Check to see whether any pipes are touching.
DIAGNOSIS 1
Step 1
Check whether any pipes are touching wall of compressor area.
Step 1
Check whether pipes are touching drain pipe or drain tray.
DIAGNOSIS 3
Step 1
Check whether tube is well-attached to water tray.
DIAGNOSIS 4
Step 1
Shake the tray to feel if it is loose.
PROCEDURE 1
Unscrew.
Move evaporating pipe up.
Push the tray in to loosen it from buckle and move tray up to take it out.
PROCEDURE 2
Make sure the hook is fixed onto edge of holder plate edge firmly.
CHECK AND TEST 2
Check whether pipe is resonating noisily.
DIAGNOSIS 1