Is your Ariston boiler on the blink? In this guide we'll explore some of the most common faults and costs to fix.
You should always call a qualified engineer to free a stuck diverter valve, at which point you may need to clean the valve or replace it entirely depending on the age of the model. If you need to book a boiler repair, visit our myVAILLANT web online portal which gives you control over your boiler’s guarantee, repair and service information.
Switch off the boiler completely by switching the external electrical switch to the OFF position. Shut off the gas valve. Control panel - Keylock It’s possible to lock the control panel of the boiler by pressing the button 10. The display shows the symbol . To unlock the control panel, press again the button 10.
Switch off your boiler and wait for the heating system to cool. Identify and check the boiler pressure gauge. If it’s above 2 bars, you’ll need to reduce the pressure. Ensure the filling loop or relief valve is tightly closed. Bleed your radiators to release trapped air from the heating system. Check to see if the boiler pressure returns to
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Ariston are extremely focused on sustainability, which is good to hear, especially in today’s current climate. Ariston boilers don’t have a great reputation amongst heating engineers as being particularly reliable, but heating engineers all have different opinions on what boilers are good or bad. So what do customers think about AristonCpCTBH.