How to eliminate F53 error in boiler Vaillant?
- Error: F53
- Description: Mass flow sensor failure
- Solution: Defective mass flow sensor. Filter under the wet or blocked venturi filter plug, gas flow pressure too low
If you find an error in your Vaillant boiler and cannot solve it, we recommend that you contact the technical or specialist service in heating equipment. They can advise and solve the problem quickly and efficiently.