Thermostat shows 'Waiting' or 'Delay' and does not immediately start cooling or heating after a setpoint change

Safety: No electrical work is required.

• Wait delay period: Most Ruud smart thermostats enforce a 3–5 minute delay between compressor cycles. Wait at least 5 minutes to see if the system starts.
• Avoid rapid changes: Do not repeatedly change modes or large setpoint swings within a few minutes; this can extend delays.
• Check system status: Ensure breakers are ON and the indoor unit is not in a lockout condition due to other faults.
• Configuration: In advanced settings, verify that compressor protection delay is set to a reasonable value (typically 3–5 minutes) and not excessively long.