|
Problem
|
Cause
|
Action
|
| Ref. Error. |
All the refrigeration units have
a problem. |
Each single alarm message has
been shown. |
• Do the corrective action for
each single alarm.
• Turn off the power switch to reset the alarm message. |
REF. #
Evaporize temperature Error.-1
#shows No. of refrigeration unit. NO. |
The evaporation temperature is
exceeding the limit. |
• Blockage in the refrigeration
circuit.
• Malfunction of Electric expansion valve.
• leaking of the refrigerant
• Many frost on the evaporator.
|
• Check the cooling water
line.
• Check the frost on the evaporator.
If there is many frost, please defrost it. |
REF. #
Evaporize temperature Error.-?Q
#shows No. of refrigeration unit. NO. |
The evaporation temperature is
out of the range during the non-frost operation. |
REF. #
Evaporize temperature Error.-?R
#shows No. of refrigeration unit. NO |
The evaporation temperature is
out of the range during the frost operation. |
REF. #
Surface temperature
#shows No. of refrigeration unit. NO |
The surface temperature rise up
and it activates thermal switch. |
• Malfunction of the compressor.
• Malfunction of the condenser.
• Leakage of the refrigerant.
• Super heat
• Abnormal phase.
|
• Turn off the power switch.
• Cooling down the compressor.
• Cleaning up the condenser filter |
REF. #
Over current error.
shows No. of refrigeration unit. NO |
The current for the refrigeration
is exceeding the limit and Over-load relay is activated.
|
• Malfunction of the compressor.
• Malfunction of the condenser.
• Leakage of the refrigerant.
• Super heat |
• Turn off the power switch.
• Cooling down the compressor.
• Cleaning up the condenser
filter |
REF. #
Over current error.
shows No. of refrigeration unit. NO |
The current for the refrigeration
is exceeding the limit and Over-load relay is activated. |
• Abnormal phase. |
• Turn off the power switch
• Check the cooling water.
• Cooling down the compressor.
• Cleaning up the condenser
filter |
| REF. #High pressure switch on.#shows
No. of refrigeration unit. NO |
Discharge pressure of the refrigeration
circuit is exceeding the limit. |
• Malfunction of the cooling tower.
• Condenser does not work due to dirt. |
• Turn off the power switch
• Check the cooling water.
• Cooling down the compressor.
• Cleaning up the condenser
filter |
| REF. #Condenser fan error(Air
cooling type only)#shows No. of refrigeration unit.
NO |
The current for the condenser
fan motor is exceeding the limit and Over-load relay
is activated. |
• Over load operation for motor.
• Dirt of the condenser fan. |
• Turn of the power switch.
• Check the condenser fan motor. |
| REF.Cooling water failure.(Only
water cooling type.) |
Cooling water pressure become
less than setting of water pressure switch. |
• The pump for cooling water line
does not work.
• The strainer filter has clogging.
• Water leaking in the cooling water line. |
• Turn off the power switch.
• Check the cooling water pump.
• Check the water leaking of the cooling water line.
• Cleaning up the strainer
filter |
| Humidifier Boil-Dry |
Inside temperature of the humidifier
rise up and exceeding and activate the temperature
switch. |
• Malfunction of the water circuit
of the humidifier.
• There is many scale in the humidifier. |
• Turn off the power switch.
• Clean up the humidifier. |
| Scale in Humid.: Accumulation
Warning. |
Temperature switch is activated
due to over heat. |
• There is many scale in the humidifier. |
• Clean
up the humidifier. |
| Scale in Humid.: Accumulation
Error |
Temperature switch is activated
continuously 72hours. |
• There is many scale in the humidifier. |
• Clean
up the humidifier. |
| Humidifier Drain error. |
Humidifier cannot drain the humidifier
water. |
• Malfunction of the drain water
pump.
• Clogging of the drain line.
• Malfunction of the float switch. |
• Clean
up the humidifier. |
| Humidifier water supply Warning. |
Humidifier can not supply the
water within limit. |
• Water supply valve
is closed.
• Strainer filter is clogged.
• Water leaking
• Water supply pressure is reducing.
• Malfunction of the float switch for humidifier.
• Safety device for DI water supply system such as
RO water supplyis activated. |
• Check the valve.
• Clean up the strainer filter.
• Check the water supply line.
