Yamato Scientific IQ821 Low Temperature Incubators - Manual (Page 40)

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In the Event of Failure…
Trouble Shooting
Problem Possible Cause Solution
Earth leakage breaker failure Replace the part.
Power switch failure Replace the part.
The device does not start
when turning on the power
switch.
Power source failure
Connect to the appropriate
power source
Heater disconnection Replace the part.
SSR failure Replace the part. Temperature does not rise.
Temperature controller failure Replace the part.
Temperature sensor failure Replace the part.
Temperature controller failure Replace the part.
Clogging of condenser with dust Clean the fin on condenser
Much frost on evaporator Defrost
Relay failure Replace the part.
Power source failure
Connect to the appropriate
power source
Temperature does not fall.
Refrigerator failure Repair or replace the part.
SSR failure Replace the part. Heater does not stop working
when the temperature reaches
setting value.
Temperature controller failure Replace the part.
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.