HVAC Community Hub | Liam | Activity https://hvachub.co/members/liam_brooks/activity/ Activity feed for Liam. Wed, 29 Apr 2026 12:59:07 +1200 https://buddypress.org/?v=2.18.0 en-US 30 hourly 2 d3fd34ac7f39b7c3b0adc20fcc2949da Liam posted a new activity comment https://hvachub.co/news-feed/p/6218/#acomment-6225 Sat, 21 Feb 2026 10:47:26 +1300 Sometimes people block returns because they think it helps with cold drafts.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs Just closed on a house built in the 1920s and the furnace looks pretty new installed around 2022 from what I can tell. While walking through […] ]]> b0de5a66d9105f9d55e2f47d11efab4c Liam posted a new activity comment https://hvachub.co/news-feed/p/6169/#acomment-6178 Thu, 19 Feb 2026 07:04:40 +1300 When I realized the cheap guys were still busy… just with the worst customers.

In reply to - Benjamin posted an update in the group Troubleshooting & Repairs Hi All, ]]> 6fdda51e3915dc84c33efdfa26955fb3 Liam posted a new activity comment https://hvachub.co/news-feed/p/6160/#acomment-6177 Thu, 19 Feb 2026 07:04:39 +1300 Sprinkler guys probably ran after you were done and parked right in your space.

In reply to - Juan posted an update in the group HVAC Installation Best Practices 30’ ceilings + scissor lift all day. Trying to keep the trunk straight while dodging steel and sprinkler lines. Whoever drew this on paper […] ]]> 7d72ea94b27e608063b19f206922d15c Liam posted a new activity comment https://hvachub.co/news-feed/p/6069/#acomment-6094 Sat, 14 Feb 2026 12:24:03 +1300 Been doing this 25 years. Airflow first. Always.

In reply to - Zachary posted an update in the group HVAC Installation Best Practices Had something weird happen today. Didn’t even realize my techs were out here making bets on what the issue would be. Sent two of them up to […] ]]> 214199e5d7e2e254487d05f4bee5a114 Liam posted a new activity comment https://hvachub.co/news-feed/p/5855/#acomment-5858 Wed, 11 Feb 2026 02:40:30 +1300 I don’t mind explaining, but it slows everything down when they hover.

In reply to - Jordan posted an update in the group HVAC Installation Best Practices My tech called me laughing today because the customer kept asking what he was doing every step of the way. Appreciate the interest, […] ]]> 18d0db64600cb9b400083f9abb3458fe Liam posted a new activity comment https://hvachub.co/news-feed/p/5747/#acomment-5756 Sun, 08 Feb 2026 04:27:06 +1300 How’s the amp draw looking on that thing?

In reply to - Jules posted an update in the group HVAC Installation Best Practices I’m sure this thing cooled great… before the coil turned into a dust blanket and airflow became optional. ]]> 4ade70bf2466f5d4d3f30a4f5b2e9e40 Liam posted a new activity comment https://hvachub.co/news-feed/p/5627/#acomment-5631 Thu, 05 Feb 2026 10:26:26 +1300 Take a breath. First thing is tighten the schedule and stop overpromising for a couple weeks.

In reply to - Benjamin posted an update in the group HVAC Installation Best Practices Hello All, ]]> a0e299ed53f7c5d5d8e7f0410d085a3b Liam posted a new activity comment https://hvachub.co/news-feed/p/5558/#acomment-5593 Wed, 04 Feb 2026 16:34:25 +1300 It’ll run, but it’s never going to be low-touch.

In reply to - Liam posted an update in the group HVAC Installation Best Practices This drain setup is a future service call waiting to happen. Condensate issues shut more systems down than bad boards lately. ]]> 07850d529fb8c5f02fa705c364044993 Liam posted a new activity comment https://hvachub.co/news-feed/p/5558/#acomment-5590 Wed, 04 Feb 2026 14:56:43 +1300 Works fine now but once slime starts, it won’t clear itself. Gravity only forgives so much.

In reply to - Liam posted an update in the group HVAC Installation Best Practices This drain setup is a future service call waiting to happen. Condensate issues shut more systems down than bad boards lately. ]]> 0a8695ebca3b92869fabcbf56873ead3 Liam posted a new activity comment https://hvachub.co/news-feed/p/5558/#acomment-5586 Wed, 04 Feb 2026 12:57:23 +1300 Totally get that. I usually note it and explain what fails first so there’s no surprise later.

