I have a 2 zone system accidentley add 3 and 4 how do I get rid of 3 and 4 on the home screen (Coleman Mach 9420A330 Multi-Zone Wall Thermostat)

Staff Answer

May 28, 2026 - 12:23 PM

On the Coleman Mach 9420A330 thermostat, go to the settings menu, open zone settings. There should be a setting for the number of zones. Change this back to 2 zones and return to the home screen. Zones 3 and 4 should no longer appear. If 3 and 4 are still showing after changing the setting, try cycling power to the thermostat/system and checking again.

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