601
FAULT CODE
Ariston
Fan Fault
High Severity
Engineer Required
The fan is not starting, running too slowly, or has stopped unexpectedly. The boiler cannot safely ventilate combustion gases.
Step-by-Step Fix Guide
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Step 1
Listen for the fan — it should start before the burner
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Step 2
A Gas Safe engineer will test the fan speed and electrical connections
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Step 3 Engineer only
The fan motor 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.