The boiler frequently goes into warm-weather shutdown even when heat is still needed.

Safety first: Turn off power before moving sensors or accessing control menus.

• Check sensor location: Ensure the outdoor sensor is not in direct sun or near heat sources.
• Review reset settings: Using the Ruud control, verify the warm-weather shutdown temperature and reset curve match your climate and system.
• Test sensor: Compare the sensor reading to an accurate outdoor thermometer. Replace if inaccurate.
• Adjust parameters: Increase the warm-weather shutdown temperature or adjust the curve as needed per the manual.