Dryer running but not heating on any of the temperature settings. Tons of lint removed, but still not heating. Checked heating element, thermal regulator, high limit thermostat, control thermostat, start switch, and door switch for continuity. All okay. Checked motor at terminals 4 & 5 and got 2.2 ohms. Checked terminals 4 & 6 and got 8.1 ohms. What range (in ohms) is normal for the main motor? What range is normal for the start motor? Thanks.