Low
S.32 on Vaillant ecoMAX

Your boiler has temporarily paused its heating cycle because it detected an irregularity in the air flow system and is waiting for everything to reset itself.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Heat exchanger antifreeze active, as fan speed variation is too high. Appliance is within the waiting time of the operation block function

From this model's manual
Verified against the Vaillant Ecomax installation & service manual, page 45.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

F.32View →S.31View →

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