HVAC Community Hub | Caleb | Activity https://hvachub.co/members/calebdavis_pro/activity/ Activity feed for Caleb. Wed, 29 Apr 2026 12:59:07 +1200 https://buddypress.org/?v=2.18.0 en-US 30 hourly 2 bbfa13870fe11b743a3a6d3a91489478 Caleb posted a new activity comment https://hvachub.co/news-feed/p/6775/#acomment-6796 Wed, 29 Apr 2026 01:37:34 +1200 Depends on your area honestly.

In reply to - Pietro posted an update in the group HVAC Installation Best Practices Hey, ]]> b7beeeaf6f29baf868730be6dc7a20b3 Caleb posted a new activity comment https://hvachub.co/news-feed/p/6511/#acomment-6535 Tue, 07 Apr 2026 21:19:14 +1200 New tools always feel faster the first week anyway 😄

In reply to - Tristan posted an update in the group Troubleshooting & Repairs Bought a new vacuum pump thinking it would speed things up, but honestly not seeing much difference compared to my old one yet. Maybe I’m missing […] ]]> 222a358d2e54709f391f3990519de056 Caleb posted a new activity comment https://hvachub.co/news-feed/p/6419/#acomment-6420 Fri, 20 Mar 2026 20:49:02 +1300 This is exactly why you walk the lineset before the drywall goes up. Every time. Non negotiable on my jobs.

In reply to - Henry posted an update in the group HVAC Installation Best Practices Callback for low cooling. Pressures look like a restriction. Traced it back to the lineset inside the wall kinked at the corner where it […] ]]> 7ed60d00a155d584909fe126249f726f Caleb posted a new activity comment https://hvachub.co/news-feed/p/6326/#acomment-6336 Tue, 17 Mar 2026 13:10:35 +1300 Two visits, full diagnostic both times, and the answer was an elbow. Classic.

In reply to - Elijah posted an update in the group HVAC Installation Best Practices Three hours. Checked the board, checked the contactor, checked the capacitor, checked every connection in the system twice. Everything […] ]]> 122487792bf36a6f255b37a380903fdb Caleb posted a new activity comment https://hvachub.co/news-feed/p/6182/#acomment-6202 Thu, 19 Feb 2026 15:00:53 +1300 Customer translation: It was working” means i wasn’t paying attention.

In reply to - James posted an update in the group HVAC Installation Best Practices Had a customer today tell me, It was working fine yesterday.” Funny how that sentence usually means I’m about to find something that’s […] ]]> 5f7814b271213abb2ad8273047ba72c2 Caleb posted a new activity comment https://hvachub.co/news-feed/p/6131/#acomment-6142 Wed, 18 Feb 2026 09:25:37 +1300 Same here. If you don’t spell it out in the beginning, you’ll be explaining it for free later.

In reply to - Samuel posted an update in the group Troubleshooting & Repairs Hello, ]]> a1d7e6fea96448ba565b5487c7be1d88 Caleb posted a new activity comment https://hvachub.co/news-feed/p/5960/#acomment-5965 Fri, 13 Feb 2026 01:10:51 +1300 Is that R410A or 22?

In reply to - Logan posted an update in the group Troubleshooting & Repairs Hello all. Sometimes the picture says enough. ]]> 2d30a8612ac736352017cd90afe62388 Caleb posted a new activity comment https://hvachub.co/news-feed/p/5037/#acomment-5044 Sat, 24 Jan 2026 04:12:14 +1300 That’s not a duct run, that’s a life journey.

In reply to - Connor posted an update in the group Troubleshooting & Repairs Walked into the basement and just stood there for a second. No idea who designed this run or how many hands touched it. It works… […] ]]> aaba6299dc52cf390d2453b674d3fca9 Caleb posted a new activity comment https://hvachub.co/news-feed/p/4677/#acomment-4680 Thu, 15 Jan 2026 06:09:54 +1300 Doing the basics right saves you later.

In reply to - Wyatt posted an update in the group HVAC Installation Best Practices Nothing fancy today, just doing the basics right. ]]> f271dc5019449d11cc52ecb49a75997d Caleb posted a new activity comment https://hvachub.co/news-feed/p/4670/#acomment-4676 Thu, 15 Jan 2026 05:10:21 +1300 That gauge moves the second you turn your back. Every time.

In reply to - Lucas posted an update in the group HVAC Contractors & Subcontractors Pulled vacuum, watched the gauge, and waited. Some days the numbers cooperate… some days they don’t. ]]> 32992dd4318586e854c3e849fb1ca378 Caleb posted a new activity comment https://hvachub.co/news-feed/p/4529/#acomment-4540 Tue, 13 Jan 2026 03:43:53 +1300 Heat exchanger or flue leak?

