Worcester Bosch Flow Temperature Fluctuating

The flow temperature fluctuated due to hot water demand. The customer experienced hot and cold water from the shower outlet.


  • Clarendon Road, Sale M33 2DZ

Property Type:

  • 5 Bed Detached

Boiler Type:

  • Worcester Bosch

Worcester Bosch Flow Temperature Fluctuating in Sale - Manchester Plumbing and Heating (Sale)

Job Report

Gas Type: Natural Gas

Problem: Temperature fluctuation on hot water demand. Boiler cutting out after overheating.


  • Boiler was running hot then cold


  • Blocked secondary heat exchanger

Repairs Performed:

  • Replaced the secondary heat exchanger


  • Boiler is now operating normally and should continue to do so for the years to come.
  • Going forward we recommend that the boiler is serviced annually to prevent future issues.

Additional Information:

Replaced the secondary heat exchanger and seals. Recommended that the boiler and system to be cleaned with a power flush machine to prevent any further boiler repair callouts.

The system required dosing with an anti corrosion inhibitor.

A visual inspection and check of the boiler was carried out, followed by a gas safety check and a flue gas analysis.


Problems with your Worcester boiler? Manchester Plumbing and Heating (Sale) provide fast and Efficient Worcester Boiler Repairs in Sale Manchester! Our experienced team is here to provide fast and efficient repairs, ensuring your home remains warm and cosy.


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