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170 Part Number: 000015430 Rev 02 5/20
PTCR Operation Check
1. Visually inspect the PTCR. Check for signs of physical
damage.
NOTE: The PTCR case temperature may reach 210°F
(100°C) while the compressor is running. This is normal. Do
not change a PTCR just because it is hot.
2. Wait at least 10 minutes for the PTCR to cool to room
temperature.
3. Remove the PTCR from the ice machine.
4. Measure the resistance of the PTCR as shown. The
resistance reading must be between:
PTCR Ohm Value Amp Part Number
Two Terminal Black
Cera-Mite 305C2
60 to 110 12 000014323
Two Terminal
Black or Blue
Cera-Mite 305C20
24 to 46 10 8505003
Three Terminal
Blue or Tan
Cera-Mite 305C19
21 to 39 18 8504993
Three Terminal
Blue or Tan
Cera-Mite 305C09
10 to 20 36 8504913
Two Terminal PTCR
Three Terminal PTCR
Measure Resistance at Ends
Measure Resistance at Center and End
Leave Jumper Wire Attached
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