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Old 04-29-2014, 06:46 AM   #1
JandC
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2014 Furnace Problems

Just spent 30 minutes searching this issue on MOC and educating myself. Blower comes on for about 30 seconds and furnace won't ignite, blower shuts down. No error codes on display. When this first happen a couple days ago I went to Four Winds RV which is 1/2 mile down the road. They are an authorized Keystone (Montana) dealer. They determined I did not buy the unit there and said they were 6 weeks out. Service manager encouraged me to remove my Dometic furnace and bring it to them and they would try to work it in. Needless to say that is not going to happen. Checked propane and even switched bottles. One full and one 3/4 full. Stove still works. Shut off breakers/fuses to air and furnace, turned back on. Still got fan for 30 seconds, no ignition, shuts down. Finally did system reset at thermostat. Now works fine. We are 2 weeks from pulling out for trip to Seattle. Wondering if furnace will keep working or there will be trouble down the road.
 
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Old 04-29-2014, 07:43 AM   #2
K0LCB
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Sounds like someone tried to work furnace without propane
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Old 04-29-2014, 09:06 AM   #3
Glenn the fifth
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I am guessing the "system reset" at the thermostat reset whatever was "hung up" causing you to not get propane flow. When it was trying to light did you hear the "clicking" noise of the igniter trying to light the propane? Could be either an intermittent igniter problem or potentially a thermocouple issue not allowing propane flow. With any luck it will no longer be an issue and was just a passing "gremlin". Have to love all these electronics huh? -Glenn
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Old 04-29-2014, 09:22 AM   #4
Rondo
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Joe-- It could also have been possible spider webs in the burner and any movement may have freed it enough to ignite. IF the furnace had not been lit before that could have been the problem. I guess Four Winds RV is a dealer not to contact if problems come up. You might want to contact Keystone on Four Winds attitude and the Service Managers encouraging idea!
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Old 04-29-2014, 09:24 AM   #5
JandC
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At one point this morning I had the cover off outside and had checked for anything obvious....loose wires, broken connections, insect blockage, etc. While the cover was off I turned furnace Zone 1 up to 78 degrees and went back out to watch unit. I could hear it try to ignite two or three times but no go. That was all before I did the system reset at thermostat.
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Old 04-29-2014, 12:21 PM   #6
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Jim, when it did not light did you notice a led on the ckt board blinking? If so how many blinks? When it tries to light, hold your hand on the gas valve and see if you feel a thud. If you are getting a thud at the gas valve, you hear clicking and then get a 3 blink led on the board it is sensing no flame. You will need to remove the outside cover on the furnace to see the ckt board and feel the gas solenoid. The ckt board is mounted in the top of the case, you will need to kinda look up with the outer cover off to see it.

Get back to us on more clues. The furnace is a Attwood, not a Dometic. Edited, Attwood furnace.

Jim
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Old 04-29-2014, 04:01 PM   #7
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Quote:
quote:Originally posted by jlb27537



Get back to us on more clues. The furnace is a Suburban, not a Dometic.

Jim
When did Montana stop using Atwood/Excalibur furnaces and switch to Suburban furnaces?
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Old 04-30-2014, 02:09 AM   #8
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Quote:
quote:Originally posted by WeBeFulltime

Quote:
quote:Originally posted by jlb27537



Get back to us on more clues. The furnace is a Suburban, not a Dometic.

Jim
When did Montana stop using Atwood/Excalibur furnaces and switch to Suburban furnaces?
My Bad, It is a Attwood. Jim
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Old 04-30-2014, 05:20 AM   #9
JandC
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I guess I was going by the thermostat control in the hallway, thinking the furnace was a Dometic also. That was the only paperwork we received, none specific for only the furnace. It was 40 plus degrees this morning and is only getting up to low 50's. Have played around with furnace a couple of times, turning it up to 73 and letting it heat trailer up until it turns off, then turning it back down and waiting before repeating process. So far so good, it is lighting every time and shutting off when the inside temp (as displayed on thermostat) reaches the set temp.
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Old 04-30-2014, 12:50 PM   #10
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Sounds like the thermostat reset did it. Hope it works out good for you.
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Old 04-30-2014, 02:09 PM   #11
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I have a lot of experience with Atwood furnaces. It could be the ignitor, sail switch, Dometic thermostat or ??? Post again if you have problems, because I spent 3 days in snowy conditions figuring out why ours died.
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Old 04-30-2014, 05:36 PM   #12
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What is the "system reset at thermostat" procedure??? I've never heard of this. Thanks!

Quote:
quote:Originally posted by JandC

Finally did system reset at thermostat. Now works fine.
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Old 05-01-2014, 06:19 AM   #13
JandC
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[quote]Originally posted by CORattler

What is the "system reset at thermostat" procedure??? I've never heard of this. Thanks!
[quote]

Make sure thermostat is in "off" mode. Simultaneously press and hold the "Mode" and "Zone" buttons. The LCD display will display "IniT". Release the buttons. Press the "On/Off" button to exit system set up. This resets for factory settings. Since I completed this procedure everything is still working good. It is in the 40's with rain/wind today and I have ran the furnace several times just to keep testing it.
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Old 05-01-2014, 08:57 AM   #14
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The "System Reset" is used when there is a change in the config of the system, such as adding a bedroom air. During the reset the thermostat looks at the control board in the Zone 1 A/C unit and learns what devices (heat pumps, furnaces, 2nd A/C, etc) it is supposed to control.

IF your CCC2 thermostat is replaced, loses it memory, you do a system reset. IF your CCC2 thermostat is showing you have a LP furnace, and is causing it to try and heat, it (the CCC2) is working properly. If the furnace is not operating properly you can check the LED on the furnace board for a fault code.

Manuals for most of our systems are available here for free download.
http://bryantrv.com/docs.html

Jim
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