Hot air blower won't turn off?

Hot air blower won't turn off?

PostBy: 903ASP On: Fri Apr 12, 2013 12:59 am

Hi guys, i have a prob i hope someone may help me solve. My Alaska Channing 3, model 140's hot air blower won't shut off. Checked thermo, and wires, and all seems well. Tried turning thermo off, and even disconnected wires, but blower keeps running. Turned control to minimum, and no effect there either. Blower won't go on, after i start initial fire, until heat from coal reaches a certain temp, but then never shuts off. Temp in room goes well above shut off point. So, question is: What is causing blower to constantly run, when it should shut down? :)
903ASP
 
Stove/Furnace Make: ALASKA
Stove/Furnace Model: CHANNING 3, MOD. 140

Re: Hot air blower won't turn off?

PostBy: dcrane On: Fri Apr 12, 2013 6:28 am

I guess a couple of the first questions would be...
#1 did it ever work for you or is this your first time using it?
#2 is it a new stove or one left in a house you just bought or did you pick it up used someplace?


After a quick review these elements below are what first come to my mind
"Options: Thermostat System, Fan Limit Control, Barometric Damper (must be installed on power vent and chimney models)"

I also think because of the nature of these types of stoves cleaning, vacuuming and blowing out things like the blowers and grate from time to time with a compressor is critically important, the fly ash produced can invade places that might baffle your brain at times and with all the electronics, blowers, motors, rheostats, etc. its very important to clean it often.
dcrane
 
Hand Fed Coal Stove: Crane 404

Re: Hot air blower won't turn off?

PostBy: blrman07 On: Fri Apr 12, 2013 8:34 am

The convection blower is usually controlled by a fan temp switch located on the hot air plenum. Take the cover off and see what the little slides are set at. That controls the start and stop function of the blower fan based on the temperature of the air in the plenum.

Photo of settings would be nice.

Rev. Larry
blrman07
 
Hand Fed Coal Boiler: Bucket a Day
Hand Fed Coal Stove: Vigilant Casting 2310
Baseburners & Antiques: rebuilding a 1906 March Brownback Double Heater, using a UMCO 1920's Pot Belly stove in the church
Coal Size/Type: Pea/Nut/Wood in the VC and anything that will fit in the Bucket a Day. It's not fussy.

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Re: Hot air blower won't turn off?

PostBy: 903ASP On: Fri Apr 12, 2013 11:51 am

blrman07 wrote:The convection blower is usually controlled by a fan temp switch located on the hot air plenum. Take the cover off and see what the little slides are set at. That controls the start and stop function of the blower fan based on the temperature of the air in the plenum.

Photo of settings would be nice.

Rev. Larry
dcrane wrote:I guess a couple of the first questions would be...
#1 did it ever work for you or is this your first time using it?
#2 is it a new stove or one left in a house you just bought or did you pick it up used someplace?


After a quick review these elements below are what first come to my mind
"Options: Thermostat System, Fan Limit Control, Barometric Damper (must be installed on power vent and chimney models)"

I also think because of the nature of these types of stoves cleaning, vacuuming and blowing out things like the blowers and grate from time to time with a compressor is critically important, the fly ash produced can invade places that might baffle your brain at times and with all the electronics, blowers, motors, rheostats, etc. its very important to clean it often.


The stove was here, when i bought the place, 3 yrs ago D/07. Other than playing with settings the first few weeks or so, to get it where i was comfortable, it has worked perfectly. This just started 2 days ago. I only run it when i'm here, and only when i'm awake, so it doesn't get that much use. It's a back up to my LPG, more or less. No chimney, and flue pipe goes straight up through roof. I clean it every spring.

I've eliminated thermo, so i will see if i can check other items :)

Sorry about the clarity of pics, stove is in corner of room, and is hard to get my "old fart" body wedged in there.....lol
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903ASP
 
Stove/Furnace Make: ALASKA
Stove/Furnace Model: CHANNING 3, MOD. 140

Re: Hot air blower won't turn off?

PostBy: freetown fred On: Fri Apr 12, 2013 4:24 pm

Probably the biggest problem. All the sporadic use. Got er confused. That might sound stupid but I'm serious. They're made to run constant. :(
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Hot air blower won't turn off?

PostBy: 903ASP On: Fri Apr 12, 2013 5:18 pm

Well guys, i found fan/limit switch control, and put volt/ohm meter across contacts, and when switching between auto/manual, ohms would increase greatly, so i assumed that's working ok. Then did same for fire rheostat, and that too increased, as i turned control from low, to high. So assuming controls were working correctly, i took D's advice, and cleaned/vacuumed the hell out of it. Started new fire, and i'm happy to report, that stove is now working like a champ :) My sincere thanks to you guys, for giving me some great info to work with. Keep up the great help. You guys are a great asset to the site :punk: :dancing: :clap: :up:
903ASP
 
Stove/Furnace Make: ALASKA
Stove/Furnace Model: CHANNING 3, MOD. 140

Visit Lehigh Anthracite