Troubleshooting The Magnaclave
Your Guide To Maintaining & Repairing The Pelton Crane Magnaclave Sterilizers |
| Problem | Cause | Corrective Action |
| Pressure & Temperature Overriding Preset Level | a) Pressure Switch | Adjust or Replace (Part #PCS087D) |
| b) Wall Thermostat | b) Replace If Defective (Part #PCT082D) | |
| c) Reservoir Filter stopped up and cannot bleed air from chamber. | c) Clean or Replace Reservoir Filter (Part #PCK226D) | |
| d) Bellows defective and cannot bleed air from chamber | d) Replace Bellows (Part #PCB001D) | Will Not Build Temperature or Pressure | a) Insufficient water in chamber (not level-SLIGHTLY lower in front) | a) Level Sterilizer | b) Air Valve Leaking | b) Clean Air Valve Housing to remove debris and/or Replace Bellows (Part #PCB001D) |
| c) Defective Overheat Thermostat Switch | c) Replace Overheat Thermostat Switch (Part #PCT197D) | |
| d) Defective Temperature or Pressure Gauge | d) Replace Temperature Gauge (Part #PCG079D) or Pressure Gauge (Part #PCG040D) | |
| e) Faulty Function Switch | e) Replace Function Switch (Part #PCS043D) | |
| f) Door Interlock Not Closing | f) Replace Door Interlock Switch (Part #PCS087D) | |
| g)Defective Main Heater Strip | g)Replace Main Heater Strip | |
| h) Main Valve Leaking | h) Rebuild Main Valve With Main Valve Kit (Part #PCK026D) | |
| Takes Too Long To Build Temperature or Pressure | a) Load too large | a) Reduce Load Contents |
| b) Defective Wall Thermostat | b) Replace Wall Thermostat (Part #PCT082D) | |
| c) Air valve leaking excessively | c) Replace Bellows (Part #PCB001D) and Air Valve O-ring (Part #RP0354D) | |
| d) Incorrect Line Voltage | d) Check Line Voltage (208v or 220v) | |
| e) Overheat Thermostat set too low | e) Adjust Overheat Thermostat | |
| f) Heater Faulty | f) Replace Main Heater Strip | |
| Scorching Packs | a) Insufficient Water In Chamber | a) Fill Chamber to Recommended Level |
| b) Packs Touching Chamber Wall | b) Rearrange Packs So They Are Not Touching Chamber Wall | |
| c) 1. Wall thermostat not cutting power to wall heaters
2. Leaving Unit On After Buzzer Sounds 3. Wall Thermostat Defective |
c) 1. Check To Make Sure Thermostat is Touching Wall 2. Turn Unit Off When Buzzer Sounds 3. Replace Wall Thermostat (Part #PCT082D) |
|
| Does Not Dry Packs | a) Chamber Not Level | a) Level Sterilizer |
| b) Filter Not Touching Bottom Of Chamber | b) Turn Filter Until It Is Touching the Bottom Of The Chamber | |
| c) Chamber Over Loaded or Packs Packed Too Tightly | c) Remove part of load, redistribute packs so steam can circulate | |
| d) Failure To Crack Door At the End Of Cycle 1 | d) Open Door Slightly at end of Cycle 1 | |
| Door Gasket Falls Out Of Chamber | a) Defective Door Gasket | a) Replace Door Gasket (Part #PCG019D) |
| b) Opening Door With Pressure On It | b) Wait Until All Pressure Has Evacuated Before Opening Door | |
| Door Locking Ring Closes Hard | a) Rear guide pin on clamp ring out of the slot | a) Re-inset Rear Guide pin into slot |
| b) Galling Between Lock Ring & Door | b) Smooth Burs With Oil Stone | |
| c) Worn hinge Pin Bushings | c) Replace Hinge Pin Bushings | |
| Heat On Light Not On when Turned to Sterilize | a) Door locking pin not engaged | a) 1. Pin Not Fully Closed 2. Pin Mechanism Binding 3. Solenoid Locking Switch Our Of Adjustment |
| Fills To Slowly | a) Diry Filter | a) Clean/Replace Fill Line Filter (Part #PCF009D) |
| b) Insufficient Water In Reservoir | b) Fill Reservoir to Fill Line With Distilled Water Only | |
| c) Debris In Main Valve Block | c) Clean Main Valve | |
| Vents To Slowly | a) Clogged Filter In Reservoir | a) Clean/Replace Filter (Part #PCK226D) |
| b) Unit Not Level | b) Adjust Legs To Level As Needed | |
| c) Chamber Filter Not In Place | c) Make Sure Fileter Is Touching Bottom Of Chamber | |
| d) Faulty Valve | d) Rebuild Valve with Main Valve Kit (Part #PCK026D) | |
| Door Will Not Open | a) Must have power to unit for solenoid to work/td> | a) Be sure Unit is Turned On and There Is Power To The Unit |
| b) Door Open Button Stuck | b) Free Up Button/Replace Door Open Switch (Part #PCS086D) | c) Solenoid Jammed Or Broken | c) Replace Solenoid |
| d) 1 Pound Pressure Switch Defective | d) Replace 1 Pound Pressure Switch (Part #PCS087D) | |
| e) Door locking mechanism pin sheared or missing | e) Replace Locking Mechanism Pin | |
| f) Pressure In Chamber | f) Try Opening Door Again After All Pressure Has Been Relieved | |
| Timer Does Not Run | a) Defective Timer | a) Replace Timer (Part #PCT081D) |
| b) Defective Latching Relay | b) Replace Latching Relay (Part #PCR196D) | |
| c) Defective Pressure Switch | c) Replace Pressure Switch (Part #PCS049D) | |
| d) Unit Has Not Reached Pressure | d) Allow Unit To reach Pressure | |
| Buzzer Does Not Sound | a) Defective Buzzer | a) Replace Buzzer (Part #PCB088D) |
| b) Defective Timer | b) Replace Timer (Part #PCT081D) | |
| c) Defective Latching Relay | e) Replace Latching Relay (Part #PCR196D) | |
Additional Notes
- To check main electric relay:
Unplug red wire on bottom of main valve power switch and plug it on relay coil at white wire connection (disconnect white wire) - Light should be on in the following sequence:
Power Off Position - no lights
Fill Position-power on and open door lights on
Vent Position-power on and door light on
Sterilize Position-power on and (with door closed-handle down) heat light on.
At end of cycle when timer times out, buzzer sounds and sterilizer light comes on. - Check relay, timer, and buzzer:
Activate pressure switch relay should click in; timer starts; turn timer to zero buzzer should sound. To check pressure switch when switch is not engaged ; across common and normal closed will have continuity; across common to normal open with switch engaged will show continuity
