Gree GUHD18ND3FO - Low Temperature Drying Function; Lock Function

U-Match Series DC Inverter Service Manual
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accumulated operating time increases 400hr. When it reaches 9, it means the accumulated
operating time is 5000hr;
(4) Heavy pollution: the former digit in timer zone shows 3 while the latter one shows 0, which
indicates the accumulated operating time is 100hr. Each time the latter digit increases 1, the
accumulated operating time increases 100hr. When it reaches 9, it means the accumulated
operating time is 1000hr;
The detailed pollution level and the corresponding time is as shown in Table 2-4-1 below:
Table 2-4-1 Pollution level and corresponding time
Pollution
level
Accumulated
operating time
(hour)
Pollution
level
Accumulated
operating time
(hour)
Pollution
level
Accumulated
operating time
(hour)
10
5500
20
1400
30
100
11
6000
21
1800
31
200
12
6500
22
2200
32
300
13
7000
23
2600
33
400
14
7500
24
3000
34
500
15
8000
25
3400
35
600
16
8500
26
3800
36
700
17
9000
27
4200
37
800
18
9500
28
4600
38
900
19
10000
29
5000
39
1000
If filter clean reminder function is turned on, the icon will be on.
(1) If cleaning time is not reached, no mater the setting is changed or not, the accumulated operating
time won‟t be recalculated when pressing Enter/Cancel button;
(2) If cleaning time is reached, in unit on or off state, will blink every 0.5s for reminder. Press
Function button to switch to icon and press ▲ and ▼ button to adjust the level. Then press
Enter/Cancel button, so the accumulated operating time won‟t be cleared (If the adjusted level is
higher than the present accumulated operating time, the icon won‟t blink any more; if the adjusted
level is lower than the present accumulated operating time, the icon will go on blinking).
(3) The only way to cancel filter clean reminder function is to press Function button to switch to filter
clean reminder function. The icon will blink and press ▲ or ▼ button to adjust timer zone to
display “00”. In this case, the accumulated operating time will be cleared.
4.2 Low Temperature Drying Function
Under dry mode and when set temperature is 16℃(61℉), continuously press ▼ button for twice and
then the set temperature will be 12℃ (54℉). In this case, the unit will enter low temperature drying
function.
When low temperature drying function is turned on, press ▲ button or Mode button to exit low
temperature drying function.
4.3 Lock Function
When unit is turned on normally or turned off, pressing ▲ and ▼ buttons at the same time for 5s will
turn on Lock function. LCD will display . Pressing ▲ and ▼ buttons at the same time for 5s to turn off
this function.
When Lock function is turned on, any other buttons won‟t respond when pressing. The function can be
memorized after power failure and then power recovery.