Quick tip on how to recall error codes on the Lennox L series units, and also checking condeneser fan motor operation.
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I'm working on a Linux l-series unit today and I'm just happen to be here, doing something else, and I'm just walking through their air conditioners, making sure that there's no problems, so the first thing I'm doing is walking up. This is like the m18 board or m17 board m17 I'm walking up, and it has a recall feature on this old one. So I'm gon na flip the recall dip switch, see what code comes up code 82 and if you press the button it'll show you the last code up for that code. 82.
Push it again go to 82, so code 82 keeps coming up. I'm gon na go over here and look it just says: 82 main board reset or power outage has occurred. That's not anything to be concerned about so when I'm all done, I'm gon na hold down the black button until the zero appears. I just cleared the error codes so that way, if my self or the next guy comes back here next week and flips on the error codes, they don't see the old codes.
They see everything, that's new. So, whenever I'm doing that, I always erase the error codes once I'm sure there's no problems. The other thing I'm gon na do is this units not running right now, but condenser fan motors are a big thing that fail all the time. So what I'm going to do is I'm going to bypass the condenser fan motors just to verify if they're working these older units have the relays that leave makes it able for that to happen.
So I'm just going to the other term and also that way it forces on all the condenser fan motors as a preventative measure. Then I can verify if they're working, which they are all working now. So that's a quick little way to check the condenser fan motors. Then, if one of them didn't start, I could you know let the restaurant know and then get back out here and replace it kind of a preventative maintenance thing.
I just happen to be here and I'm way out in the boonies, so I'm just checking them just to make sure there's no problems. That's all just a quick tip.
The L series units are the most simplest systems in the industry to work on and to service. I’m an ex Lennox employee and went back into the field but the L series Energence systems are even better and easier with the Prodigy boards. You run through the board to do your diagnostics and alarm code checks. That board has never failed me in troubleshooting an issue. Never have had to bust out gauges or my amp probes. Not ever.
How do u put in text mode for cooling?
Nice video
Couple of quick questions if you don't mind first do you move the wires on the relays to circumvent the head pressure controls? I guess what I'm really asking is in test mode of both circuits would the head pressure switches still keep the stage 2 fan from running? Are you in Barrhaven ?
Thanks for the reminder. It’s been a while sense I worked on an Lseries. Those are sweet units.
Man the L series are some of my favorites to work on. Haven't' worked on one for a few years, but I did a lot of them about 5-10 years ago.
I loved those L Series. So easy to work on. Service area Orleans??
Right on! O just subscribed and already learned me something! 😎👍
Good tip. I never thought to move the wires to the next pin for the fan motors. Your very detailed in your work and explanations. 👍
i did not know about that recall , thanks 😉
I like that. I’m not all too familiar with the older Lennox boards. I know you can put it in test mode just have to read up on it.
Good tips