Carrier bryant Multi-Zone 38MARBQ09 18AA3 Series Service Manual page 14

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40MBDQ09~58--3 Ducted
Indoor Fan Error – E3 (page 2 of 2)
Reactor
Fan Inverter
PCB is under
Main PCB.
Turn OFF
power to
outdoor unit.
Remove 2
screws
underneath
and carefully
lean out top
assembly to
change
Inverter PCB.

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