How to Set the Cycles on a Honeywell Thermostat

Honeywell thermostats have a variety of features, including the ability to set heating and cooling schedules for both weekdays and weekends. The Honeywell Chronotherm III has an added feature of adjusting the heat cycle rate. Though you can change the factory-set cycle rate of six cycles per hour, you cannot change the cooling cycles.

  1. Find the cycle rate adjustment screws above the batteries in the back of your thermostat.

  2. Look for labels "1A" and "1B" on the screws.

  3. Find the cycle rate that matches your type of furnace. For a gravity air or steam furnace, 1A and 1B should be out. 1A should be in and 1B should be out for a hot water or high-efficiency forced air furnace. For an electric furnace, 1A should be out and 1B should be in. The factory setting (1A and 1B both in) is ideal for gas or oil forced air systems.

  4. Use a screwdriver to adjust the screws. The "In" position of the screw fits snugly in the thermostat and is the factory setting. The "Out" position of the screw will be achieved with one full turn of the screw.