Cause AC is not cold and how to fix it

How to cope with AC not cold but normal flame

AC all operating normally. But the cool or cold air can not be felt, just gusts of wind coming from the blower (indoor). This case can occur for several reasons as follows.

Remote control settings are not appropriate.

Try to check (Mode) contained in the remote control, the setting is appropriate or not. To set out a gust of cool air or cold, should be in a settings mode [COOL] or [AUTO]. AC settings on the mode [FAN] would not let out the cold, but the blower’s working.

The compressor does not work.

In this case that often occurs is outdoor fans are spinning, but the compressor does not work. To determine whether the compressors work or can not be done in two ways, namely checking the electric current passing through the compressor and refrigerant pressure within the pipe. To check the current passing through the compressor, use the plier’s ampere, then flip one of the wires that go into the compressor (can be positive or negative). Subsequently, adjust the measurement results with a standard electric current on the AC unit.

Once you know the compressor does not work, perform the following steps to resolve it or you can visit ac repair Phoenix.


  • Check the main power supply voltage (PLN). If the power supply voltage (voltage) is very low, immediately report to the PLN officers to improvement.
  • Check the compressor capacitors, still good or has been damaged. If damaged, replace with a new capacitor size.
  • Check the external part of the motor overload protector, still functioning or not. If damaged, replace with a similar component.
  • Check the wires and electrical sockets on the outdoor are there any part damaged wires or sockets. The solution, fix the cable connection and the electrical outlet.
  • Check outdoor fan rotation, if the rotation is slow or weak, weak means the fan capacitor. Several replaces the capacitor.
  • Check the fan rotation by hand, smoothly or not. If not, then the outdoor fan bearing jammed or ‘drag’. Immediately replace the fan bearing. If not addressed, the compressor will heat faster because they do not get the maximum cooling that will decide the current overload to a compressor .
  • If the above condition is normal. Lastly, check the condition of the compressor. If damaged, immediately replace the compressor.

The compressor works, but the outdoor fan is not spinning.

To fix this, do the following.

  • Check the fan motor bearing, rotating smoothly or not. To check, turn off or unplug the AC first major electrical outlet. Then, open the protective outdoor. Turn the fan leaves by hand. Note turnover. If the bearing jammed or frequent cause generic sound, you should immediately replace the fan motor bearings.
  • Check the condition of the outdoor fan capacitor, still good or damaged. If the capacitor is damaged or worn out, replace with a new capacitor in accordance with the specification of capacitors old.
  • If the above two steps have been done, the last possibility is a problem on the inside of the fan motor, such as coils or cause the fire. The solution, replace with a new motor or repair by rolling over the fan motor windings. To roll up the motor winding should be done by professionals (tradesmen roll dynamo).

Outdoor fan and compressor do not work

To resolve this problem, do the following.

  • To check, wait a moment. Typically, outdoor fan and compressor take about 3 minutes for all operating when the indoor is turned on. It is intended to protect the compressor and air conditioning system that is not easy.
  • Check the thermistor and relay contained in the electronic PCB. If damaged, immediately replace the component and a thermistor relay. Therefore, when both of these components is problematic, the electrical current will not flow into the outdoor part so that the compressor and outdoor fan will not work.
  • Check your remote control settings, if the selected mode is appropriate or not. Outdoor fan and the compressor will illuminate when the remote settings in a state mode [COOL] or [AUTO].
  • Check the power cord connecting the indoor and outdoor, if there are broken, loose, or slack. If there is, immediately correct cable connection.

Normal AC operation, but less cold.

Cases like this often caused by some of the following.

Refrigerator reduced pressure.

To check, perform the following steps.

  • Check the electric current and the refrigerant pressure using pliers ampere, whether the electric current on the compressor and refrigerant pressure system in accordance with prescribed standards or not. Typically, the standard electric current can be seen on the nameplate AC unit.
  • Or, do the checking system using charging pressure manifold, if the pressure has been appropriate or not.