This applies to 16, 17, and 18 Cu. Ft. refrigerators built by GE (TMNF Models) with a serial number beggining with 7 or 8. Yes, it’s pretty specific… and really I can make it more simple- if your refrigerator came with condenser fan (the fan under the refrigerator) number WR60X10168 then this might interest you.
A lot of customers complained that the condenser fan motor was too loud on these refrigerators. GE came up with the following solution:
In those instances where a consumer perceives the normal condenser fan noise as too loud or objectionable, replace the original WR60X10168 condenser fan motor with the slower RPM WR60X10020 fan motor.
This slower RPM motor greatly reduces fan noise without adversely affecting performance.
Inspect the fan blade and mounting grommets for any abnormalities and replace if necessary. Ensure the blade spins freely without touching the fan shroud and that all brackets are tightened.
This bulletin is specific to refrigerators whose third serial number character is either a 7 or 8 (for example: GH7368754).
GE Service Bulletin