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16
The following table provides a troubleshooting guide for the Cryomatic system in the event of minor problems. If the problem is not cleared then the
supplier must be contacted for further assistance.
Problem
Possible Cause
Corrective Action
Front panel blank – equipment
appears dead.
Mains fuse(s) blown.
Disconnect equipment from 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 possible expansion of some coupling components).
Allow probe to cool to room temperature before trying to
connect it.
Probe is connected but automatic
purging does not start.
Possible damage to electrical contacts of console or probe.
Dirty or oxidised probe contacts.
Inspect contacts and clean carefully if necessary. If fault does
not clear then contact supplier for repair.
Probe does not freeze at all.
Insufficient gas supply or gas cylinder valves not opened
properly – cylinder symbols on front panel will be shown as
empty.
Replace empty* gas cylinders with full ones. Ensure that all
gas valves are opened correctly (see Section 3).
Footswitch may have become disconnected.
Reconnect footswitch to console. If fault does not clear,
contact supplier for repair.
Probe freezes but performance is
poor.
Possible partial blockage in the probe (possibly caused by
excess moisture after sterilisation procedure). Probe may
appear to begin to freeze but then block or perform poorly.
Ensure correct sterilisation 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 left to dry completely before use.
Exhaust hose is blocked or occluded.
Check the exhaust hose for blockages or occlusions and
replace if necessary.
Probe freezes correctly initially but
then performance is reduced or probe
does not freeze.
Blocked probe.
Release footswitch. Allow console to back-flush the probe
before attempting another freeze.
Gas supply has run out.
Replace empty* gas cylinder. Ensure that the gas valve is
opened correctly. If fault does not clear, contact supplier for
repair.
Probe freezes correctly but Cryomatic
delivery system is not pulsing.
Cylinder pressure has dropped due to usage, but
performance is still above the acceptable level.
Gas cylinder pressure has reduced (indicated on front panel
display).
Auto Defrost takes longer than usual.
Possible leaking internal hose connectors.
Return the console and probe for repair.
Possible fault in console.
10. Troubleshooting Guide
*gas cylinders are deemed to be empty when the internal pressure is less than 350 PSI/25 Bar (2415 kPa)
