5.
Remove the water valve.
6.
Take out the two screws that secure the top of the electrical bracket located in the
front of the mechanical area (see figure 3.4).
7.
Remove the six screws that secure the base plate to the cabinet on the bottom of the
unit (see figure 3.5).
8.
Gently slide the mechanical out the rear of the unit enough to gain access to the
condenser coil and fan shroud (see figure 3.6).
9.
Install sealed system access valve(s) and recover refrigerant. After recovering, be
sure to cap off the access valve to prevent contamination of the system.
10. Remove the fan by removing the two nuts on the fan mounting bracket at the base
plate. The fan wire leads can be left connected. Set the fan assembly to the side of
the mechanical.
11. Remove the three nuts retaining the side of the fan shroud. Remove the fan shroud.
12. Un-braze the capillary tube from the drier assembly.
13. Un-braze the hot gas valve tube at the tee on the drier assembly (see figure 3.1).
14. Un-braze and remove the drier assembly.
15. Un-braze the hot gas line from the compressor at the top of the condenser coil (see
figure 3.8).
Installation
Reverse the removal procedure. Be sure to thoroughly flush the system and evacuate to
50 microns before weight charging. If contamination was found or determined, the
evaporator should also be replaced at this time.
4.1 Drain Valve
The drain valve drains water that is left in the reservoir after ice production. The valve
will only be open for a fixed time of 45 seconds during the beginning of the harvest
cycle.
The drain valve fails by allowing water to flow into the drain during the ice production
cycle (leak-by). This can be caused by a foreign particle(s) or build-up of mineral
deposits that will not allow the valve to fully seat or has caused damage to the seat of the
valve. Periodic cleaning of the icemaker will keep build-up off valve allowing it to work
properly and should be done before further evaluation of the valve.
Symtoms of this including thin or no ice slab (depending on severity of leak) and, more
noticeably, water draining through to the drain during the ice production cycle (do not
mistake this for reservoir run off water or melted ice drain water from the ice bin). The
drain valve should be replaced if it is found to be leaking.
The drain valve solenoid actuator can also possibly fail. Test the solenoid be checking
the resistance. A resistance of 50 – 65 ohms should be found. If no resistance is found,
the drain valve will need to be replaced.
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