Shellab SWBR27-2 - Manual (Page 17)

Reciprocating Water Bath 17
Table 4. Mechanical Troubleshooting
Problem Possible Cause Solution
Water leaking Leak
Dry bath and check the tank with flashlight to see if leak is
noticeable.
Fill tank again and see if leak repeats and find source of leak.
Sources may include: fittings that need tightening, crack in outlet
tube, or crack in tank. Call Customer Service if these things are
noted.
Holes or rust in water bath tank
N/A
Assure that clean, distilled water is used. Deionized water, tap
water, and chemicals should never be used in the tank. USE
DISTILLED WATER ONLY.
N/A Assure that no test sample has leaked into bath water.
N/A
No metallic products should be in the tank with exception of the
oscillation rack.
Rack is not oscillating
N/A
Check if locking pin on rack is securely in the bearing of the
reciprocation shaft.
N/A Verify that oscillation set point is within specified parameters.
N/A Verify that oscillation and power switches are in the ON position.
N/A
Note: Call customer service if the above suggestions do not
solve the problem.
Note: N/A is not applicable.
Table 5. Miscellaneous Troubleshooting
Problem Possible Cause Solution
Controller on at all times -
"locked-up"
N/A Turn unit off and on to reset.
N/A
If you cannot change any condition on the front panel, call
customer service.
Front panel displays are all off
Unit or wall
fuse/circuit
breaker is blown.
Check for wire damage.
N/A Check wall power source.
N/A Compare current draw and compare to specs on data plate.
N/A See what other loads are on the wall circuit.
Unit will not turn on
N/A Check wall power source.
N/A Check fuse/circuit breaker on unit or in wall.
N/A
Check all wiring connections, especially around the on/off
switch.
Unit is smoking out of the box N/A
This is not an uncommon occurrence for new units. The
elements will burn off protective coatings. Run the bath in a
well ventilated area at high temperature for one hour until
smoke dissipates.
Note: N/A is not applicable.