Lennox Mini-Split Service Manual / Page 244
Compressor Check
Measure the resistance value of each winding by using the tester. This can also be used to check for shorted
compressor windings, and identifying terminals when they are no longer legible.
Position Resistance Value
DA150S1C-20FZ DA250S2C-30MT TNB306FPGMC-L MNB36FAAMC-L
Blue - Red 0.95Ω (20°C/68°F) 0.55Ω (20°C/68°F) 0.53Ω (20°C/68°F) 0.44Ω (20°C/68°F)