107
FAULT CODE
Ariston
Low Water Pressure with No Reset
Medium Severity
DIY Check Possible
System pressure is critically low and the boiler has locked out. Unlike code 106, this will not clear with a simple reset until pressure is restored.
Step-by-Step Fix Guide
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Step 1
Repressurise the system via the filling loop to between 1.0 and 1.5 bar
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Step 2
Reset the boiler
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Step 3
If you cannot restore pressure or it drops very quickly, call a Gas Safe engineer to check for leaks
Gas Safe Reminder
Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.