HVAC Community Hub | Jacob | Activity https://hvachub.co/members/jacob79/activity/ Activity feed for Jacob. Wed, 29 Apr 2026 12:59:07 +1200 https://buddypress.org/?v=2.18.0 en-US 30 hourly 2 631cbb914416625046a9c3d9e0b6d4c0 Jacob posted a new activity comment https://hvachub.co/news-feed/p/6583/#acomment-6586 Sun, 12 Apr 2026 01:02:55 +1200 How many callbacks are you actually getting though?

In reply to - Samuel posted an update in the group HVAC Installation Best Practices Callbacks are killing time over small misses lately. Anyone else dealing with this? ]]> 89c7671893e80a239f78859ba8fae888 Jacob posted a new activity comment https://hvachub.co/news-feed/p/6353/#acomment-6356 Thu, 19 Mar 2026 00:47:19 +1300 What’s your condenser entering air temp vs your discharge air temp off the top of the unit. If the delta across the condenser coil is low you’ve got a heat transfer problem even if the fan looks fine.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs Carrier 24ACC636, R410A, 3-ton. First startup of the season. Suction 115 PSI Discharge 445 PSI. Superheat 8°F. Subcooling 18°F. Ambient 74°F. Charge […] ]]> e591ce8c7148e116d7de1990dce33b69 Jacob posted a new activity comment https://hvachub.co/news-feed/p/6065/#acomment-6108 Sat, 14 Feb 2026 17:20:25 +1300 That’s what I was thinking. Even if it looks fine,I wouldn’t trust it sealed or clean after that.

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Alright I need a reality check. Redoing some duct runs at my Dad’s place. He bought flex and left it sitting for a while. Mice clearly […] ]]> 3dadde83520a5f469986059807f8e645 Jacob posted a new activity comment https://hvachub.co/news-feed/p/6065/#acomment-6070 Sat, 14 Feb 2026 03:48:51 +1300 Same here. Even if the liner looks fine, it’s compromised.

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Alright I need a reality check. Redoing some duct runs at my Dad’s place. He bought flex and left it sitting for a while. Mice clearly […] ]]> 7a4ffbfabaa87eab88e6dc4d52de3211 Jacob posted an update in the group HVAC Installation Best Practices: Alright I need a reality check. Redoing some duct runs […] https://hvachub.co/news-feed/p/6065/ Sat, 14 Feb 2026 00:25:30 +1300 Alright I need a reality check.

Redoing some duct runs at my Dad’s place. He bought flex and left it sitting for a while. Mice clearly got curious. No giant holes but you crack it open and that smell hits you immediately.
Before I just throw it out… is there any legit way to clean/sanitize flex duct once rodents have been in it? Or am I being… Read more

]]> 14 926bb767c5499d97ce5729592954b2d2 Jacob posted a new activity comment https://hvachub.co/news-feed/p/5771/#acomment-5775 Sun, 08 Feb 2026 10:34:38 +1300 We hit just over a million with 3 trucks and zero paid ads. All referrals and Google reviews. Biggest change was tightening pricing and stop underbidding installs.

In reply to - Tyler posted an update in the group HVAC Installation Best Practices Mid-size market, roughly 900k population in our service area. Median household income around low 70s. We’re running 2 trucks plus me still in […] ]]> 38aa78e17f220af765ef5ac529d470bc Jacob posted a new activity comment https://hvachub.co/news-feed/p/5708/#acomment-5719 Sat, 07 Feb 2026 05:06:53 +1300 Agreed. Cheap insurance, especially on older installs.

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Another one from loose connections. ]]> fec11ed0b68f1acedcae37c89d181ee0 Jacob posted a new activity comment https://hvachub.co/news-feed/p/5708/#acomment-5711 Sat, 07 Feb 2026 00:50:30 +1300 Yep. Seen that mistake cook way too many disconnects.

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Another one from loose connections. ]]> a7f10f5f9d2f2bf5448e5dae135fa30c Jacob posted an update in the group HVAC Installation Best Practices: Another one from loose connections. https://hvachub.co/news-feed/p/5708/ Fri, 06 Feb 2026 21:30:14 +1300 Another one from loose connections.

]]> 9 651d72361edcab65b24cb325cc16e0ca Jacob posted a new activity comment https://hvachub.co/news-feed/p/5683/#acomment-5692 Fri, 06 Feb 2026 11:09:40 +1300 I don’t see burn marks yet. I’d tape it up and keep an eye on it.

In reply to - Austin posted an update in the group Troubleshooting & Repairs Found this inside the unit today insulation split open and the copper conductors exposed and fraying. Not failed yet, but this is exactly […] ]]> d07d74110ae1b80fe978b853c788d13e Jacob posted a new activity comment https://hvachub.co/news-feed/p/4268/#acomment-4278 Sat, 03 Jan 2026 18:44:48 +1300 We had this flagged for months because it wasn’t critical. Then everyone complained about startup delays.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs Pump keeps losing prime after shutdown. ]]> 1f45fc1a711bbaf7b4b4571d1b638d64 Jacob posted a new activity comment https://hvachub.co/news-feed/p/3493/#acomment-3497 Tue, 09 Dec 2025 19:13:23 +1300 doing that tomorrow – need a proper thermal picture of what’s happening.