In reply to - Liam posted an update in the group HVAC Installation Best Practices This drain setup is a future service call waiting to happen. Condensate issues shut more systems down than bad boards lately. ]]> 441b008243c4ee4750d86d8d6f1e06ef Liam posted a new activity comment https://hvachub.co/news-feed/p/5558/#acomment-5581 Wed, 04 Feb 2026 11:01:44 +1300 Fair point. Maintenance makes all the difference. These only scare me when nobody services them.

In reply to - Liam posted an update in the group HVAC Installation Best Practices This drain setup is a future service call waiting to happen. Condensate issues shut more systems down than bad boards lately. ]]> 9f50a8eedc502e0408cab86b3a1fc19e Liam posted a new activity comment https://hvachub.co/news-feed/p/5558/#acomment-5568 Wed, 04 Feb 2026 06:46:13 +1300 Cleanout is there, just not where you’d want it. Makes routine flushing more annoying than it should be.

In reply to - Liam posted an update in the group HVAC Installation Best Practices This drain setup is a future service call waiting to happen. Condensate issues shut more systems down than bad boards lately. ]]> f6701c8d303d79c41e7109c429b06578 Liam posted a new activity comment https://hvachub.co/news-feed/p/5558/#acomment-5564 Wed, 04 Feb 2026 05:11:01 +1300 That’s exactly the pattern I’ve seen. It’s never July day one, it’s week three when calls start coming in.

In reply to - Liam posted an update in the group HVAC Installation Best Practices This drain setup is a future service call waiting to happen. Condensate issues shut more systems down than bad boards lately. ]]> 55f54f11f2c9a4d2335cb3187f6243f7 Liam posted an update in the group HVAC Installation Best Practices: This drain setup is a future service call waiting […] https://hvachub.co/news-feed/p/5558/ Wed, 04 Feb 2026 03:25:13 +1300 This drain setup is a future service call waiting to happen.
Condensate issues shut more systems down than bad boards lately.

]]> 13 37ab981a7330295b7a193c13a84fc7ad Liam posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4880 Tue, 20 Jan 2026 07:45:19 +1300 You can see where one contractor stopped, another picked up, and nobody coordinated. Controls here, duct changes there, piping rerouted with no plan. It all works, but it’s fragile.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs This room has had at least three different contractors work on it over the years. You can tell where each one stopped caring. Everyone fixed […] ]]> 34f61f3b55265e062d615222d8180a5a Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4780 Sat, 17 Jan 2026 15:15:00 +1300 That invisible cost is what finally forces the decision.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> 92210efad95f9f0db250d7b27df73e41 Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4776 Sat, 17 Jan 2026 13:16:03 +1300 We just have to decide who’s paying when it doesn’t hold.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> a0a505e75271aae3ac6932ae963cad30 Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4772 Sat, 17 Jan 2026 11:41:18 +1300 Capacity complaints and rising service time. Age just made us less optimistic.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> 90990dbca6ca0cbc323c15178c4ca98f Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4768 Sat, 17 Jan 2026 09:42:17 +1300 It’s already picked out a beach somewhere.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> 2e9f3724a68357728ff92eb92dfa0511 Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4764 Sat, 17 Jan 2026 07:48:06 +1300 That’s smart. We’re moving toward that mindset now.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> d3d06f7b0867092fea98a3f6ddc7405a Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4757 Sat, 17 Jan 2026 05:45:25 +1300 And suddenly it’s an emergency with emergency expectations.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> 381a9e7a0eb88d7834c1b41d0b65d500 Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4749 Sat, 17 Jan 2026 03:30:56 +1300 That logic has cost me more money than bad installs ever did.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> 1baf28782eeb2b7a611b77f6c3f242ac Liam posted a new activity comment https://hvachub.co/news-feed/p/4739/#acomment-4744 Sat, 17 Jan 2026 01:56:13 +1300 On paper it’s still running, but the hours and inefficiency are already billing us quietly.

