Sleep Mode; Defrost Operation - Gree GWH18AC-D3DNA1B Service Manual

Timer OFF only
Timer OFF Indicator
This function will allow the unit to stop automatically at the set
time. The timer can be set while the unit is on or while it is off.
To set the "TIMER OFF" function, perform the following:
1. Push the "T- -OFF" button once.
2. The "TIMER" indicator will appear on the remote control
with "OFF" flashing.
3. Push the "TIME - -" or "TIME +" button until the desired
ON time is reached.
NOTE: Pressing the "TIME - -" or "TIME +" will decrease or
increase the time in 1 minute increments.
Pressing the "TIME - -" or "TIME +" continuously, will
decrease or increase the time in 10 minute increments.
4. Push the "T- -OFF" button again, the "OFF" icon will stop
blinking and the time at which the unit will turn off is set.
The "T- -OFF" time will be stored in memory indefinitely until is
is cancelled by pushing the the "CANCEL" button or the batteries
are replaced in the remote control.
If the unit is running and the "T- -OFF" set time is reached, the unit
will turn off and the operation indicator light on the front panel will
turn red. The display on the remote control will remain the same
as when the unit was running. To turn the unit on again, push the
"ON/OFF" button twice. The operation indicator light on the front
panel will turn green.
Timer ON and Timer OFF
Timer Indicator
Use both functions as described in "TIMER ON" and "TIMER
OFF" sections to program the unit to turn on and shut off at
specified times. Times will be stored in memory until cancelled
by user or the remote control batteries are replaced.

Sleep Mode

This mode is used to conserve energy and can be used when the
unit is in the COOL, HEAT or AUTO mode only.
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Time Delay
If the On/Off button is pressed too soon after a stop, the
compressor will not start for 3 minutes due to the inherent
protection against frequent compressor cycling. The unit will only
emit an audible beep when the signals are received correctly.
Heating Features
If the unit is in the heating mode, there will be a delay when the
fan starts. The fan will start only after the coil is warmed up to
prevent cold blow.

Defrost Operation

In heating mode, if the outdoor coil is frosted, the indoor fan and
outdoor fan will turn off while system removes the frost on the
outdoor coil. "H1" will be displayed on the display panel on the
front cover of the unit.
The system will automatically revert to normal operation when
frost is removed from the outdoor unit, and "H1" will disappear.
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Auto Start
If the power fails while the unit is operating, the unit stores the
operating condition, and it will start operation automatically under
those conditions when the power is restored.
16
Cool Mode
- - Push the SLEEP button. The SLEEP display will appear on
the remote control.
- - After 1 hour the set point will be raised by 1.8_F (1_C).
- - After another hour, the set point will be raised by another
1.8_F (1_C) and the fan will run in low speed.
- - The SLEEP mode will be cancelled when the SLEEP button
is pushed again.
Heat Mode
- - Same as cooling mode but set points will be lowered by
1.8_F (1_C) and the HEAT icon will disappear from the
display panel.
Sleep Mode Icon
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