HVAC Community Hub | Lucas | Activity https://hvachub.co/members/lucaswong_professional/activity/ Activity feed for Lucas. Wed, 29 Apr 2026 12:59:07 +1200 https://buddypress.org/?v=2.18.0 en-US 30 hourly 2 9bc0e1eda4365449acf40436ed9433e3 Lucas posted a new activity comment https://hvachub.co/news-feed/p/6733/#acomment-6743 Thu, 23 Apr 2026 07:28:34 +1200 Had a guy jump the contactor and left it like that… unit just running nonstop.

In reply to - Samuel posted an update in the group Troubleshooting & Repairs Ever had a customer try to fix it themselves before calling you… and make it worse? ]]> 2ccb15cf7f169e41e371865fb7a4c531 Lucas posted a new activity comment https://hvachub.co/news-feed/p/6570/#acomment-6597 Sun, 12 Apr 2026 19:27:58 +1200 Biggest thing for me was actually understanding what’s covered not just the price.

In reply to - Jack posted an update in the group HVAC Installation Best Practices Been reviewing our business insurance lately and realizing I probably don’t understand half of what we’re actually covered for. Feels like […] ]]> 0323c0ecb5cb1dca452265bc8ce23a41 Lucas posted a new activity comment https://hvachub.co/news-feed/p/6424/#acomment-6426 Sat, 21 Mar 2026 00:45:55 +1300 Made the switch about 4 years ago. The physical side caught me off guard first. Residential you’re moving maybe 150 lbs on a bad day. Commercial RTU you’re rigging 800 lb units onto a roof with a crane and coordinating with a crew. Completely different animal.

In reply to - Carlos posted an update in the group Troubleshooting & Repairs Genuinely curious from people who made the switch from residential split installs to commercial RTU work. Not looking for the “commercial is […] ]]> c8f9384c31e03db9a4619a9c9ffa08f7 Lucas posted a new activity comment https://hvachub.co/news-feed/p/6088/#acomment-6093 Sat, 14 Feb 2026 12:12:43 +1300 If it’s still cooling okay nobody digs deeper.

In reply to - Henry posted an update in the group Troubleshooting & Repairs Seeing more systems lately that just run longer and feel weaker. Makes me wonder how much oil fouling gets ignored in residential. ]]> 737c474e6cb5b00541c245b7e6b45c18 Lucas posted a new activity comment https://hvachub.co/news-feed/p/6013/#acomment-6026 Fri, 13 Feb 2026 12:02:50 +1300 Just didn’t know if having something on paper helped at all.

In reply to - Andrea posted an update in the group Troubleshooting & Repairs I’m looking at getting into HVAC and trying to figure out the best first step. Trade school isn’t something I can commit to right now, so I’ve […] ]]> 4fbbb12035853be764e300206d919e5c Lucas posted a new activity comment https://hvachub.co/news-feed/p/5362/#acomment-5372 Fri, 30 Jan 2026 02:13:43 +1300 What’s your defrost duration set to? Some units default short and never really recover once they’re iced heavy.

In reply to - Michael posted an update in the group HVAC Installation Best Practices Outdoor unit icing up fast in heat mode. Ambient around 30°F. Suction 90 psig (R410A), evap below freezing. Defrost is initiating but […] ]]> b9fc4e3dfd2fb752331407cf4caf5b9a Lucas posted a new activity comment https://hvachub.co/news-feed/p/5141/#acomment-5164 Tue, 27 Jan 2026 18:10:58 +1300 Lunch plans canceled.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs This gauge tells you a lot if you actually pay attention. Pressure can look fine, but restrictions or flow issues usually show up here first. ]]> 2feaf976fea57bcf8e29a14f16df5bac Lucas posted a new activity comment https://hvachub.co/news-feed/p/5141/#acomment-5153 Tue, 27 Jan 2026 13:55:36 +1300 If you’re paying attention, the system starts talking early.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs This gauge tells you a lot if you actually pay attention. Pressure can look fine, but restrictions or flow issues usually show up here first. ]]> 064fbd04ab115ba92acdc07eb6911d58 Lucas posted a new activity comment https://hvachub.co/news-feed/p/5141/#acomment-5148 Tue, 27 Jan 2026 12:23:11 +1300 Numbers don’t always tell the whole story context does.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs This gauge tells you a lot if you actually pay attention. Pressure can look fine, but restrictions or flow issues usually show up here first. ]]> 7210a59b6a83460e3f3773e8a7afb113 Lucas posted an update in the group Troubleshooting & Repairs: This gauge tells you a lot if you actually […] https://hvachub.co/news-feed/p/5141/ Tue, 27 Jan 2026 10:35:11 +1300 This gauge tells you a lot if you actually pay attention.
Pressure can look fine, but restrictions or flow issues usually show up here first.

