Baxi Quinta Ace fault H.01.13

Max THeat ex

Appliance

What it means

Heat Exchanger temperature has exceeded the maximum operating value

Likely causes

  1. Flow circulation issue
  2. Sensor fault
  3. Heat exchanger contamination
  4. Air in system

Where to start

  1. Check the circulation (direction, pump, valves)
  2. Check the water pressure
  3. Check that the sensors are operating correctly

The full answer, free

  • 3 more checks in order
  • How to put it right, step by step
  • The manual page for this fault (page 76), right under the answer

Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.

From the Baxi manual for the Quinta Ace. Check the model on the data plate before you order parts.

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