F1 & F2 settings explained (temperature sensor control)

F1 setting:The F1 setting determines how often your chiller will turn back on after it reaches the set temperature. If your F1 setting is set at 2°c, your chiller will cool to the set temperature, turn off, and start cooling again when the temperature has risen 2°c.

To set this setting follow the instructions below:

1. Press and hold the SET button for 3-5 seconds until the chiller shows the "F1" text on the display
2. Click the SET button again (do not hold it down this time)
3. A number should appear, we recommend setting this number to 1-2 (Celcius) if it isn't already.
4. lastly, click the RST button once to save the setting.In this case if you set the desired temperature at 5c, and the F1 temperature at 1°c, then your chiller will cool the water to 5°c, then turn off and only start up again when the water temperature rises up to 6°c (5+1°c). If you set the F1 setting to 2, then the chiller would start at 7°c (5+2).

F2 setting:
The F2 setting is mainly used for repair and should not be adjusted. But in case your chiller shows a different temperature on the display than the actual water is, then it could have been set incorrectly and cause the chiller to turn off earlier than it should.To set this setting follow the instructions below or click on this link to see instructions:
1. Press and hold the SET button for 3-5 seconds until the chiller shows the "F1" text on the display
2. Click the arrow UP button once, you will now see F2 on the display
3. Click the SET button again (do not hold it down this time)
4. A number should appear, this number should always be set at 0 (Celcius) if it isn't already.

CA (applies to some models)
Very similar to the above explaination but replacing F1 with CA and F2 with D
The D is to set the temperature difference . If you set D as 2 , and the cool temperature 6C. Means the chiller stop automatically when Temp gets to 8C, and it start to work again when 6+2=8C
(CA) is optional, you do not have to use it if the real water temperature is match to the LCD show.
For example :1: The real water temperature in the tub is 60°F(16°C), but the LCD shows 55°F(13°C). The differenceis 60°F-55°F=5°F/ 16°C-13°C=3°C, Pls Long press" SET" key for 4~6 seconds. after D appears, set "▲"+ button /" " - button to choose CA and then press "SET " key, press " ^"+ button , adjust to 1-2, therpress" RST" key to save.