Duct damper is closed.
Low pressure switch air conditioner.
Air conditioning pressure switches are designed to protect the a c system against pressure that is too high or too low.
Air pressure switch 120 150 psi pressure switch 1 4 18 npt air compressor pressure switch pressure controller high pressure switch 120v ac pressure switch dc 24v 12v pressure switch 13 90 13.
R p m of fan coil blower too low.
Only leaking air conditioning systems have low refrigerant levels.
There are both high pressure and low pressure switches.
So you do often have two different ac refrigerant pressure switches on your car.
Ambient temperature too low.
The low pressure switch turns the system off when the pressure is too low to prevent damage to the compressor.
It monitors the pressure of the refrigerant on its respective side of the system.
Low ac pressure will prevent the relay from sending power to the ac compressor clutch.
If you are suffering from problems like an intermittent response from the ac unit when you turn it on a lack of cooling or an outright failure of the system then the problem.
One on the low pressure side before the ac compressor and one on the high pressure side.
Like all parts of your vehicle it has a limited lifespan.
There is a high side pressure switch and low side pressure switch and they both serve to monitor the system for pressure faults that can.
Jump the low pressure switch only to test the circuit.
Low pressure switch cuts off air conditioner troubleshooting.
An automotive air conditioner s pressure switch cycles the vehicle s compressor on and off when the refrigerant pressure falls below an acceptable level.
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.
This protects the compressor from damage.
If you jump the low pressure switch with the engine running do it only for a few seconds.
Do not jump the low pressure switch to operate the compressor non stop so you can add refrigerant.
However remember the important role in managing the pressure of the refrigerant as it works through the ac system that the ac pressure switches play.
The a c pressure switch is mounted on both the high and low sides of your a c.
This means that if one or even worse both switches are failing then the ac system will be receiving incorrect pressure readings from either the high or low side of the system.
Fan motor belt loose or slip.
Duct resistance too high.
Incorrect pressure can damage the compressor hoses and other a c system components.
Fan coil motor is rotating in the reverse direction.
This switch is crucial for proper a c performance.
Temperature setting of thermostat too low.
When the pressure in your a c rises or lowers too much this switch turns off the compressor to protect it and the rest of the system from damage.
Some vehicles are equipped with just a high pressure switch while others have both.
