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Vf air blowing cool air not cold anymore.

benny005

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Hey guys I've got a 2014 vf sv6 and air con was going great after replacing high pressure hose and valves but now it's blowing cool to warm air thru all vents. Both high and low lines are hot and warm to touch a d system is still full of gas. Anyone have any ideas as to wat it is I was thinking either tx valve o rhvac module.
 

Skylarking

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When the system is operating, the high pressure pipe coming out of the ac compressor should be rather hot while the low pressure pipe coming out of the evaporator should be rather cold. In fact on a humid day, the low pressure pipe coming out of he evaporator may start to form condensation on that pipework.

If the low pressure pipe is warm to the touch, then something is wrong. The question then becomes who evacuated the system, how long vacuum was held and who recharged it?

If the pipes are hot and cold and the system was charged with the correct amount of gas and operating pressures are correct, then it may be the hvac isn’t directing the airflow correctly because the mixing (blending) door is damaged or the motor operating it is faulty.

May be a hvac calibration/reset might sort out blend door motor issues and it’s described in the thread below


PS: VE has TX Valve but not sure if VF uses same or uses an orifice tube… same same but different…
 
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