That s not what balance is.
Balance attic fan blades.
Turn off the fan.
If your fan is belt drive it should work if you can remove the belt.
Now i suspect the other two motor replacements burned up due to the weak skinned original fan blade was out of balance when i tried to reshape them back to the original pitch.
Follow these steps to troubleshoot the issue and get a fan back on an even keel.
Balance does not require symmetry in fact making the fan blades the right kind of asymmetrical makes them quieter.
It may be due to a low quality ceiling fan but it could also be due to a balancing issue.
Before attempting to balance the ceiling fan visually inspect all of the blades and make sure that none of them are warped or damaged.
If the fan makes a constant metal clanking noise in all probability the fan blades are imbalanced.
Tighten the screws on the blade brackets.
Mark the blades with tape.
Restore your fan to its smooth running days of old before you wear down the moving parts.
Balance is a whole nother thing.
Clean the fan and blades.
Easiest fastest way to balance a fan.
This only works on free spinning direct drive fans where the shaft can be placed horizontally at least for the balance procedure.
In such cases either balance them out or replace the blades entirely.
Kits come with a plastic clip and up to five small weights often with an adhesive backing to make them easy to attach to the fan blades.
If one of the blades is damaged it may need to be replaced.
That s a geometry problem probably because you misaligned it when reassembling it wasn t that way before.
This replacement fan blade will not bend if that is important to you.
Ceiling fan balancing kits are usually packed in with a new ceiling fan but they can also be purchased separately.
This is something that can occur even in regular ceiling fans as a consequence of regular use.
No special tools no removing blades no drilling no weights and it achieves an excellent balance.
For safety ensure that the fan is off and completely stopped before working on the blades.
If this is the case you ll likely have to call the fan s manufacturer because most home improvement stores do not carry replacements.