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State Diagram Updated 8/29/2026

Thermostat State Machine

State machine for a thermostat showing how it moves between Idle, Heating, Cooling, Off, and Lockout from Start to End. It captures the operating modes and the transitions between normal control and safety lockout states.

state machinethermostathvac controlheating and coolinglockout
7 nodes 12 connections

How can I use this state diagram?

Download the Thermostat State Machine as a PNG or SVG, or open it in the studio to edit your own copy. To draw a similar state diagram from a description, use the state diagram generator; for notation and a step-by-step walkthrough, read how to draw a state diagram; and browse more state diagram examples for related layouts.

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State diagram of a Moore machine with states Start, S0, S1, S2, S3, and End, showing seven directed transitions. It illustrates a finite-state sequence where outputs are associated with states rather than transitions.

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