|
Problem
|
Cause
|
Action
|
AL00
Controller CH?PBurn-out |
Dry bulb sensor
is disconnected. |
• Loose connection
on the terminal 25 or 26 in ?d?r-101-CPU.
• The dry bulb sensor is disconnected. |
• Turn off the
power switch.
• Check the input terminal ES-101-CPU |
AL01
High-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 of the upper deviation is too low. |
• Remove the
live load
.• Set the setting value 10°C
higher than previous setting.
• This error is reset when actual temperature get
back the limit. |
AL02
High-limit 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 lower limit absolute setting
is too low |
• Turn off the
power switch.
• Remove the live load.
• Check the high-limit setting value. |
AL03
Low-limit error |
Actual temperature
of the inside of the chamber is exceeding the lower
limit. |
• 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. |
AL06
Over-Heat error |
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. |
AL07
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. |
AL08
Ref. Error |
Cooling water
pressure become less than setting of water pressure
switch.
[Only water cooling type.]
All the refrigeration units have a problem. |
• The pump for
cooling water line does not work.
• The strainer filter has clogging.
• water leaking in the cooling water line.
• Each single alarm message has been shown. |
• Turn off the
power switch
• Check the cooling water pump.
• Check the water leakage in cooling water line.
• Cleaning up the strainer
filter. |
AL11
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 |
AL12
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 |
AL13?`16
No.1?`4
Ref. error |
• Temperature
switch of the compressor is activated
• High pressure switch is activated.
• Over load relay of the compressor is activated. |
• 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 strainer
filter. |
AL20
Controller CH2 Burn-out |
Wet bulb input
has miss-connection on the controller or wet bulb
sensor is disconnected. |
• The terminal
No. 31, 32, 33 and 34 at ES-101-CPU is disconnected.
• Disconnection of the sensor. |
• Turn off the
power switch. |
AL21
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. |
AL22
High-limit absolute error |
Actual humidity
of the inside of the chamber is exceeding the upper
limit absolute setting value |
• 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. |
AL27
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.
|
AL28
Humidifier water supply Error. |
Humidifier can
not supply the water 100% even after get the “humidifier
water supply Warning |
• Safety device
for DI water supply system such as RO water supply
is activated. |
• 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. |
AL29
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 |
AL30
Humidifier Water level float error |
Malfunction
of the float switch in the humidifier |
• Malfunction
of the float switch |
• Turn off the
power switch. |
AL42
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 |
AL45
Sequencer error |
Malfunction
of the sub-unit of the controller.
(This error occurs even the chamber is not running.) |
• Sub-unit has
CPU FAIL
• Disconnection of the cable on the sub unit. |
• Turn
off the main breaker. |
AL50
Scale in Humid.: AccumulationWarning. |
Temperature
switch is activated due to over heat. |
• There is many
scale in the humidifier. |
• Clean
up the humidifier. |
AL51
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. |
• Check the valve.
• Clean up the strainer filter.
• Check the water supply line.
This problem is automatically reset after humidifier
got enough water. |
AL52
Check humidifier operation. |
Humidifier ON-OFF
switch set to “CLEAN” during humidity operation. |
Forget to set
the Humidifier ON-OFF switch for “ON”When set this
switch to “ON” or press clear key in the display,
humidifier starts to supply the water |
Set the Humidifier
ON-OFF switch to “ON” after cleaning |
