MAINTENANCE SCHEDULE
WARNING! ELECTRIC SHOCK HAZARD. Unplug the
dehumidifier before performing any maintenance.
WARNING: Risk of dust and contaminants exposure.
Use of respirator mask and gloves is recommended. If
unit has been exposed to potentially dangerous
contaminants, clean thoroughly and sanitize before
reuse.
NOTICE: The unit is fitted with sensitive electronic
sensors. Protect the sensors and their lead wires from
damage and do not expose them to water or cleaning
solution.
The following tools and supplies are needed to
complete the maintenance procedures described in
this manual:
Philips and flat blade screwdrivers
Needle-nose pliers
∕
in. wrench
9
16
∕
in. nut driver or socket
3
8
∕
5
in. socket (to remove pump)
16
6 in. socket extension
Ratchet wrench
Cleaning cloths
HEPA vacuum cleaner with soft brush nozzle and
crevice nozzle.
Recommended
Cordless drill, small knife, small-jaw pliers, coil
cleaning solution, Rotomolded housing cleaning
solution
Before each use
Inspect the electrical cord for damage. Look for
fraying, cuts, etc. Replace the cord if you find any
damage.
07-01776N F412
Inspect filter. Replace if accumulation of dust and
debris is visible.
NOTICE: Replace used filters only with a new Dri-Eaz 4-
PRO filter part no. F581 (24-pack). Other filter types do
not provide adequate filtration or airflow. Each filter is
individually wrapped to protect filtration effectiveness.
Remove the wrapper before installing the filter into the
dehumidifier.
Monthly
Inspect coils and heat exchange block. Clean when
dust accumulation is visible. In normal use, dust can
accumulate and can restrict airflow, reducing
performance and causing the unit to overheat. See
"Disassembling the unit to clean coils and the heat
exchange block," below.
To maintain appearance, wipe interior and exterior
surfaces with a damp cloth. For deep cleaning and a
lasting, protective shine, use a similar automotive interior
treatment.
As Needed
Clean Pump Check Valve and Basin. If the unit
displays the message "ER9 PUMP BLOCKED PUMP &
HOSE", the pump check valve and pump basin may
need to be cleaned. This requires removal of the back
cover.
Clean coils and heat exchange block. Inspect the
horizontal evaporator (cold) coil with the back cover
removed. If excessive dust and debris is present,
vacuum thoroughly and/or clean with alkaline (non-
acidic) coil cleaner.
7
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