How to fix Baxi Platinum fault code F62

What does the Baxi Platinum F62 fault code mean?

The F62 fault code on a Baxi Platinum boiler indicates that the domestic hot water (DHW) temperature is too low, which can affect the performance of the hot water supply. This issue may arise from various factors, including sensor malfunctions or flow problems.

Common Causes

  • Faulty DHW Temperature Sensor: If the temperature sensor is malfunctioning, it may not accurately read the water temperature, leading to the F62 error.
  • Blocked Heat Exchanger: A blockage in the heat exchanger can restrict the flow of water, preventing it from reaching the desired temperature.

Can I fix it myself? (DIY)

It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that require professional handling. Attempting DIY repairs could be dangerous.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for resolving the F62 fault code is around £150 to £250. This includes the replacement of the temperature sensor or cleaning the heat exchanger, which are common solutions for this fault.