201
FAULT CODE
Ariston
Flow Temperature Sensor Fault
Medium Severity
Engineer Required
The flow NTC temperature sensor has an open circuit or short circuit. The boiler cannot monitor the outgoing water temperature.
Step-by-Step Fix Guide
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Step 1
A Gas Safe engineer will need to test the flow NTC sensor
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Step 2 Engineer only
The sensor or wiring may need replacing
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.