Manual

WM150 OWNERS MANUAL Page 7 of 12
Drawing No.
:
-
TPC316
Issue :- 7
Date :- 10/12/13
ROUTINE MAINTENANCE
To ensure continued full efficiency of the dehumidifier, maintenance procedures
should be performed as follows:
1. Clean the surface of the evaporator and condenser coils by blowing the dirt
out from behind the fins with compressed air. Hold the nozzle of the air hose
away from the coil to avoid damaging the fins. Alternatively, vacuum clean
the coils.
2. Remove the air filter and clean by either blowing compressed air through,
vacuuming or washing in warm water
3. Check that the fan is firmly secured to the motor shaft and that the fan
rotates freely. The fan motor is sealed for life and therefore does not
need oiling.
4. To check the refrigerant charge, run the unit for 15 minutes and briefly
remove the top cover. The evaporator coil should be evenly frost coated
across its surface. At temperatures above 25°C, the coil may be covered
with droplets of water rather than frost. Partial frosting accompanied by
frosting of the thin capillary tubes, indicates loss of refrigerant gas or low
charge. During this inspection, check visually to ensure that the pump rollers
are turning.
5. Check all wiring connections.
6. To check the operation of the defrost system, switch the machine on and
leave it running for approximately 42 minutes. The machine will then enter
“Reverse Cycle” defrost mode for approximately 4 minutes before returning
to normal operation. If the unit will not defrost, the printed circuit timer board
may be defective or the by-pass valve may be inoperable.
I F ANY OF THE PRECEDING PROBLEMS OCCUR , CONTACT THE EIP S ERVICE C ENTER PRIOR
TO CONTINUED OPERATION OF THE UNIT TO PREVENT PERMANENT DAMAGE .
WARNING
ENSURE THE UNIT IS ISOLATED PRIOR TO CARRYING OUT ANY
ROUTINE MAINTENANCE
WARNING:
DO NOT STEAM CLEAN
REFRIGERATION