Quote:
Originally Posted by thundercleese  HUM2 goes through a 24 volt electronic relay and then to the humidifier. |
Relay? is it this one below?
If you do have this, this is not needed since the IAQ takes care of turning on and off the unit as needed.
Quote:
| What I noticed is when I cut power to the furnace and disconnected the wires from the humidifier to inspect the water still ran through the humidifier, could that point to a bad solenoid in the humidifier, or would that stay open even if power is disconnected? |
sounds like the valve is stuck open. There is a spring inside of this, and a plungger. it will close when the power is off.
But go ahead and take it apart to clean it.