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11. Troubleshooting guide
The following table provides a troubleshooting guide for the Cryomatic MKII system in the event of minor problems. If the problem is
not cleared then the supplier must be contacted for further assistance.
In the unlikely event that the probe fails to defrost, immediately switch off the console and apply saline solution to the probe.
Problem
Possible cause
Corrective action
Front panel blank - equipment
appears dead.
Mains fuse blown.
Disconnect equipment from the mains supply and replace
with fuses of the correct rating.
Probe coupling will not connect
correctly.
Probe is still too hot after a sterilisation procedure (this may
cause expansion of some coupling components).
Allow probe to cool to room temperature before trying to
connect it.
Probe does not freeze at all.
Insufficient gas supply or cylinder valves not opened
properly - cylinder symbol on front panel will flash empty.
Replace empty gas cylinder with a full one. Ensure that
cylinder valve is opened correctly (see Section 6).
Footswitch may have become disconnected.
Reconnect footswitch to console. If fault does not clear
contact supplier for repair.
Reusable probe freezes but
performance is poor.
Possible partial blockage in the probe (possibly cause by
excess moisture after sterilization procedure). Probe may
appear to begin to freeze but then blocks or performs
poorly. Check front panel for associated fault code.
Ensure that correct sterilization procedures are followed,
including a drying cycle (in sterilizer or drying oven).
Disconnect and reconnect probe to force another purging
cycle. If this fails then probe should be allowed to dry
completely before use.
Probe freezes initially but then
performance is reduced or probe does
not freeze.
Blocked probe. Check front panel for associated fault code.
Release footswitch. Allow console to back-flush the probe
before attempting another freeze.
Gas supply has run out. Check cylinder symbol on front
panel.
Replace gas cylinder. Ensure that cylinder valve id opened
correctly. If fault does not clear contact supplier for repair.
Exhaust hose is blocked or occluded.
Check exhaust hose for blockages or occlusions and replace if
necessary.
Probe freezes correctly but Cryomatic
delivery system is not pumping.
Cylinder pressure has dropped due to usage, but
performance is still above the acceptable level.
Check cylinder symbol on the front panel to assure adequate
gas supply pressure.
Auto defrost takes longer than usual.
Possible leaking internal hose connectors.
Return the console and probe for repair.
Possible fault in console.
Gas leak evident from around probe
coupling connection.
Inspect probe for damaged O ring seals.
Return probe for replacement of seals.
*gas cylinders are deemed to be empty when the internal pressure is less than 350PSI / 24Bar (2415kPa)
