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HURRY THE DINING ROOM IS TOO COLD

I share real-world HVACR work, the thinking behind it, and the mistakes that come with the job.

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49 Comments

  1. Great video, Chris. If they do decide to change the unit, could you please do a video on changing it. Thanks. Love your videos.

  2. I think it is absolutely wild that in an area where you don't even get sub-freezing temperatures, you still install natural gas heating (with the additional parts, plumbing and all) instead of reversible AC units.

  3. The zappy wasn't making the clickies, so the stinky wasn't fwoomping, and no uh-oh means bad brain. Got it!

    I think the last ten or so years I lived in SoCal (up until late 2016), I didn't even own a pair of pants. All shorts, all the time! I do miss the weather!

  4. Are they making RTUs with heatpumps at this point? In a warm climate, would it simplify install and maintenance of these units, vs. gas?

  5. Chris, always a pleasure watching your diag process, I believe you make us all better using the big picture approach!

  6. Chris, sometimes I envy you, and other times I don’t. In this case, I kinda don’t envy you because you have to deal with dirty voltage on numerous occasions. I watched you check the control voltage, and it showed 24V. It looked like it was dropping and going up sporadically, which probably caused the issue. That voltage likely dropped below 23V, which in turn caused the board to fail internally and malfunction. As always, you handled it very well. Great video.

  7. I started laughing when you said a low of 40F. It is 7:pm and glad the temp is 24. I think it was -12F on my morning drive in to work a couple of weeks ago.

  8. Good isolation and elimination! That one is in pretty good shape now, considering. Glad you're not in my part of the country in the east, it would be brutal for you, 19° now, and looking for a high tomorrow of 24° and a winter storm warning. I'm ready for spring 🙂

  9. How many times do you have to say the same thing that’s why we drop out of these videos after a couple of minutes because you just run your mouth

  10. Great video Chris! How did cooling on a Carrier gaspack (with original R22 compressors) last 20 years?…in the desert!! I grew up in Inglewood (1954-1972).

  11. The only thing I can add is when checking gas pressures some gas valves will show a different pressure depending on if the caps are on or off where the pressure adjustment is. I don't remember which vales cause I have steeped a lot ! Great job!

  12. Love your video as always. I respectfully giggle about 40 degrees being cold because I am in Iowa and it'll be 5 degrees tonight, when it's 40 we might wear a hoodie maybe. So I would want to repair the board. I learned a long time ago that even if you fix the board you always loose in the time it takes. I just love to troubleshoot problems like that.

  13. LOTO isn't just for electricity ; if you're locking out a gas line, leave a weatherproof tag on the shutoff with the reason you're locking it out. Otherwise, the next guy may reactivate an unsafe condition that you safed.

  14. 1.8/3.5 I’ve always found has been too much for my region considering most duct is undersized. Usually I trim it down and monitor temp rise and adjust accordingly.

  15. Is heating by gas cheaper than ac in the us? I cant recall I've seen a video with a reversible ac on such unit?

  16. I just find it so weird and amusing that these units even use gas for heating when all they need to do is reverse the refrigeration cycle like ours do here in Australia. I've NEVER seen a gas fed unit here. Anywhere.

  17. Yeah your right you don't know what cold is. I'm in northwest suburbs of Chicagoland in January it was -10 outside temp with windchill around -25 working on RTU

  18. В центральной России сейчас -7°C. Я бы с удовольствием перенес и 4°C. 😮

  19. fire/smoke alarm s triggered in T minus ten. 🤣 them grease exchangers, no wonder the gas is off, probably have to burn them off for an hour or more with it open to outdoors, lol.

  20. some of them wont lockout or keep resetting if the call for heat keeps going on and off. some need hard power cycled, not sure on that exact one.
    also fiddling with the sensor wiring and plugs could make it keep resetting too, so lockout may not happen.
    ** also limits acting up may cause call reset and no lockout.

  21. Out of curiosity, why don' the compressors run in heating mode (switching the hot side to indoor similar to mini splits)? Especially if it does not get that cold.

  22. Honestly, probably would have just swapped the two boards on the carrier units. i think they use the same ignition control board. then add it to the list of stuff they need to fix on the other RTU.

  23. Have you ever had trouble with the Gentec condenser fan motors burning up quick on those older carrier units?

  24. With out going forward into the video. At 8:54 section I see on the PCB an area that looks very suspicious

  25. Just ran a call on a carrier today. I didn’t know what that proving switch coming off the inducer was called. “Hall effect” thank you sir!

  26. Furnaces will be running up here in Central Oregon some years into May. This year will probably be one of them since we haven't really had a winter yet. Good fix, I am assuming they have CO detectors in the building.

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