Need help with broken chiller

[knap_123]

My chiller is not working right. I set the temp for 70°. But the display temp will climb to a 100° or higher. While my water temp will drop 50° or lower. What is the problem? If it's not a simple fix I was looking at this. http://m.ebay.com/itm/AC-110V-220V-...Y-Aquarium-Sous-Vide-/271782572156?nav=SEARCH

 

[ngvu1]

Yes, I would do that. I remember someone was selling a chiller with the exact problem and basically it will run until you cut the power :); There are cheaper solutions. I used both before
http://www.ebay.com/itm/LED-Digital-110V-Temperature-Controller-Temp-Sensor-Thermostat-Control-Relay-US/361270663293?_trksid=p2047675.c100005.m1851&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=20131003132420&meid=aee44fcd223b4465b503c8fd9929956e&pid=100005&rk=2&rkt=6&sd=271782572156

I would use this one since the probe is not metal which will break within 1 or 2 years
http://www.ebay.com/itm/Digital-STC...919030?hash=item20c5c422f6:g:4PAAAOxyGqZSZd-G


The only problem is they are in Celsius :); a google search will show you how to convert Celsius to Fahrenheit . 25.6 or something was my setting back then :)

 

[sidneyreefer]

I work on commercial chillers for a living. That being said aquarium chillers are very different. Same theory, though. It sounds to me like thermostat on the unit is stuck closed . Call the mfg. and see if they can send you a new thermostat

 

[knap_123]

I ordered a thermostat off eBay. Going to build a DIY temperature control.

 

[knap_123]

Heres a video of the build I'm going to copy.