A thermostat controls your HVAC system’s functions by determining the amount of heat produced by the furnace.
It can get stuck in the on or off position and affect your heating and air conditioning unit’s normal function.
When it does, you will need to service it by first determining the causes for the sticking, however a build-up of grease, debris and dirt can cause your thermostat to get stuck. When your thermostat gets stuck in the closed position, your HVAC program will overheat since there won’t be any coolant circulation! To service this, you should first turn the power to the HVAC program off. The next step is to detach the cover by following your manufacturer’s instruction. Brush and vacuum the thermostat carefully to remove dust and dirt from the contact point and lever switches. Wipe the several metal strips with a soft cloth and use a crisp dollar bill to detach dirt from the crevices. Then slip a 7/32″ wrench onto the hex nut below the bimetal while you hold the temperature adjustment lever in a stationary position. Turn the hex nut clockwise until you open the switch. Then adjust the lever to the lowest temperature setting, replace the cover and wait for the temperature to stabilize before moving the temperature adjustment lever to correspond to the room temperature, and mount the thermostat in a location where the air is consistent with the room temperature. Regularly cleaning your condo thermostat will help clear grime, dirt and dust. It ensures your HVAC program runs well without any hiccups, consult your HVAC supplier to calibrate the thermostat if you cannot do it on your own. If the thermostat continues to fail despite respected cleaning and maintenance, you should get a updatement from your local HVAC company or get in touch with your HVAC repairman.