BoilerFaultCodesPotterton DRY-FIRE Fault Code
Also written as DRYFIRE — same fault.
The Potterton DRY-FIRE fault code means: your boiler has detected that it is not getting enough water or the water is not flowing through it properly, which usually happens if the system needs topping up.. It appears on 5 Potterton models in our database.
Technical description: Flow & Return reversed, system not full of water, or pump/flow switch fault
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 DRY-FIRE fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Potterton DRY-FIRE fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.
- Potterton Envoy 30 manual (PDF)
- Potterton Envoy Plus manual (PDF)
- Potterton Promax SL 24 Heat ErP manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 31 August 2026