Signs of a failing tempering valve
Showers that won't get properly hot even though the system is heating, water that's too hot at the bathroom tap, temperature that swings up and down, or a valve that's leaking.
Testing and replacement
We test the temperature at your outlets, check the valve and its strainers, and replace it if it can't hold a safe, steady temperature. Many valve makers recommend regular testing and servicing or replacement around every five years. Check the valve maker's instructions for yours.
Common questions
Why is my hot water lukewarm even though the system is working?
A failing tempering valve is a common cause. It may be letting too much cold water through. Testing the temperature before and after the valve confirms it.
Do I need a tempering valve?
In Queensland, hot water to bathrooms in new and replacement installations must be delivered at no more than 50°C, which is usually done with a tempering valve.
Sources and further reading
- Business Queensland: hot water systems (temperature control devices on new and replacement systems)
- QBCC: Form 4 notifiable work (installing, replacing or removing a water heater)
- Clean Energy Regulator: solar water heaters and air source heat pumps (STC eligibility)
- Residential Tenancies Authority: emergency and routine repairs
Tempering valve replacement near you
We cover every suburb on the Sunshine Coast and in Noosa. Popular areas include: