27.2. Drain pump control
1. Basic operation
During cooling mode, dry mode or defrost mode operation, the drain pump turns on when the compressor turns on. (The drain
pump turns on during freezing prevention control.)
•
• •
• When the compressor turns off, the drain pump will still continue its operation for 6 more minutes.
•
• •
• If the drain pump is running when operation stops or when the operating mode is changed, the drain pump will still continue
its operation for 6 more minutes.
2. Drain water problems
a. Starting
If it is detected that the float switch is off, the drain pump turns on for 5 minutes. If the float switch is still found to be off after
these 5 minutes have passed, or if the float switch is found to turn off twice during another 30 minutes period, a drain water
error will be generated.
b. Normal operation
After extension control (louvre initialization and pre-heating cancel), the indoor units and outdoor units stop running. LED2
on the indoor unit self-diagnosis LED panel will flash, and “CHECK” will appear on the wired remote control display.
The error code (F15-01) can be displayed by pressing the CHECK button.
When the wireless remote control is being used, the OPERATION indicator on the ray receiver will flash.
<If the float switch does not operate again after turning off>
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