In reply to - Jacob posted an update in the group Troubleshooting & Repairs Bottom half of this DX coil keeps turning into a popsicle while the top stays bone dry. Airflow’s fine, charge looks fine, nothing obvious – but the […] ]]> 7fe066a94aac9a84a62d3c03ff01c13a Jacob posted a new activity comment https://hvachub.co/news-feed/p/3493/#acomment-3495 Tue, 09 Dec 2025 19:13:21 +1300 hmm… didn’t check for leaks around the casing. good shout.

In reply to - Jacob posted an update in the group Troubleshooting & Repairs Bottom half of this DX coil keeps turning into a popsicle while the top stays bone dry. Airflow’s fine, charge looks fine, nothing obvious – but the […] ]]> 7cce19da42ade9a95443e75b9860b407 Jacob posted an update in the group Troubleshooting & Repairs: Bottom half of this DX coil keeps turning into a […] https://hvachub.co/news-feed/p/3493/ Tue, 09 Dec 2025 19:13:20 +1300 Bottom half of this DX coil keeps turning into a popsicle while the top stays bone dry.
Airflow’s fine, charge looks fine, nothing obvious – but the lower circuits freeze the moment the load eases up.
Feels like either the coil isn’t seeing air evenly or one circuit’s starving while the other coasts.

]]> 4 16aa9e3b6bf94f15231e4e535b7511c3 Jacob posted a new activity comment https://hvachub.co/news-feed/p/3323/#acomment-3326 Wed, 26 Nov 2025 17:52:39 +1300 Looks like every VFD I find in old commercial buildings. Still running but shouldn’t be.

In reply to - Jacob posted an update in the group Troubleshooting & Repairs Opened this VFD panel on a service call today – dust, loose wiring, and still running at 6000 like nothing’s wrong. ]]> 32508496facec71509da8694f8f227f3 Jacob posted a new activity comment https://hvachub.co/news-feed/p/2363/#acomment-2374 Thu, 16 Oct 2025 05:47:34 +1300 I wish I knew earlier that even small reviews help -they all count in building credibility.

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 […] ]]> dffdfcfecd2be269faa67400b2804f4f Jacob posted a new activity comment https://hvachub.co/news-feed/p/2314/#acomment-2317 Mon, 13 Oct 2025 14:28:34 +1300 Sometimes it’s the control board losing sync – we had a similar rooftop unit last month.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs Rooftop unit here – compressor keeps short-cycling. Pressures look normal, but it shuts down randomly. Anyone run into this? ]]> 654fd069450d241bd8d057c8dade1521 Jacob posted a new activity comment https://hvachub.co/news-feed/p/2231/#acomment-2234 Fri, 10 Oct 2025 18:11:21 +1300 Sometimes I hesitate to post because I’m not a pro…

In reply to - HVAC Community Hub posted an update in the group HVAC Contractors & Subcontractors Hi friends, I may not know all the technical details, but I love seeing how everyone learns and grows here. This community […] ]]> b95e221a503862bdaaefa0aa4c0598d0 Jacob posted a new activity comment https://hvachub.co/news-feed/p/2195/#acomment-2196 Wed, 08 Oct 2025 06:09:05 +1300 Sometimes the fan isn’t moving enough air even if it’s spinning -check RPM and blade condition.

In reply to - Lucas posted an update in the group Troubleshooting & Repairs Condenser fan motor is running, but the system won’t reach the setpoint. Discharge pressures are high – not sure if it’s airflow, fan efficiency, […] ]]> 865877aaa79ed0c3a499c98da7b46979 Jacob posted a new activity comment https://hvachub.co/news-feed/p/2151/#acomment-2154 Mon, 06 Oct 2025 18:23:32 +1300 Check for loose wire connections inside the drive – tiny things can cause big drops.

In reply to - Ethan posted an update in the group HVAC Tools & Equipment Strange voltage drop on a variable-speed blower – unit won’t ramp properly even after checking all connections. ]]> 9187dfafa84819d80b3ecf33102ac63d Jacob posted a new activity comment https://hvachub.co/news-feed/p/1944/#acomment-1958 Wed, 24 Sep 2025 16:05:22 +1200 Haha, I don’t want my AC plotting against me just yet!

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit? ]]> 68d4b28f53179b02434eefe4ac1b7bf3 Jacob posted a new activity comment https://hvachub.co/news-feed/p/1944/#acomment-1956 Wed, 24 Sep 2025 16:05:20 +1200 Exactly what I was worried about -thanks for confirming!

