What does the Ferroli 42 fault code mean?

Your boiler has temporarily paused because it detected a measurement that was slightly outside its normal limits, and it will try to restart itself automatically once everything settles down.

How much does it cost to fix Ferroli error code 42?

Typical repair cost for the Ferroli 42 fault is £80-200 including labour.

Ferroli 42 Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

Temporary shutdown fault - resets automatically as soon as the value comes back within the boiler’s normal working range

From this model's manual

Verified against the Ferroli Optimax installation & service manual.

DIY fix possible

Wait for 10-15 minutes to see if the boiler resets and restarts itselfCheck that your radiators are bled and there is no air in the systemEnsure your boiler pressure is topped up to between 1 and 1.5 bar

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Boiler cover options

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Your boiler has temporarily paused because it detected a measurement that was slightly outside its normal limits, and it will try to restart itself automatically once everything settles down.

What the manual says

DIY fix possible

Avoid the next call-out bill

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