1BHFt%3*45&&.7BQPSMPHJD*OTUBMMBUJPOBOE0QFSBUJPO.BOVBM
Table 85-1:
Troubleshooting guide (continued)
Heating issues
Issue
Possible causes Actions
Heater burnout t 8BUFSMFWFMJTUPPMPX t 3FQMBDFQSPCFT
t *NQSPQFSXJSJOH t 7FSJGZQSPQFSWPMUBHFBQQMJFEUPIFBUFS
t 7FSJGZQSPQFSFMFDUSJDBMDPOOFDUJPOT
t .JOFSBMCVJMEVQPOIFBUFST t 5IFIVNJEJGJFSNBZCFVOEFSTJ[FE*ODSFBTFIVNJEJGJFSDBQBDJUZPS
replace with larger humidifier. Consult DRI-STEEM.
t *OTQFDUUBOLGPSTFWFSFNJOFSBMCVJMEVQPOPSBSPVOEIFBUFS
Increase skim duration, frequency of drain cycle, and/or frequency
of cleaning. Use softened makeup water.
t$POUBDUPSTGBJMFEUPPQFO t3FQMBDF
t443GBJMFEDMPTFE t3FQMBDF443DPOUSPMMFS
t )FBUFSDPSSPTJPO t *OTQFDUIFBUFSGPSTVSGBDFDPSSPTJPOPSQJUUJOH#FGPSFSFQMBDJOH
burned-out heater verify chloride content in supply water is very
low.
Tank does not heat up. t 0WFSUFNQFSBUVSFUIFSNPTUBUTXJUDIMPDBUFE
under heater wiring cover tripped
t 3FTFUUIFSNPTUBUTXJUDI
t )VNJEJGJFSDPWFSJOUFSMPDLTXJUDI7BQPSTUSFBN
models only)
t )VNJEJGJFSDPWFSOPUXJSFEBEKVTUJOUFSMPDLTXJUDI
t $PNCVTUJPOBJSTXJUDIPSQPXFSWFOUTXJUDI
(GTS systems only)
t $IFDLWFOUJOHTZTUFNBOEDPNCVTUJPOEBNQFST
t 7FSJGZXJSJOHBOEDPOOFDUJPOTPOTXJUDIFTBSFQSPQFSMZ
connected.
t *ODPSSFDUPSOPOFYJTUFOUDPOUSPMWPMUBHF t $IFDLGPSQSPQFSTVQQMZWPMUBHFPOFMFDUSJDBMEJBHSBN
t 7FSJGZQSPQFSUSBOTGPSNFSWPMUBHFDIBSBDUFSJTUJDT
t 7FSJGZQSPQFSXJSJOHPGUSBOTGPSNFS
t $IFDLGPSDPOUSPMDJSDVJUWPMUBHFPOFMFDUSJDBMEJBHSBN*GWPMUBHF
is not present, troubleshoot boards and wiring system for
potential short circuit.
t *ODPSSFDUPSOPOFYJTUFOUTVQQMZWPMUBHFUPUIF
unit
t $IFDLNBJOMJOFGVTF
t $IFDLNBJOMJOFTBGFUZTXJUDI
t $IFDLIFBUFSGVTFTBOEXJSJOHEJBHSBN
t %VDU3)BCPWFIJHIMJNJUTFUQPJOU t $IFDLGPSEVDUBJSGMPX
t 7FSJGZPQFSBUJPOPGEVDUIJHIMJNJUTXJUDIPSUSBOTNJUUFS
t /PEFNBOETJHOBM t $IFDLTJHOBMCZPUIFST
t $IFDLGPSNJTXJSFEDPOOFDUJPO
t 7FSJGZJOUIF4FUVQNFOVUIBUIVNJEJGJFSJTDPOGJHVSFEGPSEFNBOE
signal.
t )VNJEJGJFSJTJO4UBOECZNPEF t $IBOHFNPEFUP"VUP
Humidifier tank has proper
water level and is always
warm.
t "RVBTUBU t 5IJTJTOPSNBMUIFBRVBTUBUJTNBJOUBJOJOHBDFSUBJOUBOLXBUFS
temperature within range of 40 ºF to 180 ºF (4 ºC to 82 ºC).
t 3FBEKVTUBRVBTUBUUFNQFSBUVSFUPBMPXFSTFUQPJOU
t 443QPXFSDPOUSPMMFS t 443DPOUSPMEFWJDFTTIPSUFEDMPTFEDIFDLSFQMBDF
t 1IBTFUPQIBTFXJSJOHDSPTTFE
t $POUBDUPS t $POUBDUPSTIPSUFEDMPTFESFQMBDF
Continued
5SPVCMFTIPPUJOHHVJEF
Operation