KL8800A User Manual
Ⅴ. System Malfunction Warning
Fault
Indication
Root Cause Solutions
“ ”
Temperature sensor open or
short.
“ ”
Water flow sensor open or
short.
“ ”
Detected the water flow
sensor is over limitation.
1. Check whether the plug is loose or the cable is
damaged.
2. If plug and cable are OK, please replace the
main circuit board.
3. If it is not workable after replacing main board,
please replace the heater.
“ ”
Detected the temperature
inside the heater reaches 118
/ 48 or highe℉ ℃ r than it.
“ ”
Detected the temperature
inside the heater reaches
110 /43.5 or ℉ ℃ much higher.
1. Check whether ambient temperature is too
high.
2. Check whether the filter is blocked or just
replaced.
3. Check whether the metering valves and
circulating pump are normal.
“ ”
The water flow inside the
heater is possibly too low.
“ ”
It is sure that the volume of
water flow inside the heater is
not enough.
1. Check whether the filter is blocked or just
replaced.
2. Check whether the metering valves and
circulating pump are normal.
3. If the above loads are normal, please turn off
the power supply and wait for 15 seconds, then
turn on the power and reset system.
“ ”
Lack of water or the water
level not reach the target.
1. Please check whether the water level reach
the target level.
2. Please check whether all the cables related to
the water level probe are normal.
Other Operation Information
1. “ ”: Detected the it is going to frostbite status and the system running anti-freeze
function.
2. “ ”: The system is replenishing water, other functions could be operated normally.Ⅵ
3. “ ”: Replenishing water is paused, other functions could be operated normally.
4. “ ”: Mandatory drainage is running.
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