Yamato Scientific BB600 Low Constant Temperature Water Bath - Manual (Page 54)

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In the Event of Failure…
Trouble Shooting
Phenomenon Check point
The unit does not start to operate
although the leakage breaker is
turned on. • Check if the power cable is securely connected to the power
supply.
• Check if the power fails.
"ALARM” lamp lights on. • Check the error code on page 46.
The temperature does not drop. • Check if the set temperature is higher than the inside
temperature of the bath.
• Check if the condenser filter is dirty.
• Check if the condenser fin is contaminated.
• Check if the heat load of the circuration fluid has increased.
• Check if the ambient temperature has risen.
• Check if the area around the vent is blocked.
The refrigerator does not start to
operate. • The refrigerator is overloaded. Immediately turn off the leakage
breaker, and check the points described in "The temperature
does not drop" above. After a while, turn on the leakage breaker.
The circulating fluid does not
circulate. • Check if the circulating path is blocked or extremely constricted.
• Check if the specific gravity and viscosity of the circulating fluid
is proper.
• Check if the water bath filter is clogged.
"REFRIGERATO ERROR" lamp
lights on. • Check if the condenser filter is dirty.
• Check if the room temperature is high.
• Check if the temperature of the circulating fluid is 40°C or higher.
The displayed temperature does
not match the measured
temperature. • Check if the set value of calibration offset is other than "0". Set it
at "0".
• Check the set value according to P.23 "Calibration Offset
Function".
When a power failure occur
If the unit was deactivated in the middle of operation due to a power failure and is re-energized, the unit
automatically returns to the state just before the power failure and resumes operation. If the resumption
of operation by automatic recovery is inconvenient, turn off the leakage breaker.
In the case if the error other than listed above occurred, turn off the power switch and primary
power source immediately. Contact the shop of your purchase or nearest Yamato Scientific
Service Office.