Describe
Note the symptom, the code if any and when it appears.
Viessmann · RepairsRepairs Viessmann
Repairs Viessmann
by Van Molder.
Repairing Viessmann equipment: diagnosing the fault, reading the code shown and the right repair.
Is your Viessmann equipment stopping, not heating or showing a code? Tell us the symptoms, the model and the full code: they guide the diagnosis and avoid unnecessary work.
Below you will find the Viessmann error codes with their meaning, likely cause and safe steps. They help you describe the fault; only an engineer can diagnose it on site.
Is your Viessmann (Vitodens) boiler showing a code or due for servicing? Tell us the model, the full code and your town so we can prepare the visit.
Viessmann repairs: what we do
- Reading the code shown on your Viessmann
- Checking the safety devices concerned
- Repairing or replacing the faulty part
- Heating breakdowns
- Leaks and pressure loss
Viessmann repairs: how it works
Make safe
Turn off the water if a leak requires it; in case of gas or CO, leave the premises and call the emergency services.
Diagnose
The engineer checks the installation before proposing the right repair.
Viessmann error codes
Meaning, likely cause and safe steps for the most common codes on your Viessmann.
15 error codes found
Viessmann repairs: frequently asked questions
Do you work on Viessmann equipment?
Yes, depending on the model and parts availability. Tell us the exact reference of your Viessmann appliance.
How do I describe my Viessmann problem?
Note the model, the full code shown, the functions affected (heating, hot water) and since when. A photo of the screen helps if it can be taken safely.
Can I look up what a Viessmann code means?
Yes, our error-code guide helps you read the display. It replaces neither your model’s manual nor an on-site diagnosis.
What should I do while waiting for the engineer?
Turn off the water supply if there is a leak and note the code shown. Do not open the appliance and do not keep resetting it.
Can I look up what an error code means?
Yes, see our error-code guide by brand. It helps you read the display but does not replace an on-site diagnosis.
Other services for your Viessmann
Installation ViessmannInstallation of your heating and plumbing equipment.
Servicing ViessmannFor optimal operation and a longer service life.
Replacement ViessmannModernising your old equipment.
Repairs: other brands
Viessmann repairs: let’s talk
Give us the model, the code if any and your town and we will get back to you.