Why is my HVAC system not turning on?
An HVAC system that won't turn on often has a simple cause: dead thermostat batteries, a tripped breaker, or a safety switch that's been triggered.
Check your thermostat first. Replace batteries if the screen is blank, and ensure it's set to the correct mode (Heat or Cool).
Inspect your electrical panel for a tripped breaker. HVAC systems have dedicated breakers that can trip during storms or power surges.
Many HVAC systems have safety switches that prevent operation if a panel is open or the condensate drain is clogged. Check for any obvious safety issues.
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