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8. TROUBLESHOOTING
Troubleshooting Guide
Troubleshooting table
Symptom Check Points
Display does not come up when
main power switch is turned on.
・ Is the power cable connected?
・ Is a power outage in progress?
・ Is power source voltage adequate?
Air does not purge.
Safety valve is activated.
・ Is the exhaust hose kinked or clogged?
・ Is the line clogged with debris?
Water does not drain.
Water does not drain in drying
process.
・ Is drain filter clogged?
Sterilization temperature does rise.
Pressure does not build.
・ Is the lid closed securely?
・ Is seal or flange damaged?
Pressure increases when solenoid
valve is open.
・ Is the chamber exhaust port clogged?
Temperature fluctuates during
operation.
・ Are there considerable changes in external temperature?
Steam discharges rapidly.
・ Is there water in the drain bottle?
・ Is exhaust hose positioned incorrectly or damaged?
Water leaks.
・ Is drain valve closed all the way?
・
Is the drain bottle overfilled?
Operation does not start from
stand-by.
・ Is drain bottle in position?
Loud noise during air purge. ・ Is the silencer installed correctly?
◆ For further technical assistance, contact Yamato Scientific at (800) 292-6286
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