How much does it cost to fix Potterton error code HIGH WATER FLOW RATE?

Typical repair cost for the Potterton HIGH WATER FLOW RATE fault is £120-250 including labour.

HIGH WATER FLOW RATE Medium

Potterton HIGH WATER FLOW RATE Fault Code

Q: What does the Potterton HIGH WATER FLOW RATE fault code mean?

Your boiler is struggling because the water is moving through it too quickly for it to heat up properly.

Also written as HIGHWATERFLOWRATE — same fault.

The Potterton HIGH WATER FLOW RATE fault code means: your boiler is struggling because the water is moving through it too quickly for it to heat up properly.. It appears on 1 Potterton model in our database.

Technical description: See LOW WATER TEMPERATURE

Typical repair cost £120-250 (including labour)

Engineer required

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

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Potterton models that show the HIGH WATER FLOW RATE fault code

Click a model for the full fault code list and model-specific repair notes.

Main Mersey Super Repair: £120-250

Source

Potterton HIGH WATER FLOW RATE fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026