Superior/Bev-Air Kegerator diagnosis

We bought a used Superior Kegerator off of Craigslist last week. I have read that this is actually a Beverage-Air BM23 sold under Superior's label which is the only reason I gave the green light to the purchase , as Beverage-Air seems to have a good reputation. However it's not cooling properly. We can fix it ourselves (or at least my husband can, he's the mechanic, I'm the carpenter) if we can track down the problem. What I believe to be the evaporator fan is constantly coming on, like every 5-10 minutes and the unit is struggling to get down to 45 degrees F even when the temperature control is on 9 despite the fact that the former owner told us he would have ice in a keg at the number 3 setting. We have no reason to doubt him, however the unit probably set up for at least a year if this makes any difference. We plan to replace the temperature control (which seems to have the thermostat as part of it best I can tell.) I would just if possible like some other opinions before we start chasing down and replacing bits piecemeal. Although given the price of one of these units new, even if we put 3 or 4 hundred into it I'll consider we've gotten a good deal (otherwise it's in very good shape.)

Related Posts:

• 
  Trane xl 90 furnace with ignition problem
  
  Trane XL 90 Furnace with ignition problemTrane XL 90 gas-fired condensing furnace Model TUC0808942A1 Ignition controller White Rogers Model 50E47-060 Digital Thermostat RiteTemp 4 days ago, the fu...
  


• 
  Tempstar furnace diagnosis
  
  Tempstar furnace diagnosis?Here is my background info before I begin: #1 living area: south Alabama #2 ambient temperature: oppressive humidity heat during the summer but very mild during the wint...
  


• 
  Whats the best water softenerconditioner value out there
  
  Whats the best water softener/conditioner value out there?I seem to get more confused the more I research getting a water softener/conditioner for my home. My question is who can you trust, and wh...
  


• 
  Rvonan generator repair
  
  RV-Onan Generator RepairOur Onan 5500 gas generator will not stay started. It will start as long as the start button is pushed down, as soon as you release the button the motor shuts off immediate...
  


• 
  Watchdog message 99 sundance spa where to begin
  
  WATCHDOG message, '99 Sundance spa, where to begin?Hi, I bought a house with an old hot tub ('99 Sundance). I had an incredible amount of useful help on the electrical forum previously when I had...