There is a switch on the housing of the fan. It is under the blades and above the lites if you have lights. Also same area as the chains. That is the reverse switch you might have hit it when cleaning the fan. just flip the switch iy goes left to right or reverse.
Good Luck and please rate
First of all, you should Never put two or more fans on the same remote (my opinion). This is what happens. If the remote function is on the transmitter, You have to turn the power off to the correct fan while you correct the direction on the other fan. If the reverse function is not on the transmitter look for a reverse switch on the fan. Somebody might have moved it when cleaning.
Look for a reversing switch on the motor housing.
not installed and wired correctly
if you did the installation , get in a electrician to rectify the wiring installation
Having problems turning off the light on my minka aire remote and turning on fan