I installed a 3 way HS210 recently, with the other switch in the circuit being the existing "dumb" switch.
Both switches work fine and can turn the lights on and off. However when selected off, the lights which are LED, remain on but very very dim.
The HS210 was installed using the instructions, with two travellers, a load, a neutral and ground.
The existing dumb switch was wired with 2 travellers and a load, and was not modified.
Any suggestions ?