Troubleshooting - Honeywell HM600XROF1/U Installation Operation & Maintenance

The following table refers to the steam humidifier's fault detection feature.
Number of
"Service" red Description
light blinks
2 Water level sensors
failed to detect tank
water
3 Failed to fill steam
humidifier tank
4 Heating element
overheated
6 Water overflow
sensed in
humidifier tank
13 Tank failed to drain
Blinking "Cleaning
required" light on
steam humidifier
Continual water flow
to drain

TROUBLESHOOTING

Possible Cause
Scaling on the sensor
Expired #1 and #2 water
filters
Missing flow control in drain
line
Scaling on element
Heavy sediment in humidifier
tank
Check valve or automatic
shutoff assembly plugged or
parts worn
8
Corrective Action
Replace #1 sediment filter and
#2 RO filter. See steam
humidifier manual
troubleshooting section for
specific humidifier steps
Replace flow control
See steam humidifier manual
for cleaning steps
Replace RO system