If your Worcester boiler is producing hot water but not central heating, it’s a common but critical issue that must be addressed—especially in tenanted properties, where failure to restore heat could breach housing regulations. At Fraser Bond, we provide diagnostic guidance and emergency repair coordination for boiler faults across Greater London, ensuring safety, compliance, and tenant comfort.
This guide explains possible causes, legal responsibilities for landlords, and what to do next if your Worcester boiler is failing to heat your home.
Worcester Bosch boilers are widely installed across London homes. If hot water is functioning but radiators remain cold, potential faults include:
The diverter valve switches heat between taps and radiators. If stuck or faulty, the boiler may only deliver hot water. This is the most common issue and requires professional repair.
Check whether your wall thermostat is calling for heat and the boiler timer is set correctly. Low battery or outdated controls can prevent the system from activating central heating.
If pressure is below 1 bar, the heating circuit may not operate. You may need to repressurise the system using the boiler’s filling loop.
Bleeding radiators may restore flow if air pockets are preventing circulation.
If the internal circulation pump has failed or is stuck, the boiler can’t push hot water to the radiators—requiring engineer replacement.
If you’re a landlord in London and your tenant reports no heating, you must respond swiftly. Under the Landlord and Tenant Act 1985 and the Housing Health and Safety Rating System, landlords must:
Ensure safe and operational heating
Provide urgent repairs to boiler systems
Restore warmth to prevent health risks or property damp
Fraser Bond helps landlords stay compliant by coordinating certified engineers and issuing post-repair documentation suitable for insurance, council, and tenancy records.
Our experienced property management team handles:
Emergency boiler diagnostics and repairs
Same-day Gas Safe engineer attendance
Boiler replacement quotations where necessary
Tenant coordination and access scheduling
CP12 certification post-repair where applicable
Post-fault heating system tests and compliance reporting
All services are delivered via vetted contractors under Fraser Bond’s managed maintenance umbrella—ensuring transparency, protection, and fast resolution.
If your Worcester boiler is producing hot water but no heating, don’t delay. Fraser Bond offers specialist boiler diagnostics and landlord support across London, ensuring your property remains safe, warm, and legally compliant.
Visit FraserBond.com to book an engineer visit or include boiler fault resolution in your landlord maintenance strategy.
