Component Test; Convection Motor - LG LDG4315ST Service Manual

Before testing any components, perform the following checks:
NOTE:
1. The most common cause for control failure is corrosion on connectors.
Therefore, disconnecting and reconnecting wires will be necessary throughout test procedures
2. ALL units in the first few days of use should be checked for mis-wiring or loose connections
1. All/tests/checks should be made with a VOM or DVM having a sensitivity of 20,000 ohms per-volt DC, or
greater.
2. Check all connections before replacing components, looking for broken or loose wires, failed terminals, or
wires not pressed into connectors far enough.
3. Resistance checks must be made with the power cord unplugged from the outlet, and with the wiring
harness or connectors disconnected.
• Turn off the electrical supply and gas supply going to the range.
• Replace all panels and parts before operating
• Reconnect all grounding devices after servicing
- Failure to do so can result in death or electric shock
NOTE: Below Ω value were tested at room temperature (77F/25°C)
Components

Convection Motor

COMPONENT TEST

WARNING
Test procedures
1. Refer to page 3-14 for the servicing procedure
2. Measure the resistance
(Multiple meter scale: R x 1)
4-1
Results
Normal: Approximately
Hi RPM : 24.8 Ω ± 10%
Lo RPM : 30.1 Ω ± 10%
If not replace
Abnormal: Infinite (open)
below 5Ω (shorted)