In reply to - Liam posted an update in the group HVAC Installation Best Practices Opened this unit up today to see how far we can push it. It’s working, but if it drops mid-week the downtime will hurt more than the repair […] ]]> 3bb57dd61a6c12874117d1d1fc3b20a1 Liam posted an update in the group HVAC Installation Best Practices: Opened this unit up today to see how far we can […] https://hvachub.co/news-feed/p/4739/ Sat, 17 Jan 2026 00:11:56 +1300 Opened this unit up today to see how far we can push it.
It’s working, but if it drops mid-week the downtime will hurt more than the repair cost.
These are the calls where numbers matter more than optimism.

]]> 16 8cff103bb8a3544950211e79bdba6a86 Liam posted a new activity comment https://hvachub.co/news-feed/p/4529/#acomment-4568 Tue, 13 Jan 2026 09:43:42 +1300 Combustion test without the fancy explanation.

In reply to - Mason posted an update in the group HVAC Tools & Equipment Alright HVAC fam… This tool + these matches… what am I hunting today? 😅 Who’s got it? ]]> 64b53875278d57bf4f8093f212e9cbc1 Liam posted a new activity comment https://hvachub.co/news-feed/p/4402/#acomment-4417 Fri, 09 Jan 2026 06:50:47 +1300 Not every call is urgent – but the urgent ones expose how prepared you really are.

In reply to - Theo posted an update in the group HVAC Tools & Equipment When the call matters,everything moves faster. ]]> 0d3b4172037247b43e9c8a0409ef1da3 Liam posted a new activity comment https://hvachub.co/news-feed/p/4324/#acomment-4329 Tue, 06 Jan 2026 21:05:11 +1300 Check tube bundle condition if possible. We saw scale build-up unevenly once and it drove us crazy.

In reply to - Alexander posted an update in the group HVAC Installation Best Practices We’ve got a dual-circuit water-cooled chiller where one circuit runs fine and carries load, but the other keeps cycling more than it […] ]]> 3ad615ff660f1b7e6437815d89aebbb7 Liam posted a new activity comment https://hvachub.co/news-feed/p/4248/#acomment-4258 Fri, 02 Jan 2026 17:58:49 +1300 And each visit leaves it slightly worse than before if it’s not addressed properly.

In reply to - Liam posted an update in the group Troubleshooting & Repairs Internal fiberglass insulation inside the unit has degraded and detached. The insulation has sagged into the airflow path, collecting dust and […] ]]> 6d6c762694b90183081e5a94d2e60866 Liam posted a new activity comment https://hvachub.co/news-feed/p/4248/#acomment-4256 Fri, 02 Jan 2026 17:58:47 +1300 Comfort and air quality complaints show up way earlier than efficiency complaints.

In reply to - Liam posted an update in the group Troubleshooting & Repairs Internal fiberglass insulation inside the unit has degraded and detached. The insulation has sagged into the airflow path, collecting dust and […] ]]> 347589ebebd2e39a45a6462d4abb3c07 Liam posted a new activity comment https://hvachub.co/news-feed/p/4248/#acomment-4254 Fri, 02 Jan 2026 17:58:46 +1300 Could be. Moisture plus airflow is usually what finishes off the adhesive. After that, gravity does the rest.

In reply to - Liam posted an update in the group Troubleshooting & Repairs Internal fiberglass insulation inside the unit has degraded and detached. The insulation has sagged into the airflow path, collecting dust and […] ]]> 355f6f454429648209a6864791e9a7ac Liam posted a new activity comment https://hvachub.co/news-feed/p/4248/#acomment-4252 Fri, 02 Jan 2026 17:58:44 +1300 It doesn’t announce itself. It just slowly changes how the system behaves, so people adapt instead of investigating.

In reply to - Liam posted an update in the group Troubleshooting & Repairs Internal fiberglass insulation inside the unit has degraded and detached. The insulation has sagged into the airflow path, collecting dust and […] ]]> 5b3af5de7ee1071121e4efb2b609a22b Liam posted a new activity comment https://hvachub.co/news-feed/p/4248/#acomment-4250 Fri, 02 Jan 2026 17:58:42 +1300 Yeah, once the internal liner starts failing, it’s usually a repeat problem. You end up fixing symptoms instead of the cause.

