Ac Fan Low Or High

The fan mode for central air conditioning systems is entirely different from the fan mode for window box air conditioning units.

Ac fan low or high. I have had a lot of people ask me about gm radiator cooling fan diagnosis in the past. If the high side spikes and the fans don t turn on i would suspect a problem with what is called the a c pressure transducer high side switch one or both fan relays the fan motors themselves an ambient temperature switch or the sun sensor. If your dodge s heater or ac fan will only blow on high or if it intermittently works on low but then stops it is very likely your heater resistor. So if you are running a fan at low speed it gives the compressor and cooling coil time to dehumidify the air rather than just cool it.

It may seem logical to think that a fan for an air conditioner is the same as a fan that you use in a room thought this is not the case. You probably have burnt out low speeds. If your radiator fans are louder than normal. One on the low pressure side before the ac compressor and one on the high pressure side.

If your speed selector for your ac or heat only works on high or low or if its missing any particular speed this video will show you how to fix it once and for all. The fan mode and switches are one such example. It basically runs two fans in series for low speed and then put s each on it s own 12v circuit for high speed. More importantly high fan speeds will accelerate drying.

The ac pressure switch іѕ a ѕаfеtу ѕwіtсh thаt monitors the рrеѕѕurе оf thе refrigerant on the high and low pressure sides on your air conditioning system. Because point 4 is only a concern when you turn on the air conditioner once the desired room temperature is reached the fan speed should be decreased to its lowest setting just enough to prevent the cooling elements from icing up. So you do often have two different ac refrigerant pressure switches on your car. If the low side sucks into a vacuum quickly i would suspect a low system.

A cheap easy to replace part that anyone can. On high temperature low humidity days running the fan at a higher speed will allow the air to cool down faster and reduces the air conditioner s ability to dehumidify. This is a fix for 2nd.