]]> 7 0c4223bbcdb05398cdff2d79abe5657c Lucas posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4897 Tue, 20 Jan 2026 12:01:46 +1300 Also easy to walk away when you won’t be servicing it later.

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 […] ]]> 2d56f7231edc72708b09d06c805fb138 Lucas posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4889 Tue, 20 Jan 2026 10:02:21 +1300 Every single time.

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 […] ]]> b4ff1692e5de56aeba8ebb5a8dc102e1 Lucas posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4882 Tue, 20 Jan 2026 08:22:38 +1300 Exactly. One small change breaks something else.

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 […] ]]> 6e40f4d275ff71a881212c5e6f2a1f4d Lucas posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4876 Tue, 20 Jan 2026 06:20:33 +1300 First visit is always an archaeology project.

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 […] ]]> 6ba869daa15ef38d4aa80b731236b7ff Lucas posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4870 Tue, 20 Jan 2026 04:25:10 +1300 Fair. But there’s a difference between not perfect and not thought through.

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 […] ]]> 9b8e4fc981318634a432811129003c86 Lucas posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4861 Tue, 20 Jan 2026 00:12:37 +1300 Design plays a role, but choices still get made in the field.

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 […] ]]> d0ebbd6309bfb5cc8f61a054dba12543 Lucas posted a new activity comment https://hvachub.co/news-feed/p/4857/#acomment-4859 Mon, 19 Jan 2026 22:37:57 +1300 But someone always ends up dealing with them.

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 […] ]]> 01b23c61eb45e99792490793449a4a6e Lucas posted an update in the group Troubleshooting & Repairs: This room has had at least three different contractors […] https://hvachub.co/news-feed/p/4857/ Mon, 19 Jan 2026 20:50:39 +1300 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 their issue, nobody owned the whole system. Now it all technically runs, but nobody wants to touch it without first undoing someone else’s work.
This is what happens when responsibility ends at the invoice… Read more

]]> 15 7a63cbb3c3ae805d01f720e4ebe2f4d1 Lucas posted a new activity comment https://hvachub.co/news-feed/p/4616/#acomment-4632 Wed, 14 Jan 2026 07:30:52 +1300 Every quick job starts with gauges saying otherwise.

In reply to - Hunter posted an update in the group HVAC Tools & Equipment Funny how one set of gauges can decide whether a job is simple… or turns into a long day. ]]> 4a257950b87f5074fe8f3ebe73ba97f6 Lucas posted a new activity comment https://hvachub.co/news-feed/p/4324/#acomment-4326 Tue, 06 Jan 2026 20:45:57 +1300 Love when machines look perfect but act like they’re haunted.

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 […] ]]> 2e7fa4da89a00f86408ab8d1c1dd921e Lucas posted a new activity comment https://hvachub.co/news-feed/p/4046/#acomment-4053 Sun, 28 Dec 2025 17:46:09 +1300 Running on paper, not in real life.

In reply to - Matthew posted an update in the group HVAC Installation Best Practices Exhaust fan shows running status, but building pressure keeps creeping positive. Motor amps look normal, yet airflow clearly isn’t matching […] ]]> c3fbb5c06c947f6e3fc4ae49afb3d758 Lucas posted a new activity comment https://hvachub.co/news-feed/p/3475/#acomment-3480 Tue, 09 Dec 2025 19:13:10 +1300 Love it when the fan decides to moonwalk during a fire test. 😑

In reply to - Zachary posted an update in the group HVAC Contractors & Subcontractors Ran a smoke-control test earlier, and the return fan briefly reversed direction the moment fire mode engaged. It only flipped for a […] ]]> 0e9bbeb3747e314d990eed9f1c179be9 Lucas posted a new activity comment https://hvachub.co/news-feed/p/3372/#acomment-3377 Sat, 29 Nov 2025 22:19:51 +1300 Check the calibration offset in the controller. Sometimes the multipliers get overwritten after a firmware update.