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? ]]> d5058ddd611724d31ed2cff7f64e8266 Caleb posted a new activity comment https://hvachub.co/news-feed/p/4202/#acomment-4212 Thu, 01 Jan 2026 20:53:41 +1300 That’s on the list. Hard to prove without tearing into the design side.

In reply to - Caleb posted an update in the group HVAC Tools & Equipment Chilled water valve is fully commanded open and actuator tracks correctly. Pump responds as expected, flow is present, but temperature difference […] ]]> 88f3647fbe8a4c82ed5d33f1e6a6d474 Caleb posted a new activity comment https://hvachub.co/news-feed/p/4202/#acomment-4209 Thu, 01 Jan 2026 20:53:22 +1300 That’s an easy one to miss if you trust the pump response too much.

In reply to - Caleb posted an update in the group HVAC Tools & Equipment Chilled water valve is fully commanded open and actuator tracks correctly. Pump responds as expected, flow is present, but temperature difference […] ]]> d4ac6a624da813fad173df7557e66cce Caleb posted a new activity comment https://hvachub.co/news-feed/p/4202/#acomment-4206 Thu, 01 Jan 2026 20:53:19 +1300 Exactly. Works fine until the building actually asks for capacity.

In reply to - Caleb posted an update in the group HVAC Tools & Equipment Chilled water valve is fully commanded open and actuator tracks correctly. Pump responds as expected, flow is present, but temperature difference […] ]]> fc79dc1ddcf9c81a908d3eedbd676611 Caleb posted a new activity comment https://hvachub.co/news-feed/p/4202/#acomment-4204 Thu, 01 Jan 2026 20:53:17 +1300 And those hours never show up in a fault log.

In reply to - Caleb posted an update in the group HVAC Tools & Equipment Chilled water valve is fully commanded open and actuator tracks correctly. Pump responds as expected, flow is present, but temperature difference […] ]]> 288a39c36680fe4b655650f06593e761 Caleb posted an update in the group HVAC Tools & Equipment: Chilled water valve is fully commanded open and […] https://hvachub.co/news-feed/p/4202/ Thu, 01 Jan 2026 20:53:16 +1300 Chilled water valve is fully commanded open and actuator tracks correctly.
Pump responds as expected, flow is present, but temperature difference across the coil drops once load increases.

No obvious airside issue yet. Still doesn’t behave like a simple control fault.

]]> 10 7154db5bbbaa4eab01de89e8bd9e7da4 Caleb posted a new activity comment https://hvachub.co/news-feed/p/4055/#acomment-4056 Sun, 28 Dec 2025 17:46:10 +1300 Sounds like valve leakage. Closed on BAS doesn’t always mean closed in the pipe.

In reply to - Adam posted an update in the group Troubleshooting & Repairs CHW control valve is fully closed, but the coil keeps picking up heat. Supply water temps stay steady, yet return temps say flow is still […] ]]> c5a7b96975a6ca6856285108ba98d1d6 Caleb posted a new activity comment https://hvachub.co/news-feed/p/4046/#acomment-4051 Sun, 28 Dec 2025 17:46:07 +1300 Backdraft damper stuck closed will do this every time.

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 […] ]]> 3bba788af02d5a882465026364d668c3 Caleb posted a new activity comment https://hvachub.co/news-feed/p/3974/#acomment-3979 Wed, 24 Dec 2025 13:42:30 +1300 We fixed one by adding a minimum enable hold time so short drops were ignored.

In reply to - Owen posted an update in the group HVAC Contractors & Subcontractors Seeing a chiller micro-cycle because the enable signal drops out for a few milliseconds. Not long enough to alarm, but enough to reset […] ]]> 08998f34d7b4cce2453e49639ed51a1a Caleb posted a new activity comment https://hvachub.co/news-feed/p/3475/#acomment-3478 Tue, 09 Dec 2025 19:13:09 +1300 Seen it happen when the contractor left a manual override on the VFD. Worth a look.

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 […] ]]> 107d215e90a0e3bb0552aaf57d31d3c0 Caleb posted a new activity comment https://hvachub.co/news-feed/p/2898/#acomment-2903 Thu, 06 Nov 2025 17:03:30 +1300 Heat stages not igniting could be flame sensor grounding. AAONs are picky about that.

In reply to - Adam posted an update in the group HVAC Installation Best Practices Had my hands full with an AAON AHU today. The compressors don’t sound healthy at all – that unload cycle rattles like it’s struggling to […] ]]> 800215e03f407c3657663eed0dcaaf69 Caleb posted a new activity comment https://hvachub.co/news-feed/p/2069/#acomment-2076 Fri, 03 Oct 2025 12:58:00 +1300 Funny how the quietest components end up saving the day.

