How long should the heavy wash cycle run? I have been using the regular cycle but decided to use the heavy duty when washing the filters from my range hood. Should it take over 2 hours?

SOURCE: admiral mega 22 plus heavy duty 2 speed washing machine

I think my set i just got today used is a 3 speed.Seems to be alright for now.There is a thing i was told called a harmonic balance it might be off or messed up.Tina.A(nc)

SOURCE: Amana Heavy Duty Extra Large

my heavy duty 7 speed motor cut off because of over heating and the belt was changed can you suggest a suitable model of fan belt for it. ?

SOURCE: stopped mid wash cycle,no drain,no spin, will not go to next cycl

water pump blocked with nylon stuffing from old pillow.removed front panel from hinges under the lid. water pump at the right hand corner removed hose then removed 2 cups of nylon threads and stuffing forced into pumps small openings where it was compacted to a solid mass.

SOURCE: kenmore heavy duty 2 way tumble washing machine

You may have a broken inner tub spider. Check for play between the inner drum and the outer tub by moving the inner drum up and down.
If there is excessive play, the spider is broken causing an unbalanced load and therefore no high speed spin can be achieved.

In this case the inner drum would need to be replaced, which means taking the machine almost completely apart. A good tech can do it in about 1.5 hours.

SOURCE: washing machine won't spin dry

If this is a top load clothes washer, almost all units will not spin if the door is open during the cycle time when it should be spinning. If the door is closed, check if the door safety interlock is broken (on most washers, you will see a pin on the door pressing into a little depression)

If these things check out, you probably have a failed transmission deep inside the clothes washer. Fixing that is non-trivial.