Vertiv Liebert CRV - Page 130

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Water on the floor
around the unit
Unit is not properly
leveled
Adjust the leveling feet
Unit condensate drain
pipe is clogged
Remove pipe obstruction
Chilled water and
water/glycol units: leak
in the water circuit
Locate and repair the leak
Piping insulation
broken/damaged
Restore insulation integrity
Leak in the draining
circuit
Contact your local Vertiv™ representative
Condensate pump is
faulty
Contact your local Vertiv™ representative
Leak in the humidifier
filling hose
Contact your local Vertiv™ representative
Unsteady air
delivery
temperature
Incorrect positioning of
remote temperature
sensor(s)
Verify correct positioning of temperature sensors
Unbalanced heat load
distribution
Redistribute rack heat load
Remote temperature
sensor(s) issue
Contact your local [[[Undefined variable crv_nomenclature_detail_appdx.CompanyShort]]]
representative
Faulty temperature
sensor(s)
Contact your local Vertiv™ representative
Unit controller issue
Contact your local [[[Undefined variable crv_nomenclature_detail_appdx.CompanyShort]]]
representative
Local display is not
operational but unit
operates
Local display cable
disconnected
Connect cable
Local display cable
damaged
Replace cable
Local display
configuration lost
Contact your local Vertiv™ representative
Local display is not
operational and unit
does not operate
Unit electrical supply is
Off
Restore electrical supply
Unit main switch is Off Switch On the unit
Control board supply
issue
Contact your local Vertiv™ representative
Control board issue Contact your local Vertiv™ representative
Table 12.1 Unit diagnostics (continued)
Vertiv | Liebert CRV Installer/User Guide | 130