Vokera Synergy fault E036

Blockage obstruction flue gas high power

Gas boiler

What it means

Flue gas blockage/obstruction detected at high power, definitive alarm.

Likely causes

  1. Certain environmental conditions (not specified further)
  2. Flue obstruction at high power
  3. Flue gas obstruction
  4. Primary heat exchanger requiring cleaning (related to fault E091)

Where to start

  1. Check frequency of notification occurrence
  2. Determine if notification is frequent or isolated
  3. Insert fumes analysis probe until it reaches the stop

The full answer, free

  • 12 more checks in order
  • The readings and component tests from the manual
  • How to put it right, step by step
  • The manual page for this fault (page 27), 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 Vokera manual for the Synergy. Check the model on the data plate before you order parts.

Other Vokera Synergy fault codes