Red Seal Plumbing Practice Exam 2026 – Comprehensive All-In-One Guide for Exam Success!

If the zone valve drive motor fails to operate, the best course of action for the plumber is to replace the defective motor. Cleaning, lubricating, or adjusting the settings will not fix a motor that is no longer functioning properly. These options may be useful maintenance steps for a functioning motor, but they will not fix a motor that has already failed. In order to ensure the system operates correctly, it is important to properly diagnose and replace any defective components.