Troubleshooting - Honeywell 50045947 Install And Operation Instructions

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 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 fil-
ters
Missing flow control in drain
line
Storage tank air charge is
less than 5-7 psi (Models
50045947-001 &
50045947-002
Scaling on element
Heavy sediment in tank
Check valve or automatic
shutoff assembly plugged or
parts worn
10
Corrective Action
Replace #1 sediment filter and
#2 RO filter. See steam
humidifier manual trouble-
shooting section for specific
humidifier steps
Replace flow control (provided
with 50046086-001)
Drain the storage tank. Check
tank air pressure and, if low,
pressurize to 6 psi
See steam humidifier manual
for cleaning steps
Replace RO system