8 Fault elimination
Important! Mostoperationalmalfunctionsarenotcausedbyfaultyequipmentbutratherbyimproper
installationordisregardingofplanningguidelines.Therefore,acompletefaultdiagnosisalwaysin-
volvesathoroughexaminationoftheentiresystem.Often,thesteamhoseconnectionhasnotbeen
properlyexecuted,orthefaultlieswiththehumiditycontrolsystem.
8.1 Fault indication
Incaseofmalfunctionduringoperation,theunitcontrolcheckswhetherthereisatemporaryprob-
lemorwhetheritcanresolvetheproblembytakingnecessarymeasures.Suchmalfunctionsare
not indicated in the normal operation mode. However an appropriate error code with the status
“Warning” is generated.
Note:Ifthecauseofthemalfunctiondisappearsofitsownaccordorifthecontrolscanrepairthe
malfunction,thealarmwillautomaticallyreset.
Ifthecontrol,afterseveralattempts,failstosolvetheproblem(numberofattemptsdependsonthe
typeofmalfunction)oriftheproblemobstructsfurtheroperation,theheatingvoltageisinterrupted
via the main contactor. The red LED lights in normal operation mode and an appropriate error
codewiththestatus“Error” is generated.
Theerrorcodecanbequeriedintheinfomode. Press drain/info key at least 3 seconds to
entertheinfomode.IntheinfomodethenumberofashesoftheredLEDindicatesthedecade
oftheerrorcodewhilethenumberofashesoftheyellowLEDindicatesthedigitoftheerrorcode
(refertochapter6.3.1forfurtherinformationregardingtheinfomode).
Examples:
Normal operation
mode
redLEDlights yes no yes yes
Infomode
redLEDashes.. –– 2x 2x 3x
yellowLEDashes.. 2x 1x 1x 7x
Error code E2 W21 E21 E37