So when do you notice your Air Condition is not working???, always the hottest day of the year, six hour ride ahead, and you had forgotten it didn’t work last year.
The following article should clear up some of the mystery when your Air Condition is tested at Corny’s.
What’s in there – Along with the refrigerant, a special oil circulates in the AC system. The oil lubricates air conditioning components, and keeps the seals resilient. Low refrigerant and lubricating oil means the air conditioning parts will wear out prematurely.
Air conditioning service starts with a visual inspection of the components for signs of damage or leaks. The compressor is driven by a belt from the engine, most often a serpentine belt, so it is inspected for cracks or wear.
The air conditioning compressor and other components are inspected for proper operation by testing pressure readings and temperature readings at the center vent inside the vehicle. If these readings are not at the correct readings for the day, ( temperature and humidity effect the readings) a leak test is performed. The air condition recharge machine evacuates all the freon out of the system. The AC machine draws the down till a 30 inch pound vacuum reading is seen. If the vacuum holds for apx. 30 minutes; the system is fully recharged and a detection dye is introduced.
A road test is now performed to insure the air conditioner is working properly. We measure center vent temperatures, on the Max Air Temperature setting, this will give us and you a reading we can compare to expected readings. We then schedule your ride to be examined one more time. -The purpose of introducing the leak detection dye
How often should your Air Condition be tested? You can do a simple test at home with a refrigerator thermometer. The thermometer must be able to read temperatures down to thirty degrees. Insert the end into the center vent, turn on Max Air, turn the fan speed up, and go for a ride. And no you can’t make colder air from cold air like sixty degrees. It takes heat out side to make cold air with you air condition system. We see temperatures as low as 40 degrees Fahrenheit on a hot humid day. Most cars will reach 45-50 degrees though.
One last note, some of the new cars may have a new type of Freon. ( very expensive ) In one of the training classes our techs attended. we were informed there is less Freon in the new systems. This leaves little room for a leak before you will notice a problem.
As Always “Service With A Smile”
All advice and information is free to try completely at owners risk.