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• Once abnormality has occurred during operation, the unit
will stop its operation, and Timer LEDs blink.
• Although Timer LED goes off when power supply is turned
off, if the unit is operated under a breakdown condition, the
LED will light up again.
• In operation after breakdown repair, the Timer LED will no
more blink. The last error code (abnormality) will be stored in
• To make a diagnosis:
1. Timer LED start to blink and the unit automatically
stops the operation.
2. Press the CHECK button on the remote controller
continuously for 5 seconds.
3. "- -" will be displayed on the remote controller display.
Note: Display only for "- -". (No transmitting signal, no
receiving sound and no Power LED blinking.)
4. Press the "TIMER" or button on the remote
controller. The code "H00" (no abnormality) will be
displayed and signal will be transmitted to the main
5. Every press of the button (up or down) will increase
abnormality numbers and transmit abnormality code
signal to the main unit.
6. When the latest abnormality code on the main unit
and code transmitted from the remote controller are
matched, power LED will light up for 30 seconds and
a beep sound (continuously for 4 seconds) will be
heard. If no codes are matched, power LED will light
up for 0.5 seconds and no sound will be heard.
7. The breakdown diagnosis mode will be canceled by
pressing the CHECK button continuously for 5 sec-
onds or without any operation the remote control for
8. The LED will be off if the unit is turned off or the
RESET button on the main unit is pressed.
When you have the error code, we can work out what to do next.
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.
This happen when you use the inverter for a long time and start getting old and over heat...try to power down the units and keep it for about an hour and then starft them again and try to install a small fan to keep them cool.