Liebert PX018 Installer's/User's Manual page 81

Table 9.5 Steam generating humidifier troubleshooting guide
Symptom
Unit in call for humidification,
humidifier will not operate
Humidifier Contactor pulled in,
but no water enters canister
Excessive arcing in canister
Vertiv | Liebert® PDX™ and PCW™ Installer/User Guide |
Possible Cause Check or Remedy
Verify ON/OFF/DRAIN switch is in ON position.
Humidifier not
Check fuses or CB's and replace or reset if necessary.
receiving power
No water available
Check external water shut-off valves.
to unit
Clogged fill line
Clean or replaced fill line strainer
strainer
Drain valve
Verify that drain valve operates freely when activated. Clean valve and replace if defective.
clogged or
Flush canister several times and replace if arcing persists.
defective
Improper water If water is commercially softened, reconnect humidifier to raw water supply, drain canister
supply and restart. If connected to hot water supply, reconnect to cold water.
Insufficient drain Verify that drain valve operates freely when activated. Clean valve and replace if defective.
rate Flush canister several times and replace if arcing persists.
Excessive mineral Analyze mineral content of water. If mineral content is excessive contact Vertiv™ Technical
content in water Support.
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