What was found
RECIRC FAN FAULT MSG DISPLAYED. SWITCHING RECIRC FAN OFF, THEN ON DID NOT FIX PROBLEM. ELEC ODOR NOTICED WITH SWITCH IN ON POSITION. TRIED THE RESET LATER IN FLIGHT & THE MSG WENT AWAY, SO WE LEFT IT ON. THAT IS WHEN WE NOTICED THE ODOR. DEFERRED RECIRC FAN NR 2 IAW MEL 21-22-1. MM02 UPDATED. PLACARD INSTALLED. CB OPENED & COLLARED. PERFORMED OPERATIONAL TEST OF THE RECIRC FANS IAW AMMM 21-22-10. OPERATIONS TESTED GOOD. THIS CLEARS CTR 3172759-1, MM02 UPDATED & PLACARD REMOVED.