched off.
Frost Protection: Engages the pump when the roof sensor detects temperatures approaching freezing, circulating water to prevent frost damage to the collectors.
Plug-and-Play Installation: Comes with a 20-meter roof sensor and a tank sensor, along with thermal paste for easy installation.
Waterproof Enclosure: Rated IP54, suitable for outdoor installation.

🛠️ Installation and Compatibility

Our SR208C solar hot water controller is designed for easy installation with plug-and-play connections. It is compatible with various solar hot water systems, including those from brands like Solargain, Neopower, Aussiewide, Leda, SolarEast, and Solarpower.