I am using two 110 volt controller for a beehive heater. One is for heat and the other is for cooling. One works as it should, but the other is erroring out. I am satisfied that the wiring is correct with hot wire on number one and ground on number two. I have also checked the voltage which is running 120 - 122. I’ve checked the grounds with the ohm meter and it appears to be good. I even disconnected the bad one and connected to the wiring of the one that was working properly and it still errors out.
Now here is the kicker, I ordered four 110 vote units so I had two that were still in the box. I hooked them up to the positive and negative leads of the one that was working and they also errored out. There’s just something inside of me that says that I don’t have three bad controllers even though only one works properly.
On the one that is erroring out, it will allow me to set centigrade or Fahrenheit as well as the other options but I don’t hear the relay kick in when it gets power and it will revert back to the “Er” mode in just a few seconds .
Any help would be appreciated. Thanks.
Hello,
Just in case, please refer to the wiring of ITC-1000. Terminal #2 is connected to the neutral line. The heating and cooling ends also need to be connected to the power supply.
If the ITC-1000 still triggers the ER alarm, please check if the probe is properly connected to #3 & #4. Is the probe wire loose or damaged?
Thank you so much for your quick response. In my testing of the different controllers, I disconnected 3 and 4 to where only the positive and neutral were hooked up. I will try again with number 3 yes, thank you and 4 hooked up. Thanks
I have tried it with the thermostat hooked up as well as the heating and cooling, and I have tried it without any of that hooked up, except for the hot and neutral being in 1 and 2 respectfully. I have transferred the heating over to the controller that seems to be working properly and it is heating as it should and cutting off as it should. Unless you have something else for me to try, I’ll try to replace these 3 controllers with other ones and see if they react differently. Thank you in advance for your help.
May I know if, in the latest test, the controller operates properly when the probe is connected to ports #3 and #4?
Please note that if the probe is not connected to ports #3 and #4 during testing, the ER alarm may be triggered.
Please refer to the description of the ER alarm in the manual.
Tania, I will connect the thermostat to number three and four and see if that solves the problem. I did not understand that the thermostat must be installed for the controller to operate correctly during testing. I’ll let you know today or tomorrow if that solved the problem. Thanks again for your quick response
It works! It works!
I am embarrassed that I didn’t know that the thermostat had to be hooked up into 3 and 4 before it would not error out. Thank you for your patience.
Thanks for letting me know. I’m glad we could figure it out together 
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