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I have a 3-speed ceiling fan with LED lights on the top and bottom. There's no wall switch, just the remote. The remote allows selecting the speed and turning on the top or the bottom light. The fan will not turn on, but the lights will. However, the light also comes on randomly. I don't know if the problems are independent.
RESISTANCE TEST:
After taking the fan down, I tested the wires with a DMM and a bulb in series. Here are the results I get:
BULB TEST:
With the mains connected to the black wire; another wire from the bulb to the mains; and the 3rd wire from the bulb to:
Red: the top light goes on and there's a hum
Blue: the bottom light goes on and there's a hum
White: no lights on and the motor starts to turn
I'm not sure how to interpret these results. Any suggestions?
UPDATE: I checked the PCB that receives the signal from the remote and some of the caps have a high ESR. Also, the wires are labeled for what they control and it matches the results of my bulb test. Could it be that the fan motor is OK but components on the PCB are bad so the signal isn't getting to the motor?
RESISTANCE TEST:
After taking the fan down, I tested the wires with a DMM and a bulb in series. Here are the results I get:
| Black | Blue | White | Red | |
| Red | OL | OL | OL | - |
| White | 87 ohms | 14 | - | OL |
| Blue | 14 | - | 14 | OL |
| Black | - | 14 | 87 | OL |
BULB TEST:
With the mains connected to the black wire; another wire from the bulb to the mains; and the 3rd wire from the bulb to:
Red: the top light goes on and there's a hum
Blue: the bottom light goes on and there's a hum
White: no lights on and the motor starts to turn
I'm not sure how to interpret these results. Any suggestions?
UPDATE: I checked the PCB that receives the signal from the remote and some of the caps have a high ESR. Also, the wires are labeled for what they control and it matches the results of my bulb test. Could it be that the fan motor is OK but components on the PCB are bad so the signal isn't getting to the motor?
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