Error: Viessmann D6

Tools needed: Torx T20, fine sandpaper or steel wool, multimeter with microamps.

: If the error persists, a gas-safe engineer should measure the voltage to the fan and test the pressure switch's continuity. ⚠️ Safety Warning viessmann d6 error

Have you fixed a D6 error on your Viessmann? Share your experience in the comments below. Tools needed: Torx T20, fine sandpaper or steel