
-14-
When you have the errors and troubles as mentioned below, we recommend you to follow the instructions
shown on each item. Contact dealers for repairs.
Items
Possible Causes of Troubles
Recommendable Measures
Power fails to switch on
Main power is not supplied to the furnace.
Make sure that power cord is
plugged or main fuse is blown or
not.
Control system is malfunctioning due to noise.
Repair is recommended if often
occur.
Computer Memory Loss
Repair is recommended.
Control system is abnormal.
Repair is recommended.
Thermocouple breakdown
Replace a thermocouple.
Abnormal heat rise
Repair is recommended.
Thermocouple is abnormal or heater breakdown
Repair is recommended.
Furnace Surface is
hazardous when touch
The earth line may not be grounded or insufficiently
grounded.
Sufficient grounding is necessary.
Firing of plenty ring molds will slow heat rise.
This is not abnormal
As temperature ruses high, heat rises slow.
This is not abnormal
Slow Heat Rise
Too much airflow.
Airflow is between 1~2L/min.
A low noise sounding
from the heater
When muffle heat is still low, a low noise will sound. This is not abnormal.
Muffle heater breakdown
Repair is recommended.
Temperature is not
rising.
Muffle heat up is slow.
Too much airflow.
Airflow is between 1~2L/min.
Catalyzing is of no effect.
Replacement of catalyst is
recommended.
Catalyst cleaner is not
working.
Sub fuse is damaged.
Remove the cause of trouble
and fuse replacement is
recommended.
Exhaust fume ventilator
is not working.
Sub fuse is damaged.
Remove the cause of trouble
and fuse replacement is
recommended.