Check where the hoses are crimped onto the fittings.When checking out an air conditioning issue, it's easiest to begin at the compressor.Leaks are the most common problem associated with the air conditioning system.Check the front seal and the o-rings sealing the pressure switches on the back of some compressors. .Check where the evaporator drains condensation with UV light.If the clutch is not engaging, use a voltmeter to check for voltage getting to the compressor.Check to see that the cooling fans on the condenser or radiator are running when the air conditioning is on.If there is voltage - the clutch may be bad.With the engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor.If your vehicle's air conditioning system has lost its cool factor, you need to do something.Check for pin holes in the condenser.Check the China R410 Refrigerant Tubes suppliers cabin air filter to ensure that it is not clogged.If the air conditioning is set to max cool and fans on high, but is only blowing moderately cool air.Using a UV A/C Leak Detection Kit is the easiest way to find a leak. The following are easy step by step guide on how to troubleshoot and fix an automotive air conditioner.Check around all fittings to verify that they are all secure.Check the Schrader Valves.Check hose manifolds on the compressor.If there is no voltage - a cycling switch may be bad, a fuse may be blown and the system may not have enough refrigerant pressure to trip the low pressure cutoff switch that cycles the compressor. If pressure is low, then there may be a leak.Look for any restrictions like leaves, bugs or dirt that would keep air from passing over the condenser

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