Yamato Scientific DN410I Inert Oven - Manual (Page 80)

30
TROUBLESHOOTING
Problem Cause/Solution
No display of current hour in the
sub-display at the activation of the earth
leakage breaker. • Check if the power cable is firmly
connected to a receptacle.
• Check for power failure.
Temperature fluctuates during the
operation • Does ambient temperature fluctuate
violently?
• Are there too many samples in the
chamber?
• Are the samples too moist?
It takes too much time for temperature to
rise.
• Are there too many samples in the
chamber?