Shellab SMO10HP-2 - Manual (Page 16)

16
Motor doesn't move
1/ if shaft spins freely: check connections to motor and check
voltage to motor
2/ if shaft rubs or is frozen, relieve binding and retest
Motor makes noise
1) Make sure that the fan or blower wheel is not contacting its housing.
Adjust the motor mounting bracket position to re-center the fan or blower
wheel, if necessary.
2) Check the fan or blower wheel for damage or out of balance condition.
Replace the fan or blower wheel if it is damaged or out of balance.
3) Turn the motor shaft to make sure that it spins freely. If it binds or the
bearings make a rubbing or scrapping sound then replace the motor.
OTHER
Controller on at all times - "locked-up"
1/ Adjust set point to room temperature. If the light goes out but is still
heating, replace the solid state relay.
2/ turn unit off and on to reset
3/ if cannot change any condition on the front panel, call Customer
Service
Controller timer resets on its own
1/ confirm that power from wall is consistent and within specs
2/ call Customer Service with serial number
Front panel displays are off
1/ Check for wire damage.
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., fan or heater, and just controller is off
4/ check all wiring connections, esp. around the on/off switch
Unit is smoking –out of box
Put unit under vent and run at full power for one hour.
Contamination in chamber
1/ see cleaning procedure in operator’s manual
2/ develop and follow SOP for specific application; include definition of
cleaning technique and maintenance schedule
Contamination in sample
1/ see “Contamination in chamber”
2/ reduce air flow in chamber by dampening down inlet restrictor; be sure
to verify adequate temperature uniformity at the reduced air flow
3/ protect open samples from areas of maximum air current, e.g., inlet air
ducts
SERVICE
If this product should require service, contact your service representative. For information on
where to reach customer service please see the front cover of this manual. If the return of this
product be necessary a return Authorization number must be obtained and the product shipped
according to your
representative’s instructions to the indicated service center. If a return
authorization number is not obtained then the product will be returned back to the sender. To
insure prompt handling, the return authorization number should be placed on the outside of the
package and a detailed explanation of the return enclosed with the item. After receiving the
Return Authorization number, the item must be received within 30 days if not the return
authorization will be void.