Taylor-Wharton XL-55 - Manual (Page 23)

TROUBLESHOOTING CHART
Symptom Possible Cause Corrective Action
Container is cold and 1. Vacuum loss. Check NER. 1. Consult with Taylor-Wharton
may have ice or frost for course of action. Do not
on outer casing. Will attempt to put additional
not hold liquid over- liquid in container.
night. Relief valve is 2. Defective P.B./Economizer 2. Look for P.B. coil pattern in
venting gas. regulator. ice. Close P.B. valve.
Replace or reset regulator.
Ice formation on 1. Pressure building valve 1. Replace or rebuild valve.
bottom of container not closing properly.
when P.B. valve is 2. Leak in pressure 2. Leak test piping
closed. building system connections and tighten
topworks. fittings if needed.
Container vents Pressure Building/ Remove and reset or replace
through relief valve Economizer Regulator set regulator.
when in use. above relief valve setting.
Economizer side of
regulator clogged or
stuck open.
Container vents after This may be caused by Symptom should go away
fill but quits after residual heat vaporizing once container reaches
awhile. some liquid inside operating temperature and
container and is a normal the liquid reaches its
condition. saturation point at container
operating pressure.
Container vents gas Heat leak may be too Perform container
continuously through great. performance evaluation test
relief valve. per Maintenance section to
determine if container
vacuum is adequate.
Level indicator stuck Float rod stuck on or in Reinstall. See Contents
1/2 full. Yellow float rod guide. Gauge Installation.
indicator ring will not
move.
Level indicator at Indicator disengaged from Recouple indicator using
bottom of gauge. gauge rod. Caused by engagement ring.
Container full of dropping the container.
product.