31
Troubleshooting
Alarm Types and Troubleshooting Charts
■Safety device activates (Output error display)
Error display
Safety Device or Alarm Causes
Corrective Actions
C00
Condenser (filter) inspection warning
(Does not indicate abnormal
operation.)
・
Clean the condenser (filter) if it is dirty and then press the reset
switch. (Approx. 5 sec.)
E01
THR: Compressor overcurrent
relay(RKS400F1)
OLP: Compressor overload protector
(RKS400F1)
MP: Compressor motor
protector(RKS250F1-S)
・Bring the water and ambient temperatures to within specified
levels.
・Reduce the load.
・Please consult with your dealer.
・
Confirm whether or not there was a momentary loss of power
or voltage drop from the power source.
E02
PRS: High pressure switch
・Clean the condenser fins and filter.
・Bring the water and ambient temperatures to within specified
levels.
・Confirm there is no trouble with the fan motor.
E04
STS: Intake temperature sensor
・Confirm that the water is actually circulating.
・Bring the water temperature to within 5〜25 .
・
Ensure the operating circulation flow rate (circulation pump
flow rate) is not below 15 L/min.
・
Operate the product in an ambient temperature of 5
℃〜
40
℃
.
C07
Water temp high/low warning
(Parameter settings "F20" ~ "F23")
(1) If the water temperature does not fall to the set temperature:
Clean the condenser filter and/or reduce the ambient
temperature.
Reduce the load.
(2) If the water temperature drops too low:
In cases such as when the heat load is low, the temperature
may drop 1.5 below the set temperature.
There is no problem with the product as long as the
temperature rises up again to the set temperature.
・
The warning will automatically be canceled when the water
temperature returns to within the set temperature range.
C08
Compressor stop less than 3 minutes
・
The water volume in the water tank is larger than 20 L.
E09
Power supply open phase(RKS400F1)
・The R phase is open.
Check the power supply and fuse.
E10
Power supply reversed
phase(RKS400F1)
・The power supply R, S, and T lines don't match up.
・
Reverse 2 of the 3 lines of the power supply cable.
E11
Sensor disconnected
・Bring the water temperature to within 5〜25 .
・If the situation does not improve, please contact your dealer.
E12
The water temperature is 45 or
above, or the sensor is shorted.
E13
Memory error
･ Press the RESET switch.
･Cut off the power supply, and then reapply power.
If the problem persists, please consult with your dealer.
E14
There was a power outage or the
power supply was cut off while the
product was operating.
・
Press the RESET switch and then start product operation
again.
E15
Other error
・
Please consult with your dealer if the problem persists after
pressing the RESET switch.
E21
The refrigerant intake temperature is
-15 or lower, or the sensor is
disconnected.
・Bring the water and ambient temperatures to within specified
levels.
・Please consult with your dealer.
E22
Sensor short
・Bring the water and ambient temperatures to within specified
levels.
・Please consult with your dealer.
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