Furnace And Air Conditioner Will Not Turn On

If your central air conditioner will not turn on try to troubleshoot the problem yourself before calling a serviceman out to your home.

Furnace and air conditioner will not turn on.

However if it is too cold then there is a problem with the heating unit. Another reason the rv air conditioner won t turn on is the faulty thermostat. In the case of a wall mounted thermostat use a multimeter to check its voltage. However you should examine the ac system s control board if both thermostat and capacitors are functioning.

Air conditioners and furnaces are often installed with an on off switch that looks just like the light switches in your home only this switch is there so that lazy hvac proletarians like me can easily remove power while troubleshooting and servicing. Check your air filter if your furnace won t turn on. Check the circuit breaker for your ac or heater unit and inspect the fuses. This can cause your furnace to turn off as a safety feature to prevent overheating.

Your furnace will not turn on if your air filter is clogged. Your next step should be to check your air filter. Unscrew and replace any fuses that are blown. Look at the inside portion of your air conditioner and all around it for a light switch.

There s a good chance that the problem is a tripped breaker if the circuit was overloaded. The problem could be a simple issue like an incorrectly programmed thermostat or a clogged filter. Below are the most common reasons your ac won t turn on. If you can make the blower run then we know the problem is not with the blower motor or drive belt or assembly and we d go to step two.

If your ac unit won t turn on the first thing you should check is if there was a blown fuse or a tripped breaker. Your system probably has a manual fan on switch on the thermostat or if not there may be a fan on push pull switch right on the fan limit switch in the air handler. A circuit breaker tripped. The unit does not turn on after it hasn t been used for some months it s not uncommon for an ac unit to not turn on at the beginning of the cooling season.

Our atlanta air conditioning experts have some tips about the most common problems you ll encounter with your air conditioner. Video of the day volume 0. This is especially common during the summer months when temperatures rise and your air conditioner unit is working hard to keep you cool. If it is not too cold but not too hot then the furnace might be fine and you can turn it back on.

It is defective if touching its wires to each other turns on the ac system. If you have to do any further checking contact the company that sold you the furnace or go online to the manufacturer s site for more information.