Electrical Questions? Ask an Electrician Online.
Hi, I'm Mike and I'll be assisting you. Please stand by while I review your question.
Is this a DSL type control?
It is an Intellietouch DHC. Your issue is caused by the control and the receiver being on different phases of the service. When a 2 pole load is in use the signal will jump phases and work. When no 2 phase loads are in use the signal can't find a path to the receiver. To correct the problem you need to install an amplifier bridge at the panel.
Your electric service has 2 phase wires. Half of the house on one and the other on the second one. Signal on either can't jump without a pathway. the use of a 240V appliance will provide a path when in use, most times. The only way to correct the problem is to install a bridge. See the attachment.
It connects to breakers in the panel. The installation is very simple as the instructions will show.
The codes are sequential at the controller. As I said, the signal may or may not reach the receiver depending on factors that the Bridge will correct. I've done many home control installations and can only give you the benefit of my experience.
Here's the wiring diagram