Electrolux Icon E30SO75ESS - CONVECTION MOTOR CAPACITOR TEST; CONVECTION MOTOR TEST

Troubleshooting and Testing
3-11
Procedure
Letter
R
S
Component Test
CONVECTION MOTOR CAPACITOR TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor. (See Warnings and Instructions on page 3-1)
4. Disconnect input leads and check for short or open between the terminals using an ohmmeter.
Checking with a high ohm scale, if the capacitor is normal, the meter will indicate continuity for a
short time and should indicate an open circuit once the capacitor is charged. If the above is not
the case, check the capacitor with an ohmmeter to see if it is shorted between the terminals. If it
is shorted, replace the capacitor.
5. Reconnect all leads removed from components during testing.
6. Reinstall the outer case (cabinet) and the back plate.
7. Reconnect the power supply cord after the outer case and the back plate are installed.
8. Run the oven and check all functions.
CONVECTION MOTOR CAPACITOR TEST
1. Disconnect power supply cord, and remove outer case.
2. Open the door and block it open.
3. Remove the back plate from the oven.
4. Disconnect the 3-pin connector of the convection motor from the main wire harness.
5. Measure the resistance of the convection motor with an ohmmeter.
The resistance of the main coil, across black and red wires, should be approximately 130 ohms.
The resistance of the sub coil, across black and white wires, should be approximately 140 ohms.
6. Also, the convection motor has the thermal cut-out in it.
Measure the resistance of the main coil (or the sub coil). The resistance across the black and red
wires (or across the black and white wires) should be above resistance unless the temperature of
thermal cut-out reaches approximately 266°F (130°C). The thermal cut-out resets automatically
at 212°F (100°C). If an ohmmeter indicates an open circuit under normal condition, replace the
convection motor because the thermal cut-out has opened. An open thermal cut-out indicates
overheating of the convection motor. Check for restricted air flow to the convection
motor or a lock of the convection fan, especially the fan motor (power transformer side).
7. Reconnect all leads removed from components during testing.
8. Reinstall the outer case (cabinet) and the back plate.
9. Reconnect the power supply cord after the outer case and the back plate are installed.
10. Run the oven and check all functions.
BLK
RED
WHT
Main Coil
3-pin
Connector
Sub Coil
Thermal
Cut-out
130°C OFF
100°C ON
130‰
140‰
CONVECTION MOTOR