I have a 4 year old RM5200 hood over my stove. The motor is making a whining noise. It seems to soon for this to happen. It is loud and constant to the point where we don't want to use it. Is it time already for a new hood or is the motor fixable?

Sometimes a louver on the squirrel cage comes loose maybe from taking it apart...hand test every louver. You may find that you need a new one.

That shows a leaking water seal. Water would run into the motor bearings which then rust and make noise. You probably need the motor / pump kit.

Most likely the bearings on the motor are going out. 4 months is way too soon, but it is possible you got a lemon. Unfortunately I wouldn't expect the new one to last 12 years. It's possible but unlikely. You should however get at least a few years. If the shaft seal on the motor shaft between the impeller and seal plate failed then water can drip back along shaft and get into motor bearings. This will cause motor bearings to fail. Even if this is not the case the motor bearings can fail even though it is rare to do so within first year. I would contact the place you bought the pump from, or whoever installed it. It should have at least a one year warranty. If for whatever reason this motor is not covered under warranty and you have to replace it, I would consider rebuilding it. Normally I don't care for rebuilds, but if the motor is truly only 4 months old then rebuilding it would be a good option.

if its whining but still spinning, the bearings are done. If it just makes a loud noise, the capacitor could be bad or the bearings have seized.

A new speedometer.

I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881

There is definetly somthing blocking the air from escaping, either the duct is blocked or the installer did not remove the metal plate which opens the fan up for it to be able to evacuate.

Does this appear to happen when the fan is going? Try having your fan belt checked.

possibly the "stirrer" motor - this is in the top and turns a metal reflecting ring to disperse the microwaves around the oven more evenly. About $70 on GE site for my oven.

debris caught iside pump assy is what it sounds like