FILTER Key - On-off key for the filtration system. Press this key, and the filter pump will start working and the red indica
tor lamp will be on. Press again the pump will stop working and the lamp will be off.
When the FILTER PUMP has worked for 168 hours, the letters ‘FC’ will appear on the display screen,
accompanied by a warning tone. At that time, the indicator lamp for the key of filtration system will be on
but the filter pump will actually not work. The indicator lamp for the key of heating system
will be off and the heating system will not work. Only by pressing the key ‘FILTER’ again can the indicator
lamp for the key of filtration system be off. At that time, the letters ‘FC’ on the display screen will
disappear and so will the warning tone. Actual water temperature will be displayed. All keys return to nor
mal working status. ‘FC’ and the warning tone are to remind the user to clean or replace the filter element.
BUBBLE Key On-off key for the jet system. Press this key and the air pump will start working and the red indicator lamp
will be on. Press again and the jet system will stop working and the lamp will be off. The jet system will
stop automatically after working for 20 minutes. If there is still need, you have to wait for 10 minutes
and then press the “bubble” key again. During the time period which the bubbling function has been star
ted and worked for 15 minutes, bubbling can be stopped or started. During the time period that the jets
have been worked for 15 minutes and stopped, bubbling can be stopped but not be started. The re-star
ting of jets should wait for 10 minutes. When the jets have been on for 20 minutes and stopped, the functi
on cannot be started again within 10 minutes.
HEATER Key On-off key for the heating system. Press this key the heating system will start
working and the red light will be turn on. Press again and the heating system will stop working and the
light will be turn off. When you press this key, "heather", the heating system is operating in the automatic
mode, and the red light is turned on. At the same time, the signal of the filter and the filter pump is turned
on starts to operate. This is normal as the system designed.When the preset temperature has been rea
ched, the heating system will stop working, but the heating indicator light will not turn off. The filter pump
will continues to operate, the red light is on also. When the water temperature falls to 2 below the preset
temperature, the heating system will start working automatically
Page 11/26 17.12.20
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