Shellab SVAC2E-2 - Manual (Page 12)

12
TROUBLESHOOTING AND SERVICE
Always make a visual inspection of the oven and control console when troubleshooting. Look for loose or
disconnected wires or tubing, which may be the source of the problem. The oven is designed so that no
internal electrical servicing should be required under normal conditions. If electrical servicing is
necessary, it should be performed by qualified service personnel.
TEMPERATURE
Temperature too high
1/ controller failed on – call Customer Service
Temperature too low
1/ unit not recovered from door opening
2/ unit not recovered from power failure or being turned off
3/ element failure
– see if heating light is on; compare current draw to
data plate
4/ controller failure – confirm with front panel light that controller is calling
for heat
Unit will not heat up at all
1/ verify that controller is asking for heat by looking for controller light – if
pilot light is not on continuously during initial start up, there is a
problem with the controller
2/check amperage – amperage should be virtually at maximum rated
(data plate) amperage
MECHANICAL
Door not sealing
1/ check physical condition of gasket
2/ adjust hinges and latch to insure that the glass is laying flat against the
gasket
3/ Confirm that unit has not been damaged and body is not out of square.
Unit won’t hold vacuum
1/ check door gasket for damage, wear or improper installation.
2/ assure all vent and feed valves are closed tightly
3/ assure tight connections to pump
OTHER
Unit or wall fuse/circuit breaker is blown
1/ check wall power source
2/ compare current draw and compare to specs on data plate
3/ see what other loads are on the wall circuit
Unit will not turn on
1/ check wall power source
2/ check fuse/circuit breaker on unit or in wall
3/ see if unit is on, e.g., heater, and just controller is off
Unit is smoking – Out of box
This is not uncommon during initial operation. Put unit under vent and run
at full power for one hour.
Contamination in chamber
1/ see cleaning procedure in opera tor’s manual
2/ develop and follow standard operating procedure for specific
application; include definition of cleaning technique and maintenance
schedule
SERVICE: If this product should require service, contact your service representative. Should return of the product be
necessary, a return authorization number must be obtained and the product shipped prepaid, to the proper service
center. To insure prompt handling, the return authorization number should be placed on the outside of the package or
container. Make sure a detailed explanation of the reason for return is enclosed with the unit. For information on
where to contact customer service, please see the manual cover.
Section
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