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Old 01-07-2012, 08:07 PM   #16
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Carrier Weathermaker 8000 thermostat out, air blowing


It's sitting on top of an upflow furnace...

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Old 01-07-2012, 08:11 PM   #17
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Carrier Weathermaker 8000 thermostat out, air blowing


Code 33 refers to the red circuit between harness PL7 terminals 1 and 7.




See note 10...

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Old 01-07-2012, 08:20 PM   #18
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Carrier Weathermaker 8000 thermostat out, air blowing


How do I open it up to clean it?
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Old 01-07-2012, 08:29 PM   #19
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Carrier Weathermaker 8000 thermostat out, air blowing


If yours is sitting on top of the furnace like in the pic provided by Houston than the inside will look like this. Note the white drain pan. Your's may be black or whatever color but you will have to cut that pvc pipe connected to the drain pan, most likely 3/4" and then use a coupling and glue to put it back together once done with the coil. You remove the metal exhaust pipe attached to the furnace so you can get to the evaporator, remove the front panel by removing the screws and you can simply pull the entire "guts" of the coil out. Be very, very, very careful to not bend those copper refrigerant lines. Work gently and smart. There may be a screw with a holding bracket holding the inside pan in place that needs to be removed.

The dirty part will be the underneath as the air flow is upwards.

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Old 01-07-2012, 08:39 PM   #20
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Carrier Weathermaker 8000 thermostat out, air blowing


this is what I have (humidifier)
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Old 01-07-2012, 09:09 PM   #21
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Carrier Weathermaker 8000 thermostat out, air blowing


The lockout is unrelated to your humidifier.
Post a pic of the front of the furnace and we may see an evaporator coil.
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Old 01-07-2012, 10:20 PM   #22
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Carrier Weathermaker 8000 thermostat out, air blowing


more pics
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Old 01-07-2012, 10:34 PM   #23
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Carrier Weathermaker 8000 thermostat out, air blowing


That's it. The black insulation on the bigger line and the exposed smaller copper line lead to the evaporator, like in the pic I posted. Be very careful with those tiny coiled copper lines of the thermostatic expansion valve, refrigerant metering device. You do not want to crease.kink.bend any copper or you will be paying some money to a contractor.
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Old 01-07-2012, 10:38 PM   #24
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Carrier Weathermaker 8000 thermostat out, air blowing


and that white pvc is the main drain which would need to be cut. I'd cut it after the first two 90's, off to the left side of the unit, where you have a few inches of straight pipe without any fittings so as to be able to get a coupling back on with ease.
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Old 01-07-2012, 11:08 PM   #25
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Carrier Weathermaker 8000 thermostat out, air blowing


Those pics are from very close up but this appears to be an uncased coil inside of metal ducting.
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Old 01-08-2012, 06:23 PM   #26
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Carrier Weathermaker 8000 thermostat out, air blowing


In ran into a I fish with at church today and he fixed a few heat pumps in his day. I ran my situation down to him and he was stumped as to why I could not jump start the system and the thermostat. He suggested that I explore smaller jobs before I open up and clean the coils. Anyway, I took some pics of my system where I could not reset the a sensor button. I can't push it down. Can someone tell me if it is and what part it is?
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Old 01-08-2012, 06:35 PM   #27
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Carrier Weathermaker 8000 thermostat out, air blowing


I also told the guy from church that this part was making noise a few weeks ago. The center pin was kinda in the center of the pole in the wheel, I pushed it further in. I can spin the wheel easily and wondered what its for.
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Old 01-08-2012, 07:08 PM   #28
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Carrier Weathermaker 8000 thermostat out, air blowing


That spill switch and inducer will spit out a code 31 when problems occur.
The wiring to their sensors are yellow and orange. Your tripping sensor is connected to red wires in the diagram.

I agree with your fishing buddy. Cleaning that coil will be tough.
Probably time to call a pro.
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Old 01-08-2012, 11:06 PM   #29
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Carrier Weathermaker 8000 thermostat out, air blowing


Quote:
Originally Posted by Doc Holliday View Post
This is a high temperature limit switch. Note there is no button on this. It is a temperature sensitive metal, like a thermostat in your vehicle's radiator, that expands and retracts. Once they cool down they usually reset themselves but many do not as they go bad and simply need replacing.

You will only see the round back of this switch, located on blower housing and in the burner area as well but it also has two wires to it. It or they rather should also have continuity through them until they trip.

Found this switch... well my equivalent (.HH12ZB--- is the name of the sensor) Its above where the flames come out. I powered off the unit, pulled one of the red wires and taped against the back of the unit. I then reconnected the wires, put the panel back on and the 33 code was cleared away. Put back on the stat and everything was working again. Only problem is a wheel that spins is making loud noises and i will have to replace. Thanks everyone for Saving Saveme$ money.
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Old 01-08-2012, 11:16 PM   #30
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Carrier Weathermaker 8000 thermostat out, air blowing


I guess I will start a new thread since my furnace is back up and running I need to replace the part below. It spins like it should right before and during heating cycle; however, it wobbles and makes a lot of noise. What do I need and what would it cost to replace?
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