Water dripping from the flue terminal outside

Safety first: Be cautious on ladders or when working outdoors in wet conditions.

• Check condensate drain: Inside the appliance, inspect the condensate trap and pipe for blockages. Clear any sludge and flush with clean water.
• Verify pipe routing: Ensure the condensate pipe has a continuous fall to the drain and is protected from freezing.
• Flue slope: A heating engineer should verify that the flue is installed with the correct gradient back to the appliance.
• Inspect joints: If water appears to be leaking from flue joints, have a qualified technician inspect and reseal or replace flue sections.