In reply to - Ethan posted an update in the group Troubleshooting & Repairs Hey guys, ran into something odd today – a few pressure-independent VAVs that look perfect in the BAS but fall way off when you take […] ]]> 1dda8863c4c5ac683e5806685ce65bbf Lucas posted a new activity comment https://hvachub.co/news-feed/p/3069/#acomment-3074 Fri, 14 Nov 2025 19:21:13 +1300 Can you guide me on which group I should join first? I’m not sure where to start.

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 […] ]]> d623e85584b78869825e56b60e70bb4e Lucas posted a new activity comment https://hvachub.co/news-feed/p/2970/#acomment-2979 Wed, 12 Nov 2025 19:59:15 +1300 If all fans are running fine after startup, it’s probably nothing to worry about. Some delay is normal.

In reply to - Noah posted an update in the group HVAC Installation Best Practices Weird one today – condenser fans don’t all start together. Sometimes one or two just hang out for 10–15 seconds, then decide to join the […] ]]> e3b940f8340207deb97ab8b489b4cff4 Lucas posted a new activity comment https://hvachub.co/news-feed/p/2819/#acomment-2822 Tue, 04 Nov 2025 21:16:29 +1300 Could also be the return air sensor reading off and confusing the control logic.

In reply to - Samuel posted an update in the group HVAC Contractors & Subcontractors Economizer’s been getting stuck midway between open and close. Actuator checks out fine during testing, but in normal operation, it just […] ]]> 1b59b12a9749cfd6ed3b36aabebe5f55 Lucas posted a new activity comment https://hvachub.co/news-feed/p/2780/#acomment-2785 Sat, 01 Nov 2025 13:55:12 +1300 We fixed one by updating the controller firmware. The sequencing was off and ran one compressor harder.

In reply to - Ethan posted an update in the group HVAC Contractors & Subcontractors Anyone experienced sporadic compressor overheating on multi-circuit RTUs? 🤔 One circuit keeps running hotter even after checking charge […] ]]> ba39c04affab3b2fb9536d9dc9645c95 Lucas posted a new activity comment https://hvachub.co/news-feed/p/2525/#acomment-2536 Tue, 21 Oct 2025 13:55:30 +1300 Has anyone tried green refrigerants yet? Curious if the efficiency trade-offs are worth it.

In reply to - HVAC Community Hub posted an update in the group HVAC Contractors & Subcontractors Hey friends, Even small tweaks in how we operate, maintain, or design HVAC systems can make a big difference for […] ]]> 647172494a35d2c14adcd1c9d2da1542 Lucas posted a new activity comment https://hvachub.co/news-feed/p/2363/#acomment-2372 Thu, 16 Oct 2025 05:47:33 +1300 Sometimes we just call happy customers and ask for a quick testimonial -people are happy to help.

In reply to - HVAC Community Hub posted an update in the group HVAC Reputation Powerhouse-Win Trust, Dominate Reviews, and Stand Out Outline Hey friends, Ever thought about how much power your reputation has in your […] ]]> 79ab14e12bf077dbf15e7b6a578c00a7 Lucas posted a new activity comment https://hvachub.co/news-feed/p/1879/#acomment-1890 Tue, 23 Sep 2025 18:35:56 +1200 Calibration once a year is overkill. Just swap when off.

In reply to - Oliver posted an update in the group HVAC Tools & Equipment Been thinking about our tools and their calibration lately. I like to keep my gauges and meters as sharp as possible, but I feel like I’m in the […] ]]> b8bf4e6f6b2e0dcf796f10e6fc091f75 Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1809 Tue, 16 Sep 2025 10:56:07 +1200 Wise approach! Efficiency matters.

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> faf8b48034759844e9dc7019f66d91bf Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1807 Tue, 16 Sep 2025 10:56:07 +1200 Excellent advice! I’ve successfully implemented limits and seen profits grow.

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> 908db5bd46ce8fd4fd2c33e9b5301c7d Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1805 Tue, 16 Sep 2025 10:56:06 +1200 Sounds challenging! Documenting changes really helps.

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> a12cd8176f25ae05b5c968e1c709af2b Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1803 Tue, 16 Sep 2025 10:56:06 +1200 Agreed! Flexibility can save time and stress.