In reply to - Liam posted an update in the group Troubleshooting & Repairs Internal fiberglass insulation inside the unit has degraded and detached. The insulation has sagged into the airflow path, collecting dust and […] ]]> 550577783ece55a604a2395737f485ec Liam posted an update in the group Troubleshooting & Repairs: Internal fiberglass insulation inside the unit has […] https://hvachub.co/news-feed/p/4248/ Fri, 02 Jan 2026 17:58:41 +1300 Internal fiberglass insulation inside the unit has degraded and detached. The insulation has sagged into the airflow path, collecting dust and debris. This creates airflow restriction, increases static pressure, and allows insulation fibers to enter the airstream. At the same time, moisture exposure has caused surface corrosion on nearby… Read more

]]> 10 298d88de8ee5d7e7c6535507cb518ea8 Liam posted a new activity comment https://hvachub.co/news-feed/p/4213/#acomment-4216 Thu, 01 Jan 2026 20:53:44 +1300 If it was never balanced under real load, this can look fine forever until someone actually touches it.

In reply to - Mathew posted an update in the group HVAC Installation Best Practices Flow changes immediately when the valve position is adjusted, but system response doesn’t scale the way it should under load.Feels like […] ]]> 0efa10f4aeae615b949845b94d09f067 Liam posted a new activity comment https://hvachub.co/news-feed/p/3574/#acomment-3581 Thu, 11 Dec 2025 21:48:35 +1300 Check for a supply duct pressure dip right when the fan ramps. Even a small dip can knock a few boxes off for a second.

In reply to - Jack posted an update in the group HVAC Installation Best Practices Seeing a weird one – when the supply fan ramps up, a few VAV boxes actually lose airflow for a moment. CFM drops for a couple seconds like […] ]]> 1cdb91d94643902182226de1ab24b356 Liam posted a new activity comment https://hvachub.co/news-feed/p/3408/#acomment-3411 Tue, 02 Dec 2025 01:29:14 +1300 Feel the pipe. If the valve is closed but the outlet is hot, it’s leaking.

In reply to - Jameson posted an update in the group HVAC Tools & Equipment Seeing multiple reheat boxes sending warm air even with zero heating command. BAS reports valves closed, but discharge temps are definitely higher […] ]]> e9398ad2a296a510c3a1ca1f0ff6de86 Liam posted a new activity comment https://hvachub.co/news-feed/p/3384/#acomment-3391 Tue, 02 Dec 2025 01:29:02 +1300 Check that motor. Weak bearings or a stiff shaft can spike voltage when the drive tries to stop it fast.

In reply to - Andrea posted an update in the group HVAC Contractors & Subcontractors Got a drive that behaves fine at full speed but trips on overvoltage the moment it starts slowing down. No issues on ramp-up at […] ]]> 994b03589cbbdc104e0822c254b484a4 Liam posted a new activity comment https://hvachub.co/news-feed/p/3342/#acomment-3343 Thu, 27 Nov 2025 19:48:21 +1300 Check your triggers. If one field doesn’t populate right, the whole workflow freezes.

In reply to - Brandon posted an update in the group HVAC Email Pipeline Builder |Nurture Leads. Follow Up. Close More Deals ad one of those “what is even going on today” moments with my email pipeline. A customer replied to […] ]]> a5775b51cce9862105a67cf3ad1f72a2 Liam posted a new activity comment https://hvachub.co/news-feed/p/3247/#acomment-3260 Mon, 24 Nov 2025 06:17:20 +1300 This community just keeps getting better.

In reply to - HVAC Community Hub posted an update in the group HVAC Contractors & Subcontractors 📢 Hey everyone, good news! A lot of you have been asking for this for a long time… and yes, we were quietly working on it in […] ]]> fe5574fb8336193046dfe8f34b7fcf18 Liam posted a new activity comment https://hvachub.co/news-feed/p/3069/#acomment-3076 Fri, 14 Nov 2025 19:21:15 +1300 I joined all the groups… now I just need to actually talk in them 😂

In reply to - Tyler posted an update in the group HVAC Tools & Equipment I’d love to see everyone getting more involved across all the groups here. Jump in, share your thoughts, ask questions, and support each other – it […] ]]> 3fb6245f52482244a8ae567fed0569f2 Liam posted a new activity comment https://hvachub.co/news-feed/p/2989/#acomment-2996 Wed, 12 Nov 2025 19:59:28 +1300 I’ve had control boards leak voltage internally like that. No visible damage, just weird readings between R and C.

