Problem Solving Your Air Con


Problem Solving Your Air Con

During summer, repairs to your cars air conditioning system rank highly on your to-do-list. Here are a few tips to help you diagnose faults in your vehicles A/C system, alongside information about when to change the compressor or renew or refill the air con system.


To start with, you have to get rid of the clutch in your A/C compressor if it is the problem. Turn your Air condition and fan to the maximum setting. Does the clutch engage? If it doesn’t, make use of a voltmeter to check whether the compressor is picking up voltage. If there’s voltage in it, the clutch might be bad, and needs to be changed as well as the compressor.

If there is no voltage running in it, there might not be adequate refrigerant within the system to put the low-pressure cut-off button that puts the compressor into work. If it appears likely that there isn’t sufficient refrigerant in the system, the common fault will be a spill. Use a UV A/C spill detector tool to check for spills, as well as the condenser and evaporator.

Then, use a manifold gauge to check the high and low pressure in the system. Are they all set according to what’s recommended inside the owner’s/repair manual? Likewise, check the following for a tight and secure fit:


  • Front seal of compressor
  • All system fittings
  • Hose manifolds on compressor
  • All system hose folds
  • Schrader valves
  • O-rings found on compressor pressure switches



If you have to change your A/C compressor, you will also be required to change your accumulator as well as dryer and expansion mechanism. You’ll also need to run a full flush of the system for maximum operation. Some vehicles require a change of the condenser to get rid of all debris and dirt from the A/C system.



While energising, there are two primary options:

  1. Top up with refrigerant
  2. eliminate/empty the system and recharge/refill the system

Even though each can be efficient, they are both short-term fixes if the A/C spills remain.



A top-up is less expensive, quicker and easier. In any case, any contamination in the refrigerant stays unless you go through the recharge procedure, which includes:

Eliminating any remaining refrigerant

Decontaminating the refrigerant using reprocessing equipment, recharging it into the vehicle and after that topping it off, as required

Also, the recharging enables you to be more accurate. When topping up refrigerant, you can determine the optimal amount (assume, 2.2 pounds) by looking in your owner’s manual. However, there is no specific approach to knowing how much refrigerant is currently in a vehicle, making topping off a gauge that can be used as an estimate. If the A/C system is incautiously overcharged, new cars generally have a component that makes the system break down in a hot condition. With a recharge, you can be accurate.



If just a little measure of refrigerant seems to be remaining, you’ll have to add up few more ounces. If the refrigerant’s pressure is less than 50 pounds per square inch then more refrigerant is required (Note that no less than 1 to 1.5 pounds of refrigerant are expected to test cooling capacities).

There’s the probability of having pinpoint-sized leaks that are extremely hard to discover, even with the best tools. These small holes cause moderate spillage. However, the A/C system may appear to lose its cooling capacities and purposes practically at once. If that is the situation, it’s feasible that your vehicle has a system that stops once refrigerant drops below a particular level.



If you choose to add refrigerant simply, A/C Pro is considerable. It contains a sealant that stops spills on hoses, gaskets and oil rings. Below are the basic guides to add the refrigerant, use it accurately:

Find the low-pressure joint

Use the Pro gauge of the A/C to evaluate the system’s pressure

If gauge is low, top-up by pulling the trigger on the item’s nozzle and monitor the pressure using the pressure gauge equipment, ensuring that you don’t overfill

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