I'm looking for some opinions about replacing or repairing a dryer.
I have a 16 year old Kenmore electric dryer. Lately it's been getting noisier and noisier and seems to by drying slower. The noise is a slow, low pitch, rising and falling cycle. I have checked and cleaned the vent (about 9' of straight 4" pipe, w/one 90" bend).
I know 16 years is a good lifespan for an appliance, however, I also know that dryers are simple enough that it might make sense to repair rather than buying a new one of equal capacity. I'm going to examine it more closely this weekend, but the "structural" parts; drum, chassis, etc. seem sound and not excessively worn, and the heater and electronics seem OK. I can't really get at the motor until I take it apart some, so I'm not sure about the condition of it yet. The rear drum seal seems to be sticking out a couple of places, and rotating the drum by hand seems uneven, so I figure I'd have to replace the seals at a minimum, as well as the belt and maybe the drum support rollers.
My question is that given the age, is it reasonable to replace the worn components, or should I just go for a new unit? Are the motors and/or heaters in newer units significantly more efficient to operate? I wouldn't think there'd be much change in the technology of those. I know some of the newer models have all kinds of extra features, but we're happy with the choice of cycles/temps on our current unit. If we do replace it, we'll probably go with something about the same level, so extra features aren't really an issue.
What I don't want to have happen is that I sink $$ into the seals, rollers, etc. and then in a month have the motor or something else fail and end up having to get a new unit anyway.
I guess my main concern is the motor. Assuming I don't see any obvious problems, is it reasonable to expect it to continue functioning, or at 16 years is it already on borrowed time? As a test, could I run the motor without the belt & drum to see if it runs smoothly, or will a "no load" run damage it? Are there any other things I should look for and/or test on it to see if it's worth keeping?
Any suggestions would be appreciated.