2021 Holiday Schedule for Technical Support
Technical support at Viessmann Canada will be closed on the dates listed below.
Our normal business hours are 8:00 am to 8:00 pm (Eastern Time) Monday through Friday.
Our office will be closed for the Thanksgiving holiday on:
- Monday October 11
We will be open again on Tuesday October 12.
If you have a Viessmann fault code, please take a look at our Fault Code Checker for troubleshooting information.
If you are looking for a contractor in your area, please visit our Contractor Locator.