6
三 、
CW-5000 Series Temperature Controller T-503 alarm (the alarm buzzer within
Temperature Controller goes with code display when alarming)
Remarks:
In alarming status, the alarm sound could be suspended by pressing any button, but the
alarm display remains until the alarm condition is eliminated.
Alarm code E1: ultrahigh room temperature
Under default state, press
▼
button will display room temperature; 6 seconds later will restore to
display water temperature.
Reason:
1
、
Ambient temperature higher than 40
℃
or the machine
’
s location not ventilated.
Solution
: The chiller placed in ventilated position, air inlet at least 30cm away from obstructions
(The dust gauze), and air outlet (The fan) at least 50 cm away.
2
、
The dust gauze is extremely dirty
Solution:
Clear the dust gauze regularly.
3
、
Dust accumulation heavily on the aluminum fin of condenser inside the chiller.
Solution
: Clear dust on condenser with compressor air regularly.
Alarm code E2: ultrahigh water temperature
Reason:
1
、
External issue
1.1
）
Ambient temperature higher than 40
℃
or the machine’s location not ventilated .
1.2
）
The dust gauze is extremely dirty.
1.3
）
Dust accumulation heavily on the aluminum fin of condenser inside the chiller.
1.4
）
The chillers heat overload (The load of heat higher than refrigeration capacity)
1.5
）
The chiller working voltage is lower than required (depending on the model: please refer to the
manual technical parameters)
2
、
Fan issue
3
、
Temperature controller issue
4
、
Compressor capacitor issue
5
、
Compressor Protector issue
6
、
Leakage Refrigerant
7
、
Refrigerant solenoid valve issue
8
、
Compressor issue