This problem is automatically reset after humidifier
got enough water. |
| Humidifier water supply
Error. |
Humidifier can not supply
the water 100% even after get the ?ghumidifier water
supply Warning.?h |
• Turn off the power
switch.
• Check the water valve.
• Clean up the strainer filter.
• Check the water supply line.
• Check the safety device of DI water supply unit. |
| Humidifier Water level float error |
Malfunction of the float switch
in the humidifier. |
• Malfunction of the float switch. |
• Turn off the power switch. |
| Humidifier error. |
Over current protector for humidifier
is activated due to over current |
• Humidifier electric circuit makes
short circuit or over current. |
• Turn off
the main breaker.
• Reset the breaker for the
humidifier. |
| Check humidifier operation. |
Humidifier ON-OFF switch set to
?gCLEAN?h during humidity operation. |
Forget to set the Humidifier ON-OFF
switch for ?gON?hWhen set this switch to ?gON?h or press
clear key in the display, humidifier starts to supply
the water. |
Set the Humidifier
ON-OFF switch to ?gON?h after cleaning
up. |
| Air circulator Error. |
The current of the air circulation
motor is exceeding the limit and over load relay
is activated. |
• Over load operation for the air
circulation motor. |
• Turn off the power switch.
• Stop the operation and cooling down the motor. |
| Heater error |
The over current protector is
activated due to over current. |
• The heater makes short circuit
or over current. |
• Turn off
the main breaker.
• Reset the breaker for the
heater to reset the error |
| Output circuit error. |
The over current protector is
activated due to over current. |
• The controlling circuit makes
short circuit or over current. |
• Turn off
the main breaker.
• Reset the breaker for the
humidifier to reset error. |
| Test system Temp. Over-Heat. |
Actual temperature of the inside
of the chamber is exceeding the setting value in
the over heat protector. |
• There is too much live load.
• The setting value of the over heat protector is
too low. |
• Turn off the power switch.
• Remove live load.
• Check the setting in
the over heat protector. |
| Air Con. Local overheating |
The temperature switch of the
air conditioning unit is activated due to high temperature. |
• There is too much live load.
• Malfunction of the heater.
• Malfunction of the motor.
• Turn off the main breaker after High temperature
operation. |
• Turn off the power switch.
• Blow the fresh air into the air conditioning unit
to pull down the temperature below 50°C?B |
| Test RM T. H-limit Absolute error |
Actual temperature of the inside
of the chamber is exceeding the upper limit absolute
setting value |
• There is too much live load.
• The setting value of upper limit absolute setting
is too low. |
• Turn off the power switch.
• Remove the live load.
• Check the setting value of upper limit absolute
setting |
| Test RM H. H-limit Absolute warning |
Actual humidity of the inside
of the chamber is exceeding the upper limit absolute
setting value |
• Actual humidity exceeds the limit
when move the next steps in the program operation.
• The setting value of upper limit absolute setting
is too low. |
• Check the setting value of upper
limit absolute setting
• This error is reset when actual humidity get back
the limit. |
| Test RM T. L-limit AbsoluteError. |
Actual temperature of the inside
of the chamber is exceeding the lower limit absolute
setting value |
• Too much cooling power due to
wrong setting in the Ref.
• test sample pull down the temperature.
• The setting of the lower limit is too high. |
• Turn off the power switch.
• Remove the test sample.
• Check the setting of the lower limit.
• This error is reset when actual humidity get back
the limit. |
| Test RM H. L-limit Absolute warning |
Actual humidity of the inside
of the chamber is exceeding the lower limit absolute
setting value |
• Actual humidity exceeds the limit
when move the next steps in the program operation.
• The setting value of lower limit absolute setting
is too low. |
• Check the setting value of lower
limit absolute setting
• This error is reset when actual humidity get back
the limit. |
| Test RM T. H-limit Deviation warning |
Actual temperature of the inside
of the chamber is exceeding the upper limit deviation
setting value |
• There is too much live load.
• The setting value of lower limit deviation setting
is too low |
• Remove the live load.
• Check the setting value of upper limit deviation.(Set
the setting value 10°C
higher than previous setting.
• This error is reset when actual humidity get back
the limit. |
Controller " ch1 6 " burn-out
error |
Analog input Ch1Ch6
on the controller is disconnected. |
• Disconnection on the controller
unit. (EZ-PCU)
• Disconnection of the Sensor. |
• Turn off the power switch.
• Please contact with local agent or ESPEC ENGINEERING
CORP. |
