Compressor Not Running; Testing The Windings Of The Compressor; Resistance And Amp Values Of G-Series Compressors; Troubleshooting External Overload Protector - Traulsen G Series Service Manual

6.2.3 Compressor Not Running:

If the condenser fan motor is running but not the compressor, the compressor may be overheated. Carefully
place your hand on the dome of the compressor. If the compressor is very hot, the external overload protector
may be open. Disconnect power to the unit and give the compressor ample time to cool.

6.2.4 Testing the Windings of the Compressor

After compressor has been sufficiently cooled. Remove all the start components from the compressor. Now use
an ohm meter to measure the resistance of the windings, comparing the resistance values measured with the
values given in Table 12. Be careful when measuring resistance to make a good connection to each terminal
with your meter lead. Take several measurements to ensure you are consistently getting the same values. If the
resistance values are consistent, but do not match the values given below, replace the compressor with OEM
replacement
.

6.2.5 Resistance and Amp Values of G-Series Compressors:

Compressor Information
Traulsen Part
Number
321-60203-10
321-60204-10
321-60204-20
321-60205-10
321-60206-10
321-60215-10
321-60244-10

6.2.6 Troubleshooting External Overload Protector:

If the windings of the compressor match the values given above, the overload can be tested with an ohm meter
for continuity. A closed switch should have continuity indicative of a complete circuit. If the external overload
will not close after cooling, replace the overload protector. If compressor starts and runs while the current is at
or below the RLA, but the overload still opens, replace the external overload protector with OEM replacement
Embraco Copeland
Model Model
NEK6160Z ARE25C4E-IAA
NEK2150GK AFE17C4E-CAA
NEU2155GK AFE20C5E-CAA
NEK6187Z ARE34C4E-IAA
NT2178GKV RFT26C1E-CAA
NT6217ZV RRT64C1E-CAA
NT2212GKV RFT42C1E-PFA
Table 12: Resistance and Amp Values
Figure 50: Overload
Resistance
Start Run
Winding Winding
6.14Ω 1.24Ω
4.5Ω .77Ω
5.99Ω 1.10Ω
6.1Ω 0.96Ω
2.6Ω .40Ω
2.62Ω .51Ω
1.10Ω .35Ω
Current
RLA LRA
4.9 28.5
7.8 41.5
6.3 40
4.6 37
10.8 66
11 45
15.5 81
.
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