Trouble Shooting - Yamato IN604W Instruction Manual

Trouble Shooting

Problem
The device does not start
when turning on the power
switch.
Temperature does not rise.
Temperature does not fall.
Heater does not stop working
when the temperature reaches
setting value.
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. When I used a backup power supply
for blackout return, but a blackout occurred for need in less than 30 minutes more than 30 minutes as
for the charge time of the backup power supply since I turned on electricity in a device, there is the
thing that a blackout does not return temporarily. The blackout return function operates normally after
it was charged a backup power supply enough because I am not abnormal.
Possible Cause
Earth leakage breaker failure
Power switch failure
Power source failure
Heater disconnection
SSR failure
Temperature controller failure
Temperature sensor failure
Temperature controller failure
Clogging of condenser with dust
Much frost on evaporator
Relay failure
Power source failure
Refrigerator failure
SSR failure
Temperature controller failure
56
In the Event of Failure...
Solution
Replace the part.
Replace the part.
Connect to the appropriate
power source
Replace the part.
Replace the part.
Replace the part.
Replace the part.
Replace the part.
Clean the fin on condenser
Defrost
Replace the part.
Connect to the appropriate
power source
Repair or replace the part.
Replace the part.
Replace the part.