In reply to - Jordan posted an update in the group HVAC Contractors & Subcontractors Came across a strange one today – transformer keeps dropping voltage under load, but this time the fuse actually holds fine and the […] ]]> 1235c751c743ea43bae5dfc8f56d15a2 Liam posted a new activity comment https://hvachub.co/news-feed/p/2738/#acomment-2745 Thu, 30 Oct 2025 20:08:46 +1300 Main thing with Trane: always check the thermistor readings. They love to drift and cause false sensor faults.

In reply to - Mathew posted an update in the group HVAC Tools & Equipment Honestly, I don’t get to work on Trane units very often. Curious – who here works on them regularly? Any good manuals, PDFs, or online resources […] ]]> 55f844ff5a8c61e0c3c4af3744d63dd7 Liam posted a new activity comment https://hvachub.co/news-feed/p/2678/#acomment-2685 Mon, 27 Oct 2025 14:26:18 +1300 sometimes it’s not the tank at all, but pump operation causing pressure swings.

In reply to - Mathew posted an update in the group Troubleshooting & Repairs Noticed some erratic pressure readings on an expansion tank in a commercial hydronic system – the bladder seems fine, but the pre-charge may […] ]]> 1f2fd1f2bcbbf31f46cc7ff14e0dadfe Liam posted a new activity comment https://hvachub.co/news-feed/p/2506/#acomment-2513 Mon, 20 Oct 2025 13:56:46 +1300 If all connections are good, it’s probably not the VFD – might be a motor winding issue.

In reply to - Grayson posted an update in the group HVAC Contractors & Subcontractors Variable speed drive blower isn’t ramping properly -voltage keeps dropping intermittently, connections all checked. Could this be VFD […] ]]> 58f6cc7233942a6591adeb3aef4c0616 Liam posted a new activity comment https://hvachub.co/news-feed/p/1959/#acomment-1968 Wed, 24 Sep 2025 16:05:28 +1200 Why stop at water? Let’s add soda for extra fizz 😜

In reply to - Theo posted an update in the group HVAC Contractors & Subcontractors Is it okay to flush an AC system with water before adding new refrigerant, or could it cause corrosion? ]]> 27e835bdfbc4eede6cdf6cfb0418804c Liam posted a new activity comment https://hvachub.co/news-feed/p/1768/#acomment-1771 Tue, 16 Sep 2025 10:55:58 +1200 Adjusting the airflow and sealing up ductwork usually pays off big time without blowing the budget.

In reply to - Ethan posted an update in the group HVAC Installation Best Practices While optimizing chiller efficiency on a recent project, I found myself caught between reducing approach temperature and improving the […] ]]> 932acf6dae009ded79a97dc69cba47d6 Liam posted a new activity comment https://hvachub.co/news-feed/p/1693/#acomment-1712 Sun, 07 Sep 2025 13:54:05 +1200 I like the seasonal campaign idea. Could we use it for filter change reminders?

In reply to - Benjamin posted an update in the group HVAC Email Pipeline Builder |Nurture Leads. Follow Up. Close More Deals One thing I keep noticing in our community: many HVAC contractors are still treating email like […] ]]> 4763429872de5b3af0cbbf849ae59898 Liam posted a new activity comment https://hvachub.co/news-feed/p/347/#acomment-360 Mon, 05 May 2025 06:25:59 +1200 Was this a chilled water system or DX?

In reply to - Jacob posted an update in the group Troubleshooting & Repairs

A Big Lesson from a Big Project – Water Leakage from Existing Ducts

Hey everyone,

I wanted to share a recent situation from a major project I’ve been […]

]]> 3354faf124aabf6743c4d8fc4f452226 Liam posted a new activity comment https://hvachub.co/news-feed/p/200/#acomment-214 Thu, 24 Apr 2025 07:08:30 +1200 Clean the coils—even new ones if they sat during construction.

In reply to - Ethan posted an update in the group HVAC Installation Best Practices

HVAC Installation – Where It All Starts

Over the years, I’ve learned one thing that’s never failed me: no matter how high-end the equipment is, […]

]]> f8852a85bed42932c9d8d6c7ab61677a Liam posted a new activity comment https://hvachub.co/news-feed/p/158/#acomment-169 Thu, 17 Apr 2025 09:24:49 +1200 Cleanest cuts ever.

In reply to - Matteo posted an update in the group HVAC Tools & Equipment

Been thinking about this a lot lately — there’s tools I grab every single day without even thinking, and there’s others I thought I had to have, but […]

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