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Old 09-10-2010, 07:54 PM   #1
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Ductless mini split


No response from wall unit or compressor. Wall unit seems to receive signal from remote, but does nothing. Outdoor unit has power to it and wall unit has power too. Diagnostic light does nothing.
Could it be the wall unit circuit board?

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Old 09-12-2010, 08:42 AM   #2
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Ductless mini split


5 minute time delay ??

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Old 09-12-2010, 02:50 PM   #3
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Ductless mini split


No... The only thing that will work is the sweeping louver....no manual fan or A/C.
There's a circuit board that receives the signal from the remote, then it goes to the main circuit board via a plug. Wonder if the board that receives the signal isn't sending to the main board?
The unit is 6 years old...40BNB036 Carrier
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Old 10-07-2013, 11:38 AM   #4
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Ductless mini split


Quote:
Originally Posted by radecke View Post
No response from wall unit or compressor. Wall unit seems to receive signal from remote, but does nothing. Outdoor unit has power to it and wall unit has power too. Diagnostic light does nothing.
Could it be the wall unit circuit board?
How can I bypass a circuit board in a mini split ac unit. Nothing is coming on. Power to all sistems. 24 volts out transformer but nothing comes on.
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Old 11-18-2013, 02:17 PM   #5
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Ductless mini split


New batteries in the remote.
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