Component Testing - Amana SR520T Service

Component Testing

Component Description
Capacitor Run capacitor connects to relay
terminal 3 and L side of line.
Auger motor capacitor is in series with
auger motor. Auger motor capacitor does
not have identified terminals and can be
wired without regard to polarity.
Capillary tube Capillary is sized in diameter and length
to feed proper amount of refrigerant to
evaporator.
Capillary is soldered to suction line to
transfer heat from capillary and add
additional superheat to gas refrigerant in
compressor suction line.
Capillary discharges into evaporator.
April 1998
Test Procedures
!
To avoid electrical shock which can cause severe personal injury or death,
discharge capacitor through a resistor before handling.
1. Disconnect power to refrigerator.
2. Remove capacitor cover and disconnect capacitor wires.
3. Discharge capacitor by shorting across terminals with a resistor for 1
minute.
4. Check resistance across capacitor terminals with ohmmeter set on "X1K"
scale.
•
Good—needle swings to 0 ohms and slowly moves back to infinity.
•
Open—needle does not move. Replace capacitor.
•
Shorted—needle moves to zero and stays. Replace capacitor.
•
High resistance leak—needle jumps toward 0 and then moves back to
constant high resistance (not infinity).
Restricted or clogged capillary tube must be replaced with tube of same inner
diameter and length.
Follow all procedures for evacuation and charging of sealed system and for safe
handling of refrigerant.
35
WARNING
RS590000 Rev. 0