On-Call For Back-to-Back 38 Degree Days

I had 5 call outs in total over the two days.
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[@tomasnewson6744]

Those hplp switches may have not reset just because the ambient was so high that the reset diff was never achieved,or just took forever to achieve. But I’d have likely changed em anyway , like you . Decent video mate, will subscribe 👍🏻🇬🇧

[@CapitalCoastHVAC]

Peak summer also here in Wellington NZ (23c) Ha ha. 38c 🥵

[@hvacraustralia]

It’s was a rough few days 😂

[@Thermoelectric7]

You ever seen a Temperzone plug up the screens before the orifices? Had one at one of our sites, plugged the liquid line solid with what was like tarry lint just after the outdoor coil orifice. Tripping on LP Replaced that bit of pipe, put it back together and it ran fine. Came back later for a maintenance and it had plugged the screen at the indoor coil orifice. Put a biflow filter dryer in it yesterday (in hindsight we should have done that the first time), should have it sorted now but I'd love to know where all that shit came from.

[@JesseDoesHVAC]

brazing without nitrogen most likely

[@tonymontana897]

You should just remove that section of line and sweat in a straight through pipe. Always braze with nitro..

[@Thermoelectric7]

@JesseDoesHVAC it was a package unit, didn't look like it had been worked on previously. Unless the factory brazed without nitro but doubt it. Was bizzare that it somehow managed to plug a 3/8 liquid line solid

[@Thermoelectric7]

@tonymontana897 Yeah we did, removed the plugged bit and replaced. Went digging in it after we pulled it out to try and figure out what had plugged it. Would have been a pretty solid pressure differential across it (R410a), amazed it managed to plug the line solid.

[@hvacraustralia]

I have seen it a few times but only partially blocked. I put it down to overheating the oil causing it to break down and block the strainers. Crazy to be fully blocked.

[@Paul-IE-Repairs]

LEV1 linear expansion valve

[@thesilentonevictor]

Good troubleshooting