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Safety Device and Error Code
Analysis of Common Failures
Failure
1.
Not
heating
after
power is on
2. Steam ejecting from
the safety valve after
temperature rises.
3. Safety valve failing to
work after exceeding the
parameters
4. The pressure gauge
failing to return to zero
under
non-pressure
condition
5. Steam leaking from
between the lid and the
pot after pressure rises
6.The temperature just
rise to 100℃
In the case of 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.
Cause
1. abnormal input power supply
2. heater being damaged
3. incorrect temperature adjustment
and time setting
1. the upper and lower handle
failing to reach proper positions
2. the safety lock pin being jammed
1. the safety valve being blocked
2. the safety valve unable to work
properly
1. the pressure gauge unable to
work properly
1. the seal being not properly
placed
2. the seal being damaged
1. The vent is stuck.
In the Event of Failure...
1. to supply the power according to
the nameplate
2. to replace the heater
3. to reset after switching off the
machine
1. to keep the upper and lower
handles contacting properly
2. to move the safety pin
1. to unclog the safety valve
2. to replace the safety valve with
qualified one
1. to replace the pressure gauge with
qualified one
1. to move the seal to a proper
position
2. to replace the seal with a qualified
one
1.to clean the vent and make it
smooth
2. If the first solution does not work,
please replace the vent with a
qualified one
19
Solution
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