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Vernitron Troubleshooting







How To Troubleshoot The Vernitron Autoclave



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Problem Cause Solution
Water Will Not Enter Chamber When Fill-Vent Switch Is Pressed
  1. Insufficient Water In Reservoir
  2. Unit Unplugged, or Outlet Not Live
  3. Defective Fill/Vent Switch
  4. Defective Solenoid
  5. Tubing Clogged
  1. Fill Water Reservoir To "MAX" Line
  2. Make Sure Unit Is Plugged In & Reset Circuit Breaker For Outlet
  3. Replace Fill/Vent Switch
  4. Replace Defective Solenoid
  5. Clear Tubing Of Debris Causing Blockage
Water Continues To Enter Chamber After Fill/Vent Switch Is Released
  1. Defective Fill/Vent Switch
  2. Defective Solenoid
  3. Debris On Solenoid Seat
  1. Replace Fill/Vent Switch
  2. Replace Solenoid
  3. Remove Solenoid & Clean Seating Surfaces To Remove Debris
Water Enters Chamber Slowly
  1. Water In Reservoir Tank Is Low
  2. Tubing Clogged
  3. Solenoid Clogged
  1. Fill Water Reservoir To "MAX" Line
  2. Clean Tubing To Remove Debris
  3. Clean Solenoid To Remove Debris
Cycle ON Indicator Does Not Light
  1. Defective Light
  2. Autoclave Not Plugged In Or Circuit Breaker Tripped
  3. Low Water Cut-Off Switch Not Reset
  4. Low Water Cut Off Switch Defective
  5. Defective MODE Selector Switch
  1. Replace Light
  2. Make Sure Unit Is Plugged In & Reset Circuit Breaker For Outlet
  3. Try Resetting Low Water Cut-Off Switch
  4. Replace Low Water Cut-Off Switch
  5. Replace Mode Selector Switch
Heat On Indicator Does Not Light
  1. Defective Light
  2. Autoclave Not Plugged In Or Circuit Breaker Tripped
  3. Low Water Cut-Off Switch Not Reset
  4. Low Water Cut Off Switch Defective
  5. Defective Mode Selector Switch
  6. Timer Is In "OFF" position
  7. Defective Timer
  8. Defective TEMPERATURE/PRESSURE Control
  1. Replace Light
  2. Make Sure Autoclave Is Plugged In & Reset Circuit Breaker
  3. Try Resetting Low Water Cut-Off Switch
  4. Replace Defective Low Water Cut-Off Switch
  5. Replace Mode Selector Switch
  6. Move Timer Past 10 Min Mark & Re-try Cycle
  7. Replace Timer
  8. Replace TEMPERATURE/PRESSURE Control
Heating Element Does Not Heat When Mode Selector Switch Is In "STERILIZE" Position
  1. Defective Heating Elements
  2. Unit Not Plugged In Or Circuit breaker Tripped
  3. Low Water Cut-Off Switch Not Reset
  4. Low Water Cut-Off Switch Defective
  5. Defective Mode Selector Switch
  6. Timer Is In "OFF" Position
  7. Timer Is Defective
  1. Replace Defective Heating Elements
  2. Make Sure Autoclave Is Plugged In & Reset Circuit Breaker
  3. Try Resetting Low Water Cut-Off Switch
  4. Replace Defective Low Water Cut-Off Switch
  5. Replace Mode Selector Switch
  6. Move Timer Past 10 Min Mark & Re-try Cycle
  7. Replace Timer
Heating Element Does Not Heat When Mode Selector Is In "DRY" Position
  1. Defective Heating Elements
  2. Unit Not Plugged In Or Circuit breaker Tripped
  3. Low Water Cut-Off Switch Not Reset
  4. Low Water Cut-Off Switch Defective
  5. Defective Mode Selector Switch
  6. Timer Is In "OFF" Position
  7. Timer Is Defective
  1. Replace Defective Heating Elements
  2. Make Sure Autoclave Is Plugged In & Reset Circuit Breaker
  3. Try Resetting Low Water Cut-Off Switch
  4. Replace Defective Low Water Cut-Off Switch
  5. Replace Mode Selector Switch
  6. Move Timer Past 10 Min Mark & Re-try Cycle
  7. Replace Timer
Sterilizer Does Not Come Up To Desired Temperature
  1. Temperature Regulator Not Properly Adjusted
  2. Defective Steam Trap
  3. Defective Safety Valve
  4. Defective Thermometer
  5. Defective Heating Elements
  6. Unit Not Plugged In Or Circuit breaker Tripped
  7. Low Water Cut-Off Switch Not Reset
  8. Low Water Cut-Off Switch Defective
  9. Defective Mode Selector Switch
  10. Timer Is In "OFF" Position
  11. Timer Is Defective
  1. Adjust Temperature Regulator
  2. Replace Defective Steam Trap
  3. Replace Defective Safety Valve
  4. Replace Defective Thermometer
  5. Replace Defective Heating Elements
  6. Make Sure Autoclave Is Plugged In & Reset Circuit Breaker
  7. Try Resetting Low Water Cut-Off Switch
  8. Replace Defective Low Water Cut-Off Switch
  9. Replace Mode Selector Switch
  10. Move Timer Past 10 Min Mark & Re-try Cycle
  11. Replace Timer
Steam Leaks Around Door During Cycle
  1. Door Not Fully Closed
  2. Worn Door Gasket
  3. Insufficient Door Tension
  1. Make Sure Door is Fully Closed
  2. Replace Door Gasket
  3. Tighten Locking Hub
Sterilizer Does Not Shut Off Or Complete Cycle
  1. Defective Timer
  2. Low Water Cut-Off Switch Open (Indicating A Short In Switch)
  1. Replace Timer
  2. Replace Defective Low Water Cut-Off Switch
Buzzer Does Not Sound At The End Of The "STERILZE" Or "DRY" Cycle
  1. Defective Buzzer
  2. Defective Time Delay Relay
  3. Defective Timer
  1. Replace Defective Buzzer
  2. Replace Defective Time Delay Relay
  3. Replace Defective Timer
Buzzer Will Not Shut Off
  1. Defective Time Delay Relay
  2. Defective Timer
  1. Replace Defective Time Delay Relay
  2. Replace Defective Timer

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