AP code on Viessmann 100W how to fix

[@legolubinski]

Thank you good man! This got me out of dead AP and brought back warm water!

[@Geweldenaar]

Thank you man. Me and 2 friends rented an appartment and we didnt have any warm water. We looked at the boiler and it gave this code. We tried ur fix and it worked. Easy and quick fix!

[@thornhillplumbing]

Easy when you know how

[@damiancurcan9728]

Perfect! Thanks a lot!

[@thornhillplumbing]

I knew this would help someone

[@MaraScalabrella]

Thank you very much

[@Knowledgeuser]

Mine is Not Running. I push the Button