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In the Event of Failure…
Safety Device and Error Code
Analysis of Common Failures
Failure Cause
Solution
1. Not heating after
power is on
1. abnormal input power supply
2. heater being damaged
3. incorrect temperature adjustment
and time setting
1. to supply the power according to
the nameplate
2. to replace the heater
3. to reset after switching off the
machine
2. Steam ejecting from
the safety valve after
temperature rises.
1. the upper and lower handle
failing to reach proper positions
2. the safety lock pin being jammed
1. to keep the upper and lower
handles contacting properly
2. to move the safety pin
3. Safety valve failing to
work after exceeding the
parameters
1. the safety valve being blocked
2. the safety valve unable to work
properly
1. to unclog the safety valve
2. to replace the safety valve with
qualified one
4. The pressure gauge
failing to return to zero
under non-pressure
condition
1. the pressure gauge unable to
work properly
1. to replace the pressure gauge with
qualified one
5. Steam leaking from
between the lid and the
pot after pressure rises
1. the seal being not properly
placed
2. the seal being damaged
1. to move the seal to a proper
position
2. to replace the seal with a qualified
one
In the case if the error other than listed above occurred, turn off the power switch and primary power
source immediately. Contact the shop of your purchase or nearest Yamato Scientific Service Office.
