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.

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