Re: Traeger issues
Posted: 22 May 2011, 21:38
dieselracer13 - would you be able to tell me where you sourced your controller? Think i need to get one ordered!
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Hi crphillipscrphillips wrote:dieselracer13 - would you be able to tell me where you sourced your controller? Think i need to get one ordered!
The other really big difference between your controller and the one I received is that your "P" settings (relating to the precise on/off intervals in smoke mode) is controlled by a switch behind that small hole to the right of the display (operated by a cocktail stick or similar). To change my "P" settings, I would have had to remove the controller and refit it each time, as it was a control on the reverse of the circuit board. Given that to actually get the board into my Traeger without a hacksaw would have meant disassembling the whole thing and reassembling in place, this would have been major grief.dieselracer13 wrote:I've attached some photos so you can compare it with the unit you received from Germany
I actually got this significantly wrong, so I will restate.Chris__M wrote:More significantly, your controller, and the later 180 one, had the "new" logic. The temperature control logic works roughly like this - when the grill temperature is lower than that set, the auger runs full time. When temperature is reached, the controller reverts to "smoke" setting to maintain the temperature, until it falls below set temp, requiring the auger to come on full again.
With the old controller, the smoke setting it defaulted to was 1 minute on, and then 3 minutes off. With the newer controllers, this was switched to 3 minutes off and then 1 minute on. This may not seem important, but it meant that under the "old" logic, the grill temperature would reach that set, and then - in "smoke" mode - would continue to feed pellets for another minute. This caused noticeable temperature swings in the original controller.
Thanks Chris,Chris__M wrote:I actually got this significantly wrong, so I will restate.Chris__M wrote:More significantly, your controller, and the later 180 one, had the "new" logic. The temperature control logic works roughly like this - when the grill temperature is lower than that set, the auger runs full time. When temperature is reached, the controller reverts to "smoke" setting to maintain the temperature, until it falls below set temp, requiring the auger to come on full again.
With the old controller, the smoke setting it defaulted to was 1 minute on, and then 3 minutes off. With the newer controllers, this was switched to 3 minutes off and then 1 minute on. This may not seem important, but it meant that under the "old" logic, the grill temperature would reach that set, and then - in "smoke" mode - would continue to feed pellets for another minute. This caused noticeable temperature swings in the original controller.
It appears (from what I have read) that some 225 controllers had the old logic, some had the new. However, in either case, Traeger switched from a 1 minute/3 minute smoke cycle to a 15 second/X (see below) second cycle. So even if your Traeger does start the smoke cycle as "ON", it is only for 15 seconds, not a full minute.
The OFF period is controlled by the P setting, which defaults to P2
P-0 15 sec on 45 sec off
P-1 15 sec on 55 sec off
P-2 15 sec on 65 sec off
P-3 15 sec on 75 sec off
P-4 15 sec on 85 sec off
P-5 15 sec on 95 sec off
P-6 15 sec on 105 sec off
P-7 15 sec on 115 sec off
P-8 15 sec on 125 sec off
P-9 15 sec on 135 sec off
Finally, the Auger of Traegers with manual controllers has a rod going down the centre, to restrict the pellet feed. It is generally recommended to remove this (or some people say part of this) when fitting a digital controller However, it may be prudent to run for a while with the rod still in place, and see how you get on. Removal is done with a hacksaw, so it is not something to do lightly.
A recent post on this, with photos, can be seen at http://pelletheads.com/index.php?topic= ... 9#msg84359
A more detailed post, with step by step pictures is at http://pelletheads.com/index.php?topic= ... 863#msg863
That is exactly why. The auger is the same in both grills, but the auger fitted to the Lil' Tex has the restricting rod.crphillips wrote:I've looked at mine and it doesn't have the rod as standard. Is that because mine is the Texas and not Lil Texas?
Thanks for the offer, but since returning my controller to Germany, I have embarked on a foolish project to design my own controller, based on an Arduino processor board. This will not only monitor and control temperature, but will also enable me to access remotely over WiFi via a mini-web-server. It's very early days yet, so don't hold your breath!crphillips wrote:Thanks for the info. I've emailed Tim and he's replied already. Might get on on it's way. You want me to order you one Chris_M whilst i'm at it? Might save on postage?
Just for info, I seared some chicken kebabs and the temps achieved 450°F with the rod still in situ so for now I'll delay completing the modification. I've settled on position P-0 for the time being with temps of between 173°F & 188°F. Then with a setting of 225°F the temps controlled pretty consistantly with a 5-7°F swing either side of the setpoint. So far I'm pleased with the way the digital controller is working.Chris__M wrote:Chris__M wrote:
The OFF period is controlled by the P setting, which defaults to P2
P-0 15 sec on 45 sec off
P-1 15 sec on 55 sec off
P-2 15 sec on 65 sec off
P-3 15 sec on 75 sec off
P-4 15 sec on 85 sec off
P-5 15 sec on 95 sec off
P-6 15 sec on 105 sec off
P-7 15 sec on 115 sec off
P-8 15 sec on 125 sec off
P-9 15 sec on 135 sec off
Finally, the Auger of Traegers with manual controllers has a rod going down the centre, to restrict the pellet feed. It is generally recommended to remove this (or some people say part of this) when fitting a digital controller However, it may be prudent to run for a while with the rod still in place, and see how you get on. Removal is done with a hacksaw, so it is not something to do lightly.
A recent post on this, with photos, can be seen at http://pelletheads.com/index.php?topic= ... 9#msg84359
A more detailed post, with step by step pictures is at http://pelletheads.com/index.php?topic= ... 863#msg863