In reply to - Owen posted an update in the group HVAC Contractors & Subcontractors Hey folks, Had a call last week-system was acting up, making weird noises. Went in and noticed the pressure relief valve hadn’t been checked […] ]]> b2c105bf7c7173d685576b14e1125ec3 Caleb posted a new activity comment https://hvachub.co/news-feed/p/1337/#acomment-1338 Fri, 15 Aug 2025 11:17:08 +1200 Yep-that’s why they make actuator-head replacements. You avoid draining the valve and just swap in the motor and wiring.

In reply to - Mason posted an update in the group HVAC Contractors & Subcontractors Had a zone valve actuator that seemed fine but fan times in HVAC schedules were way off. Finally figured out the actuator head was […] ]]> bc068629c0dc962555db7f038799d40a Caleb posted a new activity comment https://hvachub.co/news-feed/p/1204/#acomment-1218 Mon, 11 Aug 2025 14:23:47 +1200 😂 The chase is sacred-no turf wars here.

In reply to - Caleb posted an update in the group HVAC Contractors & Subcontractors Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared […] ]]> a5c5595a4bd7bfef758b32a3fc89a0cb Caleb posted a new activity comment https://hvachub.co/news-feed/p/1204/#acomment-1216 Mon, 11 Aug 2025 14:23:46 +1200 Yep-clear visuals and coordination equal confidence, not confusion.

In reply to - Caleb posted an update in the group HVAC Contractors & Subcontractors Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared […] ]]> fa079758a96f61252615183719cabf34 Caleb posted a new activity comment https://hvachub.co/news-feed/p/1204/#acomment-1214 Mon, 11 Aug 2025 14:23:42 +1200 Agreed-spotting a conflict in 3D avoids painful revisions later.

In reply to - Caleb posted an update in the group HVAC Contractors & Subcontractors Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared […] ]]> f2ed29eab5672f79b42c37fcca8a5983 Caleb posted a new activity comment https://hvachub.co/news-feed/p/1204/#acomment-1212 Mon, 11 Aug 2025 14:23:33 +1200 Already doing that-cloud-based log makes it easy and transparent.

In reply to - Caleb posted an update in the group HVAC Contractors & Subcontractors Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared […] ]]> 9b7edc413b7b8dcfb1598c4414a95481 Caleb posted a new activity comment https://hvachub.co/news-feed/p/1204/#acomment-1210 Mon, 11 Aug 2025 14:23:31 +1200 Walks mean fewer surprises. The drywall crew didn’t run into duct risers this time-huge win.

In reply to - Caleb posted an update in the group HVAC Contractors & Subcontractors Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared […] ]]> 47bef26b3b8b2e11512bc7fb94057813 Caleb posted a new activity comment https://hvachub.co/news-feed/p/1204/#acomment-1208 Mon, 11 Aug 2025 14:23:30 +1200 Absolutely-everyone left having a voice. When the electrician flagged a conflict, we solved it before install started.

In reply to - Caleb posted an update in the group HVAC Contractors & Subcontractors Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared […] ]]> 2cf1316483f04157282c5ba1c1c037d7 Caleb posted a new activity comment https://hvachub.co/news-feed/p/1204/#acomment-1206 Mon, 11 Aug 2025 14:23:29 +1200 That saved a day on labor and zero dust inside the units-worth the upfront tech.

In reply to - Caleb posted an update in the group HVAC Contractors & Subcontractors Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared […] ]]> 9a7d20f57e9fa5464c1514a3c7e87083 Caleb posted an update in the group HVAC Contractors & Subcontractors: Wrapped up a multi-trade site install this week-hosted […] https://hvachub.co/news-feed/p/1204/ Mon, 11 Aug 2025 14:23:28 +1200 Wrapped up a multi-trade site install this week-hosted a kickoff with HVAC, plumbing, electrical, and fire protection. We used a shared cloud folder for layouts and held weekly jobsite walkthroughs-helped catch clashes early and kept calls to just two to sort coordination issues.

]]> 13 941b5cbccb35de6c9080c5e8e4f354c0 Caleb posted a new activity comment https://hvachub.co/news-feed/p/1155/#acomment-1156 Tue, 05 Aug 2025 16:39:20 +1200 Seen this before. Could be a weak C-wire connection thermostats pulling just enough juice but intermittently dropping. Try measuring voltage under load.

In reply to - Andrea posted an update in the group HVAC Installation Best Practices Lately, I’ve been running into a weird issue on a couple of residential jobs. The smart thermostats (Nest + Ecobee) randomly go offline for a […] ]]> b5c2bd5f3bb6a7d46e664c116197ad7d Caleb posted a new activity comment https://hvachub.co/news-feed/p/485/#acomment-486 Mon, 05 May 2025 12:08:20 +1200 Classic! Once had a valve issue like that and almost fried the system.

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. […]

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