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Re: mav7600aww no hot water
It sounds like the hot water supply is interrupted. This can be due to at least three potential items which are easily checked.
First, make sure the hot water supply is turned on at the nearest faucet. Second, make sure that any in line filter in the hose supplying the hot water isnt clogged. Finally make sure that the hose itself isnt clogged as hot water can carry alot of chemicals in solution but as the water cools the chemicals come out of solution as solids which will gum things up.
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the machine control opens both hot and cold water valves and then the machine sensor monitors this through a water temp sensor in the fill line till a certain amount of resistance is encountered so it could be a faulty sensor,machine control board or also if a certain type of wash is selected it wont use any cold water at all during the whole wash cycle
If your machine is a FAV6800AWW or FAV9800AWW the (upside down u and f) may be a “NF” for no fill error.The washer has tried to fill the machine with water and has sensed a water fill issue.The control board has shut the wash cycle down with an “NF” error to the display because of excess time to complete the water fill portion of the wash cycle. Will the machine complete the cycle with Hot water only or Cold water only?I would do a Quick Wash cycle just to test with an empty wash basket. Regardless of the above test and assuming you have good water pressure for both Hot and Cold supplies to the washer I would do the following. Close the water source valves to the washer and remove the Hot and Cold hose connections at the back of the machine and check for clogged inlet screens.If the water inlet screens are free of restrictions I would go into Service Mode and turn on the Hot and Cold water valves on one at a time and make sure the tub will fill with about 2 inches of water in about 3 minutes in service mode.Check both Hot and Cold inlet valves individually see page 16 of the SM Board Output Test, enter service mode and do the function test for both Hot and Cold Water Valve’s.If the inlet screens are clean and you have water fill restrictions in service mode we may need to look at replacing the water inlet valve assembly.You can turn on the drain pump in service mode to empty the tub or just start a wash cycle and the machine will empty the tub. The Service Manual for reference. Sears Parts Direct for reference.
In owner's manual, go to Machine Information/Care and Cleaning/Cleaning the Inside of Your Ecosmart for a total hot water wash fill:
Press POWER button
Press and hold Favorite button for a few seconds until you hear two quick beeps.
Select Permanent Press cycle.
Select HOT wash. (Yes, you can do this in this mode.)
Press Favorite again to store the selections.