Keg cooler dropping below freezing (DKC644BLS)

This solution probably costs more than you care to spend on the problem, but you can buy an external temp controller like this one:
http://www.amazon.com/gp/product/B0002EAL58
You run the probe into the fridge and plug the fridge into the controller. Then the controller will only turn on the fridge if it gets warmer than the temperature you specify.
You might be able to find it cheaper on ebay, too. I'm using this on a kegerator and can keep my beer at a consistent temp.

try changing kegs sounds like the tube in the keg is broken the keg has a tube that runs to the bottom of the keg inside and u push air into the keg to push beer thru that tube and into a cool glass and down to ur gulletbut it sounds like u have a defective keg or an empty keg

The proper temperature should be between 35 and 42 degrees. Here are some things to try:

• If your refrigerator temperature is closer to 35 degrees, try turning the temperature up slightly.
  
  
• If the temperature is too low and you can't make it warmer by adjusting the thermostat, you probably have a defective thermostat.

two things to check first at what pressure is the regulator set too? should be i thaink about 4 pounds. also what is the temperature inside of the cooler could the lines be some what frozen?

It can take a very long time to get a keg of beer down in temperature. The heat transfer from a keg is slow due to the lack of air circulation inside the keg. You should also check your condenser coils, make sure they are clean. Door gasket should also be in good repair. Hope this helps.

when was the beer hoe last cleaned? also have you checked the regulator on the tank......disconnect all hoses, and make sure all cloggs are cleared

Keg's are normally pressurized at 13 psi. If you only set yours at 8 psi then you are going to cause problems. You should always start at least the same psi that the keg is set to. If you can talk to the keg company as they all differ some. Common problem is to lower the psi which will cause foam until you reach about 1/2 full or a little less then you should get less foam but your beer will become very flat. Too much pressure is usually better than too little, even with too much pressure you'll see the beer come out fine but will start to foam when hitting the glass/pitcher. Also note that the coupler's that Danby use are very cheap, check the CO2 vale (between CO2 line and coupler) to see if there are any cracks or anything.

Same problem here. Can you give me their number? [email protected]

Keep a thermometer handy. (adjust temperature control knob accordingly)
Periodically monitor temperatures inside your cooler. (adjust as necessary)
Keep the refrigerator door closed as much as possible to avoid temperature fluctuations

The temperature of the refrigerator compartment is
controlled by adjusting/setting the thermostat control
knob, located on the ceiling of the refrigerator
cabinet.
To start the refrigerator, and achieve maximum
cooling quickly;
• Turn the temperature control knob (using a coin
or screwdriver) clockwise to the furthest
(maximum) setting on the darker blue section of
the graduated control dial.
• Allow the refrigerator to run at this setting for 3~4
hours.
• When maximum cooling is achieved, turn back
the temperature control knob setting to the 2:00
o'clock position on the graduated blue control
dial.
• Correct cooling temperature is a key factor to
consider in storing and dispensing draught beer.
• Optimum temperature for serving draught beer is
between 34ºF ~ 38ºF.(1ºC ~ 3ºC)
• To maintain temperatures ranging between
34ºF ~ 38ºF.(1ºC ~ 3ºC) We recommend the
thermostat knob be positioned at the "2:00
o'clock" setting on the graduated blue control dial.
• To turn off the refrigerator, (no cooling) rotate the
control knob to the "0" position.

Mine did this as well. last night the diplay read "LE" and the temp controls and the C/F buttons were unresponsive. I called Danby. Although I was on hold for 30 minutes, when they did answer they were very helpful. As mentioned elsewhere here, the touchpad has gone bad. You can order it right over the phone. The price of the touchpad is only $2 and shipping is $7. I ordered 2 of the touchpads (why not, right?) and the shipping was still $7 for the both. # for Danby is1-800-263-2629. Make sure your phone is charged.