Carrier 40MPHA Service Manual page 28

DIAGNOSIS AND SOLUTION (CONT)
EF (Intelligent Eye Module Error Diagnosis and Solution)
Description: If the intelligent eye module malfunctions, the LED displays the failure.
Recommended parts to prepare:
S
Intelligent Eye
Troubleshooting and Repair:
Power off , then restart the
Check the wiring of the
intelligent eye module.
Replace the intelligent eye
unit 2 minutes later.
Is it still displaying
the error code ?
YES
Is it good ?
YES
module.
NO The unit operates normally .
NO Ensure proper connections .
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