The reason you smell burning is because the belt is stretched and worn and is slipping. You simply need to replace the belt. Here is the belt you need:
Hoover Mach 4 Belts
There are two reason you could be smelling a burning smell-
1. The belt is too stretched out and needs to be replaced. This causes it to slip when the vacuum is on and will create that type smell. You can avoid stretching and having to replace the belt to often by releasing the belt after each vacuum.
2. There may be hair or other debris stuck around the rod that the belt is attached to. Can be avoided by checking after vacuuming.
Hope this helps
SOURCE: burned smell
If the motor slowed down this would indicate a bad motor. not cost effective on this model to replace unless under warranty. it is not uncommon these days to see a motor go bad every now and then.
What are the first 4 digits of your serial number? this would be the month and year of mfr. even without a receipt, a warranty service shop should be able to assist you.
I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_b96ba3f038cf317c
SOURCE: i have a hoover mach 5 multi-chamber cyclonic
if its giving off that strong smell then the motor is bad. probably caused by not keeping the filters clean. on any bagless machine one has to clean the entire vacuum after almost every use to keep the unit operating correctly
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My hoover canister vac S3765-040 is giving off a burning smell when operated. What do I do?
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