23
Component Testing
Component
Description
Testing
Capacitor
Run capacitor connects to relay
terminals 3 and L2 side of line.
1. Disconnect power to refrigerator
2. Remove captor cover and disconnect capacitor wires.
3. Discharge capacitor be shorting across terminals with
a resistor for 1 minute.
4. Check resistance across capacitor terminals with
ohmmeter set on “Rx1K “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)
Capillary tube
Capillary is sized in diameter, and
Restricted or clogged capillary tube must be replaced with
length to feed proper amount
tube of same inner diameter and length.
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.
