55
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.
If power failure occurs…
The unit returns automatically to start operation automatically with the same condition as just before
the failure when it occurs during operation and is recovered. It, however, is dangerous that the unit
starts unmanned operation automatically. We recommend to turn off the switch at power failure