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> 7a2429a26ba89184cff27d00e3f04918 Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1801 Tue, 16 Sep 2025 10:56:05 +1200 Absolutely agree! Clear limits build strong understanding.

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> ddf1d9a456e433b784969b4aeb39ceaa Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1799 Tue, 16 Sep 2025 10:56:05 +1200 Ah, duct origami: the art of unexpected twists! 😂

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> 7f20f7064f1b4e1b62def444743a06b7 Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1797 Tue, 16 Sep 2025 10:56:04 +1200 Flat fees keep everyone smiling, right? Well done!

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> 604783d68baa969f87c138cb6e79480b Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1795 Tue, 16 Sep 2025 10:56:03 +1200 Sounds like a real puzzle! Keep those blocks lined up!

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> 87cdc8518b151b0b246ab5836207a992 Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1793 Tue, 16 Sep 2025 10:56:03 +1200 Flat fees simplify processes and enhance clarity.

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> daf7f70c0d836b39480e62b1f6b3c13d Lucas posted a new activity comment https://hvachub.co/news-feed/p/1789/#acomment-1791 Tue, 16 Sep 2025 10:56:03 +1200 Great strategy! Clear contracts help avoid headaches.

In reply to - Lucas posted an update in the group HVAC Tools & Equipment Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an […] ]]> a37afef8250837b51c39f142f253add8 Lucas posted an update in the group HVAC Tools & Equipment: Been on a job lately where everything was running smooth […] https://hvachub.co/news-feed/p/1789/ Tue, 16 Sep 2025 10:56:02 +1200 Been on a job lately where everything was running smooth as butter. We were wrapping up an install when the client suddenly asks if we can add an extra duct and shift the condenser about five feet to the left. Classic case of scope creep. I know it happens to everyone, but man, these last-minute changes can really throw a wrench in the works.… Read more

]]> 20 c3dbdb4059c06821a3daa3f1658ef573 Lucas posted a new activity comment https://hvachub.co/news-feed/p/1106/#acomment-1118 Wed, 23 Jul 2025 10:25:25 +1200 Raised floor and gravel underneath prevent water build-up during heavy seasons.

In reply to - Samuel posted an update in the group HVAC Tools & Equipment Finished our compressor room install: compressors on vibration pads, 3 ft service aisles all around, supply/exhaust venting ducted outside, condensate […] ]]> 82e7efeeb183aea355c7c855a2b75f34 Lucas posted a new activity comment https://hvachub.co/news-feed/p/1073/#acomment-1077 Tue, 22 Jul 2025 18:43:26 +1200 A twisted blower blade or minor debris can squeal on startup-but quiet later. Inspect closely.

In reply to - Mason posted an update in the group Troubleshooting & Repairs Customer reports a high-pitched squeal from their A/C on startup. Blower belt’s new, bearings oil-changed, panels tight-noise still there. Any ideas […] ]]> cf2777698f6a84473c60c500eaf90b74 Lucas posted a new activity comment https://hvachub.co/news-feed/p/969/#acomment-971 Thu, 17 Jul 2025 12:17:58 +1200 Subcooling should always be within 10–15°F anything lower signals issues.

In reply to - Maxime posted an update in the group HVAC Installation Best Practices Installed a 5-ton rooftop unit, but DX system was freezing up—found suction line insulation missing and subcooling was 8°F too low. Proper […] ]]> e1017798b14168f792683c9c773c16d2 Lucas posted a new activity comment https://hvachub.co/news-feed/p/485/#acomment-500 Mon, 05 May 2025 12:25:58 +1200 Ran in circles with a similar issue before I found the valve was the problem.

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

Had an interesting moment today on an office project. We were troubleshooting a server room with a 100 TR chiller, and everything seemed fine. […]

]]> 23e94dfe78d3fc86f831f9fa38ce6651 Lucas posted a new activity comment https://hvachub.co/news-feed/p/271/#acomment-297 Thu, 01 May 2025 09:16:26 +1200 Had a guy put a plastic cover over the thermostat to ‘keep the cool in’—short cycled all day.

In reply to - Tyler posted an update in the group Troubleshooting & Repairs Quick Tip: If your system is short cycling, check the air filter and thermostat location first—both can cause the unit to shut off early. Start […] ]]>