Troubleshooting - Yamato INE800 Manual

Symptom
Power will not turn on
even if the power
switch is turned ON.
Temperature will not
rise
Temperature will not
decrease
The heater will not turn
OFF even if the set
temperature
reached.
When power outage occurred
When power supply to the unit has recovered after having stopped operation from a power outage, the
unit will operate in either of two ways below depending on the setting you have selected.
● If recovery has been set, the unit will return to the status immediately before the power outage when
power supply recovers. When power outage occurs during operation, the unit will recover to the
operating status and continue operation.
● If recovery has not been set, the power key of the unit will shift to OFF status when the power supply
recovers. When power outage occurs during operation, the unit recovers to the stopped status and
aborts operation.
Reference：P31 Setting the recovery mode
Causes
● Imperfect power supply of the user side ● Assure power supply to be
● ELB error
● Power switch error
● Placement of too many samples
● Heater disconnection
● SSR error
● Temperature controller error
● Placement of too many samples
● Operating environment temperature
exceeds 35℃
● Condenser is clogged with dusts
● Too much frost on the evaporator
● Temperature sensor error
● Temperature controller error
● Relay error
● Imperfect power supply of the user side
● Refrigerator error
● SSR error
● Temperature controller error
is
8. When a trouble occurs
64

Troubleshooting

Solutions
AC100V±10％.
● Replace
● Replace
● Do not cover over 70％ of the
total shelf board area.
● Replace
● Replace
● Replace
● Do not cover over 70％ of the
total shelf board area.
● Operating
environmental
temperature:5～35℃
● Clean the condenser fins
● Defrost
● Replace
● Replace
● Replace
● Prepare appropriate power
supply
● Repair or replace
● Replace
● Replace