We had a similar problem. The timer light would blink 3 times, pause,
then blink 3 times again, pause, and so on. The fan was blowing lots of
air out, but the air was not cold. The operation light was off.
The technician came and fixed it for free, since it's actually easy to
fix. He went to our circuit-breaker box, and cut power (from the box)
to the air conditioners for 30 seconds. Then, he restored power -
It's apparently because the air con goes into a "safety" mode when there's a power surge.
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the light flashing indicates there is a problem. you can try reseting the system by turning the power supply off and back on again 30 sec later, if the same thing happens you need to count the number of light flashers and that relates to a fault code
Here is the troubleshooting guide for your unit. Hope this helps.
TROUBLE SHOOTING GUIDE TROUBLESHOOTING Symptom Remedy 1. Remote does not turn on system - Check and replace remote batteries if the display fades while any button is activated or no display is present. - Point remote towards IR receiver during transmission. 2. System does not turn on, no green LED & no beep - Check wiring. (see "installation instruction") - Check modular cable to receiver. - Check diagnostic LED status in the upper unit control box. 3. System does not turn on even when receiver green LED is on. - Low or over voltage condition, check diagnostic LED status in the upper unit control box.
4. Fan runs but no cold air. - Evaporator temperature sensor reaches low limit, defrost mode. - Check diagnostic LED status in the upper unit control box. 5. System runs continuously in the cool mode - Remote was set for "I feel" mode and is left in a heated environment (sun etc.) 6. System runs continuously in the heat mode - Remote was set for "I feel" mode and is left in a cool environment
1. Diagnostic LED (green) (Note: Located on the control board in the upper unit control box.) a) The LED is on when the 12VDC is adequate and communications are present. b) The LED is flashing fast and steady when in the freeze mode. Evaporator has frozen and the freeze proctection switch is engaged. c) The LED is flashing slow and steady when the delay on break timer is activated. d) The LED is flashing 1 cycle on and off for one second with high or low 12VDC. Check the incoming 12VDC power for OK. e) The LED is flashing 2 cycles on and off for one second with a communication problem. Problem with the control board in the unit and the remote.