Installation guide

Installation Guide
69-2307—01 20
TRoubleshooTIng
No. of
Red
Light
Blinks
Fault Description Auto-
Recoverable?
Steps to Fix
To be Performed by Professional HVAC Technician Only
4 Heating element
overheated.
No • Followtankcleaningsteps(pages23–25).
• ReassembletankandpresstheRESETbutton.
• Iffaultreturns,replacewithapplicablehumidifier.
5 Input voltage insuf-
ficient.
Yes,systemwill
return to “Ready”
if fault no longer
exists in 1 hour.
•Unplugandreplugtheunitintoseeifthefaultreturns.
•Iffaultreturns,unplugunitandremovecover.
•Ensurewiringconnectionsaresecureandattached.
• Iffaultreturns,replacethehumidifierwithanewone(field
service is not recommended in the event line voltage is lost).
6 Water overflow
sensed.
Yes,systemwill
return to “Ready”
if fault no longer
exists in 1 hour.
•Ensuredrainhoseisnotkinkedorsubmergedinwaterat
the drain. Check functionality of condensate pump if used.
• Checkforwatercomingoutofdrain/overflowline.If
continuous water flow is present, follow the cleaning steps
on pages 23–25.
• PressEMPTYbuttontodraintank.
• SethumidistatRHsetpointtoTestmode.
• Iffaultreturns,unplugthehumidifier.
• Loosencoverscrewandremovecover.
• Disconnectwaterlevelsensorwiringandliftsnap-hingeclamp
to remove water sensor assembly. See image on page 19.
• Cleanprobesusingwarmsoapywatersothatthemetalis
exposed.
• Reassemblethesensorassemblyintheunit,reattachand
secure cover.
• Plugunitin,andpressRESETbutton.
• Iffaultreappears,replacewatersensorassemblyand/or
solenoid valve.
7 HVAC power not
present (monitor this
fault only when DIP 4
and 5 are OFF).
Yes,systemwill
return to “Ready”
if fault no longer
exists in 1 hour.
•Unplugandreplugtheunitintoseeifpowerreturns.
•Ifnot,ensureHVACequipmenthaspower.Checkcircuit
breaker and replace fuse if circuit is tripped.
• Unplugthehumidifierandremovecover.
• EnsureDIP4isONandreattachcover.
• Plugunitin.
• Iffaultreappears,ensurethecircuitbeingusedhasthe
rating to support the unit. Unplug any additional equipment
plugged into this circuit. If fault disappears, the circuit
capacity is not properly sized to your unit.
• Iffaultreturns,replaceunit.