Alright.. I need some help. My TK3 just stopped making hot water. Here are some facts about what is going on...

#1-No blinking LED unless the hot water is turned on at the faucet.. then it just blinks once every few seconds.. nothing continuous.
#2-Fan blows when hot water is turned on at the faucet.
#3-The unit was working fine this morning after I descaled it yesterday. We have done 2 loads of laundry and my wife took a shower this morning and it was all fine till now
#4-Initially I found a lose wire that may have caused the fan to not blow. After I wiggled it a bit the fan now works..

Does any one have any suggestions?

Mike