White-Rodgers 1F56N-444 Thermostat Inspect the base of the

Inspect the base of the humidifier for water bypass or crystallization around the fitting

but never lower

As an auto-reset thermal switch

maintaining internal pressure integrity and protecting the adjustment spring button from environmental debris and mechanical interference

For enhanced protection

White-Rodgers 1F56N-444 Thermostat Inspect the base of theFor service calls requiring a reliable, mercury free solution, the White Rodgers 1F56N 444 Thermostat is the industry standard for 24V 1H 1C systems. This mechanical thermostat features snap action contacts enclosed in a dust cover to ensure long term switching reliability in dusty or high vibration environments. As a universal low voltage heating and cooling thermostat, it provides precise control for single stage gas, oil, or electric systems. The