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit? ]]> 116d4ea0daa7eaab9a32e36e417905ed Jacob posted a new activity comment https://hvachub.co/news-feed/p/1944/#acomment-1954 Wed, 24 Sep 2025 16:05:19 +1200 Yes, better safe than sorry, especially with older units

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit? ]]> 4d5a04e03563f3830e00fb72a040e0b9 Jacob posted a new activity comment https://hvachub.co/news-feed/p/1944/#acomment-1952 Wed, 24 Sep 2025 16:05:17 +1200 Good point, didn’t consider the pressure differences. Definitely worth double-checking.

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit? ]]> 047f77b99689466d90b98039f54e7db6 Jacob posted a new activity comment https://hvachub.co/news-feed/p/1944/#acomment-1950 Wed, 24 Sep 2025 16:05:16 +1200 Thanks! I’ll look into retrofit kits first before experimenting.

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit? ]]> a0eb49412d449c6ac1b5bc649e1fbb0a Jacob posted a new activity comment https://hvachub.co/news-feed/p/1944/#acomment-1948 Wed, 24 Sep 2025 16:05:15 +1200 Exactly! That’s why I’m asking before turning my system into a science experiment 😬

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit? ]]> 14e5892a4dedc79ec6d2ca5b143b4a40 Jacob posted a new activity comment https://hvachub.co/news-feed/p/1944/#acomment-1946 Wed, 24 Sep 2025 16:05:13 +1200 Haha! Yeah, I don’t think your living room should double as a freezer ❄️

In reply to - Jacob posted an update in the group HVAC Installation Best Practices Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit? ]]> fb1d52efa8dd643d7a14742360d37cb2 Jacob posted an update in the group HVAC Installation Best Practices: Can I use R410A in an older R22 system if I change the […] https://hvachub.co/news-feed/p/1944/ Wed, 24 Sep 2025 16:05:11 +1200 Can I use R410A in an older R22 system if I change the oil? Would it affect efficiency or damage the unit?

]]> 14 66716f77cc789cd63d4ecf5a0ee29956 Jacob posted a new activity comment https://hvachub.co/news-feed/p/1858/#acomment-1861 Tue, 23 Sep 2025 18:35:32 +1200 Hands-on training with VRF systems has been a lifesaver. Real-world issues really stick with them.

In reply to - Lucas posted an update in the group HVAC Contractors & Subcontractors Been feeling the pinch lately when it comes to hiring skilled techs, especially in VRF and automation systems. It’s like every new hire is […] ]]> 33728ee01d946e8fa406febdf3e77b1e Jacob posted a new activity comment https://hvachub.co/news-feed/p/1427/#acomment-1440 Fri, 22 Aug 2025 10:31:53 +1200 Include valve watch in your PM flow chart-especially on renovated systems, someone could have bumped them.

In reply to - Dylan posted an update in the group HVAC Installation Best Practices Walked into a commercial job today to find two 15-year-old VRF indoor units throttled flat-out every morning-full on fan speed, fuzzy […] ]]> f9c31f1dbfc7e2ce48521305244d6066 Jacob posted a new activity comment https://hvachub.co/news-feed/p/1369/#acomment-1371 Fri, 22 Aug 2025 10:31:00 +1200 Good point. I’ve seen weak transformers cause intermittent lockouts more than once.

In reply to - Adam posted an update in the group Troubleshooting & Repairs Looking for some guidance with a Carrier 38AKS unit. This one predates the newer ComfortLink controls and is still running on an ICM board paired […] ]]> 1fdea8abde32c5129409230b8db0f783 Jacob posted a new activity comment https://hvachub.co/news-feed/p/1275/#acomment-1290 Wed, 13 Aug 2025 06:43:15 +1200 Cleaning a blower wheel can boost airflow by up to 20% and save energy-it’s one of the simplest upgrades to restore system health.

In reply to - Aiden posted an update in the group HVAC Installation Best Practices Removed nearly 5 lbs of built-up dust and grime from a 10-year-old blower motor housing last week. The system felt quieter immediately, […] ]]> d6628430510f5deffbe45e597bd1da5f Jacob posted a new activity comment https://hvachub.co/news-feed/p/862/#acomment-883 Tue, 15 Jul 2025 10:43:38 +1200 For training, we use a shared Google Drive where we drop “ideal job” pics by category—condensers, AHUs, mini-splits, etc. Super helpful for junior techs.

In reply to - Tristan posted an update in the group HVAC Installation Best Practices One habit that’s saved us more than once: taking photos before and after every install or repair. Didn’t think much of it at first, but […] ]]> 7c8e6aab8ff3ab859dbe48493665909c Jacob posted a new activity comment https://hvachub.co/news-feed/p/271/#acomment-280 Thu, 01 May 2025 07:37:54 +1200 Rodents chewed through the temp sensor wire—cutting out randomly.

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 […] ]]> 9873dcf040c7bb6dc2102ec3a134e404 Jacob posted a new activity comment https://hvachub.co/news-feed/p/200/#acomment-235 Thu, 24 Apr 2025 10:59:59 +1200 Float switch on every AHU in attic—non-negotiable.

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, […]

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