Viessmann D6 Error [new] -

| Fix | DIY Cost | Pro Cost (Parts + Labor) | |------|-----------|---------------------------| | Clean electrode | $0–$5 (sandpaper) | $100–$150 | | Replace electrode | $20–$40 | $150–$250 | | Clear frozen condensate | $0 | $80–$120 | | Replace PCB | $200–$350 (part only) | $500–$800 |

: 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

Press the "Reset" button (usually labeled with a lightning bolt or "R"). Sometimes a temporary glitch causes the error. Inspect the Tubes: | Fix | DIY Cost | Pro Cost

Visually inspect the external flue terminal for any blockages. Reset the Boiler: viessmann d6 error