Cookson Controls 20433-3-1 | Hotwater Thermostat Adjustable Universal 50-70 Deg | WIM2
$19.80
$18.00 ex. GST
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This can occur if the thermostat is malfunctioning or incorrectly calibrated and should be checked by a licensed professional.
Sparky Direct supplies a range of hot water thermostats with fast Australia-wide delivery.
Yes, installation and replacement should always be performed by a licensed electrician to ensure compliance with safety and legal requirements.
Most quality thermostats include a manufacturer’s warranty, which varies by brand and supplier.
Yes, thermostats and heating elements are often sold as separate components, though compatibility is essential.
Check your hot water system’s brand, model, voltage, and temperature requirements to ensure compatibility.
Replacement is usually considered when temperature control becomes unreliable or during major system servicing.
Yes, if it overheats or remains hot, it can lead to unnecessary energy use.
Yes, thermostat performance influences how quickly the system reheats water after use.
Some thermostats are adjustable, but any adjustment or inspection should be carried out by a licensed electrician.
Minor variation can be normal, but frequent or large changes may indicate an issue with the thermostat or heating element.
Yes, mineral buildup and sediment inside the system can affect overall performance and may contribute to premature component wear.
Lifespan varies, but many thermostats last several years depending on water quality, usage, and operating conditions.
A hot water thermostat is a temperature-control device that regulates the temperature of the water in a storage hot water system by switching the heating element on and off.
Yes, if the thermostat is faulty or incorrectly set, it may not heat water to the correct temperature or may shut off too early.
Common signs include water that is too hot, not hot enough, inconsistent temperatures, or running out of hot water quickly.
While primarily a control component, it contributes to overall system safety when used alongside other safety devices such as thermal cut-outs and tempering valves.
The thermostat helps prevent overheating by cutting power to the heating element once the set temperature is reached.
Most electric hot water thermostats are designed for standard Australian mains voltage, typically 240V, but specifications should always be checked.
No, thermostats vary by brand, voltage, temperature range, mounting style, and system compatibility.
Yes, a correctly operating thermostat helps maintain stable water temperatures and prevents unnecessary heating, which can reduce energy consumption.
Single thermostat systems control one heating zone, while dual thermostat systems manage separate upper and lower heating elements for improved efficiency and recovery time.
Most electric storage hot water systems use one or more thermostats to control heating and protect against overheating.
Hot water thermostats are generally designed to comply with relevant AS/NZS electrical and safety standards, depending on the appliance and application.
Storage hot water systems are typically set to at least 60°C to reduce the risk of bacteria growth, in line with common Australian health and plumbing guidance.
