Desa R35D Service Manual page 15

4 Dry Motor Bearing
If the fan is difficult to turn with air pump parts removed,
then motor bearings are defective. Bearings are perma-
nently lubricated, therefore motor should be replaced.
5 Open Motor Windings
Disconnect motor wires (red and white) from ignition con-
trol assembly. Attach the ohmmeter leads to the moter
wire terminals. Using the 0 to 200 OHM scale, measure
the resistance of the motor windings. Refer to the chart
below for resistances for each model. If the resistance is
not within the specified range motor is defective and
should be replaced.
NOTE: Resistances may vary due to motor temperature.
MOTOR WINDING RESISTANCE
MODEL
35,000, 50,000, 55,000, 60,000
70,000
100,000, 110,000, 150,000
155,000, 165,000
200,000
Note: In some cases it is possible for the resistance to read
correctly without power applied and the motor still not work
with power applied. If the ignition control assembly is tested
and found to be good, then the motor is defective and should
be replaced.
For replacement parts contact:
Hot Surface Ignition Models Service Manual
RESISTANCE
RANGE (OHMS)
5.57-6.81
6.03-7.37
4.14-5.06
3.96-4.84
www.PartsFor.com
15
Note: Motor may vary
according to model