Chapter 7 Troubleshooting
89
7.2 Other Troubles
DANGER
•
ELECTRIC SHOCK! Before working on the power
circuits on the primary side of the main power
switch (leakage breaker), shut OFF primary power
supply and check the line is dead. Also, take
measures to prevent accidental charging.
Working with primary power supply ON runs the risk of electric
shock.
•
Shut OFF power from the main power switch
(leakage breaker) BEFORE detaching the water
circuit (heat exhaust) compartment panel.
This section explains troubles undetected in cabinet self-checks and
cases of misoperation which are easily mistaken as trouble. If the trouble
cannot be remedied after taking the prescribed action, contact the place
of purchase or ESPEC CORP.
Table 7.2 Other troubles
Trouble Cause Remedial
action
The instrumentation
panel does not light up
after pressing the
POWER key.
Primary power supply is OFF.
Activate the primary power supply.
The display goes out
all of sudden or the
displayed information
is strange.
System trouble or internal board
trouble
Switch the main power switch OFF
and ON. If the same trouble
reoccurs, call for service.
Something is caught in the door.
Remove the obstruction.
Frost has formed and hardened on
the door packing.
Defrost the cabinet. See "7.3 User
Practical Servicing".
The door is hard to
close.
Internal pressure is high because
the cabinet is hot and highly humid
on the inside.
There is nothing wrong with the
equipment. Proceed as planned.
Internal pressure is lower than room
pressure.
There is nothing wrong with the
equipment. Proceed as planned.
The door is hard to
open.
Frost has formed and hardened on
the packing.
Defrost the cabinet. See "7.3 User
Practical Servicing".
Outside air has infiltrated through
the cable port.
Cover the cable port with the cap or
rubber plug.
During operation below
zero, icicles 5 cm or
longer formed on the
internal drain port, or
the test area is covered
in frost. (Not applicable
to LH or LHL cabinets)
Door packing is not properly sealing
the door and frame, or packing has
deteriorated.
Call for service.
Cont.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
