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Re: Kenmore Series 70 Dryer cuts off after a few minutes
The bearings in the motor have probably worn out. Disconnect the motor and take it out of the dryer. See if it turns roughly or not at all by hand. Also try and move the post left to right and up and down and see if there is play in it. It should move very little if at all in those directions and should spin freely if it's good.
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The cycling thermostat must also be replaced when replacing the thermal fuse. The cycling thermostat's failure to cycle off the heating element results in overheating of the dryer which consequently blows the thermal fuse open.
Replacing only the thermal fuse should the dryer stops running and
fails to start will result in its premature blowing or even the thermal
cut-out (cut-off) located on the heater duct. Like the cycling thermostat, the high-limit thermostat must also be replaced once the thermal cut-out blows open. Refer to the parts diagram in the link below and look for item numbers 31(thermal cut-off), 34(hi-limit thermostat), 39(thermal fuse), and 41(cycling thermostat.
You should inspect for lint Might be a locked wheel or idler, Could be the belt is broken. No way to know without checking. Unplug the dryer and take it outside if you can. Remove lint from vents. Remove lent from inside. Use HVAC quality Zoomspout oil to lube the rollers and idler More here
Reach in and turn the drum. It should be very easy to turn. If it is hard to turn you need to determine if it is : The rollers The idler If you have this crappy idler chunk it in favor of the one above with a wheel. The glide band and felt The motor. I have a manual
The noise is coming from a moving part. There are only a few that normally cause a problem. Also the dryer drum not turning freely is what broke your belt. Here is what I would replace. Drum rollers, Drum slides and idler pulley. You can check these parts before you replace them. If the drum rollers don't spin real easy, replace. If the idler pulley does not turn easy, replace. If the drum slides are worn, replace. Your model may be one with a front drum bearing. If it looks worn, replace.
You may be able to take dryer apart, try turning drum. Listen for the noise and notice if the drum is hard to turn. If so, you may be able to determine if the problem is in the front or back of drum. Keep on mind that the noise might have been the belt slipping due to the drum being hard to turn. Either way, when you have it repaired, it should run with the noise. Good luck.
there are 2 drum rollers at the back of the dryer. shut off power, pull drum and you will see 2 rubber wheels. there is a little plastis triangle that keeps the roller in place. try spinning the rollers . they probably will not spin too freely. remove triangles ,inspect inside of roller the stainless steel bearing may have gunk on it try to clean off . also check shaft roller rides likewise remove any debri use a little rubbing alcohol to remove gunk. also check the idler roller that routes the belt for the same things. good luck