Humidifier water seems to run constantly

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Old 11-01-12, 12:02 PM
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Question Humidifier water seems to run constantly

We just moved into a house and this is the first time I've ever had a whole house humidifier. I turned it on for the first time yesterday afternoon but ended up turning it off last night. I can hear water constantly draining into our sump pump which I assume means it's constantly running through the humidifier. From what I've read it sounds like it shouldn't do that. So how do I go about finding out what is wrong? There are wires running from the solenoid into the furnace. I have a Rheem Classic 90 Gas Furnace and the humidifier is a Carrier model 912C056BPH.

Please help!
 
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Old 11-01-12, 05:28 PM
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While the humidistat is calling for humidity the humidifier will run and water will run. The humidifier SHOULD be wired so that it only operates with a call for heating. How is it wired currently?
 
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Old 11-01-12, 08:51 PM
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If the water if flowing when the furnace isn't running, then it's wired wrong. otherwise, if it's wired up right, a small stream of water is correct.
 
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Old 11-01-12, 09:36 PM
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Since I'm not exactly sure what I'm talking about, I thought pictures might help....



So, 2 brown wires are coming from what I think is the solenoid to red caps B and C. At B, it connects to the red wire going to the furnace. At C, it connects to a red wire which I think is going to the humidistat. And at A is the connection of a white wire that runs from the humidistat to the furnace.


Here is where the wire that I've labeled "to furnace" connects with other wires. Not exactly sure of what's connecting with what... The red and white wires are both connecting to other wires that go to the furnace but there are also wires from those connections that go either to our thermostat and/or the outside unit.



Does that help?
 
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Old 11-01-12, 09:43 PM
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nope, it does not do anything. We can't decifer those wires in a picture. If you feel there is a problem and can't figure out how it is wired then you will need to call a pro.
 
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Old 11-01-12, 09:54 PM
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Does the water stop when the furnace isn't running?
 
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Old 11-02-12, 08:34 AM
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No, the water doesn't stop when the furnace stops
 
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Old 11-02-12, 09:01 PM
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Then it's not wired up right.

What is the model # on the furnace?
 
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Old 11-03-12, 07:53 AM
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The model # is RGRJ12ERAJS
 
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Old 11-03-12, 08:53 AM
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I am not able to find the wire diagram on this model, (Rheem is very tight lip w/ their diagram online) and can you take a photo of the diagram on back of the blower door?

Also, what model is the humidistat?

Try to trace wire itself to the furnace.
 
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Old 11-03-12, 10:29 AM
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Here's the diagram from the back of the door



Here's a full size image you can look at...
wiring | Flickr - Photo Sharing!

The humidistat just says "deluxe humidistat".


And the white wire from the humidifier is connected to the blue wire that goes to the furnace and the red goes to the red. The blue and red wires and where they are wired to on the board are pictured below
 
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Old 11-03-12, 02:50 PM
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I am not seeing the "HUM" on your diagram.

You'll have to run new wire. The red wire from the humidifier, you'll have to wire that to W on the board.

Make sure the red wire from the t-stat stays on R on the furnace.
 
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Old 11-03-12, 08:01 PM
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Thanks! I'll give that a try!
 
 

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