114 PB
COMPONENTS TESTING
Check High and Low Pressure Limit Switches
1. Ensure power is removed from the unit.
2. At fmc board disconnect the (J8) and(J7) wires.
3. The switches are wired together in series and if either switch is faulty you will get an error code 14.
4. Trace high pressure switch wires through grommet into upper cabinet and locate disconnect point.
5. Disconnect orange and blue wire.
6. Check orange to orange to check high pressure switch.
7. Check yellow to blue for low pressure switch.
8. An ohms reading of open indicates a faulty switch or refrigerant pressure.
Orange and Yellow wires
at FMC Board
Orange and Blue wries
from High Pressure
Switch
Figure 631 (Pressure Limit Switches)
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