When my humidifier is hooked up the furnace makes a sheet metal echo click when it turns on and off. Furnace salesman came out and we disconnected the wires at the solinoid and it no longer makes the noise. He suggested it is a bad solinoid. I thought maybe it vibrates when it turns on and off and causes the sound. I took the screws out that hook it to the plastic housing so it doesn't touch anything on the furnace and then hooked the wires back up and I get the noise again. I touched it gently until the furnace power went off but felt no vibration.
I am wondering if the humidifer is wired incorrectly.
Installers took the wire from the humidistat (it has 2 wires (red and white) and ran them first to the solinoid which has 2 wires. (My old furnace had the red wire hooked up to one of the solinoid wires and the white wire hooked up to the other one.) They hooked both Aprilaire solinoid wires to the white wire by splitting the white wire. The red wire was not cut. The wires then go to the inside of the furnace. Red wire is hooked to one terminal and white wire to another.
I know the solinoid is a magnet that opens and closes. I get water running through the humidifier when the blower is on and it stops when the blower is off. Therefore, the solinoid is working properly. I don’t see how it can be causing the noise. Also, when it was hooked up, the salesman turned off the humidistat and I still got the noise indicating that when the humidistat is off there is still an electrical connection—seems odd to me. Could it be incorrect wiring?
I am wondering if the humidifer is wired incorrectly.
Installers took the wire from the humidistat (it has 2 wires (red and white) and ran them first to the solinoid which has 2 wires. (My old furnace had the red wire hooked up to one of the solinoid wires and the white wire hooked up to the other one.) They hooked both Aprilaire solinoid wires to the white wire by splitting the white wire. The red wire was not cut. The wires then go to the inside of the furnace. Red wire is hooked to one terminal and white wire to another.
I know the solinoid is a magnet that opens and closes. I get water running through the humidifier when the blower is on and it stops when the blower is off. Therefore, the solinoid is working properly. I don’t see how it can be causing the noise. Also, when it was hooked up, the salesman turned off the humidistat and I still got the noise indicating that when the humidistat is off there is still an electrical connection—seems odd to me. Could it be incorrect wiring?