Ac Unit And Furnace Running At Same Time

If it s on auto when the heat or the a c comes on the blower comes on.

Ac unit and furnace running at same time.

I just turned the a c on for the first time this year and i noticed that my house was not cooling. This can trigger the heater to turn on. The furnace works off battery but when the unit is plugged into power the air conditioner comes on at the same time blowing cool air. Keeping the fan on creates a more even distribution of heating and cooling circulating the air if you have cold or hot spots in your house like a bedroom above a garage.

In other words your thermostat may be in cool mode but their furnace and ac unit have no way of knowing that. I looked at the thermostat and it was set to 72 the room temp was 79. Brand new furnace i replaced last winter. Less frequent starts and stops of the fan can reduce the stress from startup and potentially help extend it s lifespan.

The thermostat s connection to the furnace and ac unit may become disconnected. If you are planning to replace your air conditioner you may want to seriously consider replacing the furnace too and plan accordingly as there are plenty of practical reasons to do it. I felt the air coming out of the register and it was warm. One for the furnace and the other for the a c.

In the rv there are 2 blowers. Pros to running fan on air conditioner continuously. Replacing your air conditioning unit and your furnace at the same time might be expensive but it can save money in the long run. On will run the air conditioner blower continuously when ever ac power is.

Replaced thermostat and board in furnace seemed to fix problem but it answered by a verified hvac technician we use cookies to give you the best possible experience on our website. When we are plugged in to power and turn the furnace on the ac fan kicks in and blows air out of the roof vents at the same time as the floor vents are blowing hot air. If you switch it to manual the blower runs all the time to circulate air. Or the wiring from the thermostat to the units could short out.

The ac kicks on and starts blowing cold air and about 2 min later the furnace ignites and the all the fr. Ac is running fine freon etc all good to go. The furnace blower comes on automatically and only when the thermostat calls for heat regardless of thermostat fan settings. So i checked on the a c and it was running.

These shorts can be caused for some reasons. We have a 2012 greystone 33ck. Furnace is running a c and heat at same time.