Its stops when it reaches in 39 minute the function set on cottons what is the problem

You need to go into the maintenance menu.

Take out the red safety stop key, hold down the "start", "stop" and "Enter" buttons, keep holding them down while putting the red key back in (a bit tricky), keep holding the keys down until you see "Maintenance menu" scrolling (this will happen as long as you didn't let go of the three keys).

Initially when you put the red key in it'll might show software version etc, after a few seconds it'll change to maintenance menu. Use the speed UP and Down buttons on the console or arm to scroll through menu until you reach "FUNCTIONS" press enter.

In the functions sub-menu, depending on what year model/software version it has, it should have a selection called "Sleep Timer" if so set it using up down keys to "ON". If your model doesn't have "sleep timer" listed (i.e. a newer model) it's now just called "DISPLAY" and in that case set it to "OFF". That should fix it.

Press Stop, to go back. If you want you can disable the key tone/training beeping as well in the "functions" sub-menu of the "maintenance menu".

To exit press stop repeatedly until you're back to the normal display.

This pacer function is used to set or regulate the rate of timing. It sounds an electronic tone at the selected rate for maintaining the pace of the activity in beats per minute. You can increase or decrease the rate in increments of 5 beats per minute. For example spinning on a stationary bike at 55 cycles per minute you would set the pacer at 55 beats per minute.

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The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for about 5 minutes and try again.

It appears to be a fast cotton wash (60 minutes).

Certainly not a program for washing "Flash Cotton" which is an expolsive mix of cotton, nitric acid and other reagents!

If it's cooling to the temperature that you have it set for or the comfort level you have it set for, it's normal for it to cut off, once it reaches that temperature and holds it for 5 minutes. When the room temperature rises above the comfort level you have it set for, it turns back on. If this is what you are describing, it's functioning normally.

When looking at the face, you have 4 pushers. Top left is for regatta function countdown. Top right is regatta function start-stop-reset. Bottom left is Hours-Minutes and Nite Lite. Bottom right is regatta function "catch up". Assuming that you want to set Hours and Minutes, press and hold the bottom left for 3 seconds...Hours will start blinking, press the pusher successively until the desired hour is reached. Then wait until it stops blinking. To set minutes, press and hold for 3 seconds, the hours will again begin to blink, then release and re-press for an additional 3 seconds and the minutes will blink, Then press successively until desired minutes have been reached. Stop pressing and wait until the blinking has stopped. Once it has stopped blinking your time has been successfully registered. Good Luck. Hope this helps!

Unfortunately your watch do not have reverse action, so, you have to go all the way forwards till you reach designated time again.
One more way how to set the right time is to disconnect the battery and wait till the real time reaches the hands of your watch, then put battery back and set again. If watch has a STOP function (crown pulled out), then you don't have to disconnect the battery- just pull out crown and wait.
By the way: pushing the button in accelerates minute hand constantly, but if you'll push the button rapidly, it will move mimnute hand bit by bit. Use this feature to set desired time more precisely.
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