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minisplithelp

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Discussion starter · #1 ·
Hello! We are having an issue with our minisplits, that are currently being installed. There have now been three kinks in the minisplit lines. Our original, licensed GC ran lines to two rooms but did not install any units and otherwise did not otherwise work on the minisplits. He unfortunately to deal with an injury he sustained at another job site and left the project. We hired a new GC and HVAC company to complete the bulk of the work. New GC blamed the original contractor for the kinked lines. So far he has found three kinks and we have to pay each time he drains the lines and repairs a kink. Should he have had a better process to identify the kinks instead of fixing them and pressurizing one at a time and charging us separately for each repair? He did not look for other kinks after finding the first or second. The floor boards in the attic under which lines were run were open to him and the two lines with all the problems were very accessible until today. One kink was ten inches from another kink.

After this last time, I asked him why he doesn’t/didn’t replace the line because there could still be more kinks (not realizing that he didn’t do any investigatory work prior to repairing the first two. Now he says he can’t replace because the GC just installed flooring in the attic today making it much much more difficult to access the line. Should GC and his HVAC installer have communicated better and perhaps not installed flooring until they knew the problem was resolved? The GC keeps throwing the old contractor under bus and charging us for “unanticipated” problems from the original contractor’s work which I think should have been visible to him before starting the project because the walls and underneath the floors were completely open. Should they have even used the lines after they claimed to have so many problems with the previous contractor’s work? They haven’t even tested the units. Just now, we experienced an extremely loud vibrating noise (like a powerdrill or saw) at the distribution box even though no units are on.

I have been the one to test the units after they leave and identified the hissing sound, which they later confirm is a kink. Should the HVAC installer be testing the minisplits and confirming they all work? His plan tomorrow is to cut out the small kink and pressurize (and charge us) again. Thank you for any advice you have. Are they addressing how you would address or is there a better solution?
 
Discussion starter · #3 ·
My thoughts too. We are paying for a complete install with the new contractor, but because the previous contractor ran two internal lines, they are blaming him and making us pay for their additional time to troubleshoot. I think the new contractor should have confirmed no additional issues/and or replaced the line after identifying the first issue rather than wasting hours repairing sections and repressurizing multiple times.
 
Personally unless it was an insanely long line set I would not repair a mini split line set I would replace it.
And I agree it seems that somebody else should be paying for that mistake.
 
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Discussion starter · #6 ·
It is fairly close to the distribution box. Perhaps 10 feet. I think I should insist that they replace the line. Is there a way or tools for them to check the other lines for issues before repairing this line so they don't need to pressurize the lines again if there are more issues?

In addition to this issue, they dropped the lines from the ceiling into the side of the units in the rooms, so about 2 feet of the lines and wiring are exposed in each of the rooms. The install doesn't look clean or like any of the pictures I have seen online of installed minisplits. I asked if they could cover the lines, but they said it wasn't possible. I see some pictures of internal covers online. are there interior covers for lines you would recommend that I could point them too?
 
Who was injured....the original HVAC Contrxctor or the original GC? Did you pay either of them?

Please explain why you think the new contractors should be responsible for the work of the previous contractors?

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Discussion starter · #8 ·
The original contractor was injured at another site, and yes, we paid him for the work he completed. We waited a while for him to return, but eventually, he said he couldn't do the project. Very minimal work was done on the minisplit project. He only partially ran two lines, which the new contractor ended up changing because he decided to install the compressor in a new location. The contract with the new installer includes running and connecting all piping block from the distribution block to all units and the outdoor unit. The contract is basically for a full install because the old contractor didn't really do anything. My main issue is how they are going about troubleshooting and also not ever checking to see if the units actually work. Testing each indoor unit is also included in the contract. it seems really expensive and inefficient and I am wondering if there is a better way, because they plan to do the same exact thing tomorrow, simply cut out the kinked piece pressurize and hope for the best.
 
Your posts are very confusing.

If the old contractor's work was abandoned/ or removed then how can the new contractor...who you say ran new linesets, be blaming the old contractor?

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The original contractor was injured at another site, and yes, we paid him for the work he completed. We waited a while for him to return, but eventually, he said he couldn't do the project. Very minimal work was done on the minisplit project. He only partially ran two lines, which the new contractor ended up changing because he decided to install the compressor in a new location. The contract with the new installer includes running and connecting all piping block from the distribution block to all units and the outdoor unit. The contract is basically for a full install because the old contractor didn't really do anything. My main issue is how they are going about troubleshooting and also not ever checking to see if the units actually work. Testing each indoor unit is also included in the contract. it seems really expensive and inefficient and I am wondering if there is a better way, because they plan to do the same exact thing tomorrow, simply cut out the kinked piece pressurize and hope for the best.
What BALloyd said...

Which is it? Did the new company rerun run the linesets or use the old ones?
If the contract is to run all new piping why are you here asking why you are paying extra? The contract says they are going to do it....

In which case, how are they able to throw old company under the bus?

All sounds really odd....But to answer your question. No, there is no way to check for kinks in the lineset other then feeling every inch by hand.
 
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Discussion starter · #11 ·
He used two of the old linesets that the old contractor previously ran, but adjusted them to connect to the new location where he wanted to install the box. Regardless of who caused the kinks, I would like to understand if there are better options, because repairing one kink at a time without any additional investigation seems like a waste of time and money. The line is really short it starts in a crawl space very close to where it drops into the bedroom.
 
He used two of the old linesets that the old contractor previously ran, but adjusted them to connect to the new location where he wanted to install the box. Regardless of who caused the kinks, I would like to understand if there are better options, because repairing one kink at a time without any additional investigation seems like a waste of time and money. The line is really short it starts in a crawl space very close to where it drops into the bedroom.
Read the bottom of post #10....

Even you could do it if you wanted. just squeeze and move your hand up a few inches, repeat. Youll quickly feel what its supposed to feel like and notice when it doesn't feel that way. Then you open insulation and double check.

If these haven't been started yet I'm not sure how is magically finding these kinks if he's not doing what I described. I find it even more confusing that he would even know how to read refrigerant gauges and understand the intricacies of mini splits enough to know there could be a kink. Hell, most techs don't even know that because these systems have hundreds and hundreds of speeds and the algorithm is not something you can just know.
 
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Sound like your contract is with the heat pump contractor and not through the general contractor. Is that correct?
Stop paying him extra to fulfill his contractual obligations, which it sound like is to do a complete install including all the piping.
Either have him remove all the piping and redo it properly to prevent any other kinks or fire him and get someone who will not gouge you for extras. This is criminal behavior.
Hopefully you did not pay all the money up front.

Additionally:
1. You should not run the piping for ductless in hidden spaces that you can not easily access. Can't imagine how they are getting rid of condensation.
2. There is no reason to see the piping and wiring to the indoor units. Something was done incorrectly and needs to be fixed. This may require some re-sheetrock work.

You need to stop any further progress on the mess of a job until you get this sorted out which may require your lawyer.
 
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