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7. Examine the drain cup, drain funnel and drain gutters. Repair as
required.
8. Clean the defrost drain lines using a low pressure water hose to
flush debris contained in the drain (Refer to
), and check
that the water is running freely to the outside.
Figure 6 Defrost Drain
9. Examine the TXV (Thermostatic Expansion Valve) or EEV
(Electronic Expansion Valve) for:
a. Refrigerant leaks (TXV or EEV).
b. Corrosion (TXV or EEV).
c. Proper insulation of the power head (TXV equipped,
d. Proper sensing bulb location and insulation (TXV
equipped, refer to
e. Electrical coil is correctly seated on the EEV (EEV
equipped, refer to
f. EEV coil boot is properly fitted over valve (EEV
equipped, refer to
g. Correct position of ETS1 and ETS2, securing tie is in
position and insulation is in place (Refer to
Summary of Contents for PrimeLINE 69NT40-561
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