Results 51 to 91 of 91
-
16-08-2010, 07:16 AM #51
Re: What should engineer be checking?
I do wonder why your techie didn't get on and move the unit to another port of the valve while he was there. Seems the obvious thing to do - he even suggested it himself. Another hour or so of labour would have been more palatable had he left the unit working as it should do. It's not like your unit is hard to reach and work on is it? It's ground level if I remember correctly?
-
16-08-2010, 08:49 AM #52
-
16-08-2010, 09:51 AM #53
Re: What should engineer be checking?
Not Decafe Tea as well! Did he hoover up as he was leaving, and did he pay you for your expert knowledge?
-
16-08-2010, 10:02 AM #54
Re: What should engineer be checking?
I have idea how to make diagnostics by the handmade
To write here or to private message?Last edited by bigor_2; 16-08-2010 at 11:07 AM.
-
16-08-2010, 02:27 PM #55
Re: What should engineer be checking?
This is the funniest post ive read. Is this old school caffeine free engineer who wanted 60 quid for diagnosing it but didnt want to port the unit on this forum out of interest?
-
16-08-2010, 10:17 PM #56
Re: What should engineer be checking?
You should have got him a double espresso, he might have been up for moving the unit to a different port while he was there.....
Caffine is the only thing that keeps me going sometimes...
-
16-08-2010, 10:35 PM #57
Re: What should engineer be checking?
out of curiosity what does a employee of a facilities company cost his company taking into account pensions office space etc would the hourly cost approach £60 /hour is this reasonable
-
16-08-2010, 10:44 PM #58
Re: What should engineer be checking?
IR Units
http://www.allqa.com/IR.htmBrian - Newton Abbot, Devon, UK
Retired March 2015
-
16-08-2010, 10:55 PM #59
-
16-08-2010, 10:58 PM #60
-
16-08-2010, 11:02 PM #61
Re: What should engineer be checking?
Interesting read Brian, thanks for the link.
Not sure if I am missing something though... you said that it is not a good idea to use infra red?
The engineer came to the same conclusion as me.
The site quotes:
"Monitoring Equipment
You can use your noncontact thermometer to check more than just the temperature of food. You can also evaluate the performance of your equipment and machinery.
- Detect hot spots or leaks by taking sample spot readings of freezers, walk-in coolers, refrigeration lines, compressor motors, electrical, and HVAC equipment."
-
16-08-2010, 11:11 PM #62
Re: What should engineer be checking?
Yep, fair comment, but bear in mind the size of the tube and the size of the sensing zone.
Also the emissivity of the tube compared with the setting of your unit.
I'm not saying that they don't have their uses but you need to be aware of their inaccuracies.
An example, which may be wrong, infra-red measures the pipe and it shows it is cold, contact thermometer measures the pipe and tells you what the temperature actually is. (over simple, I know)Brian - Newton Abbot, Devon, UK
Retired March 2015
-
16-08-2010, 11:16 PM #63
-
17-08-2010, 10:37 AM #64
Re: What should engineer be checking?
Hi there,
any good engineer would do his own diagnostic.
He found the fault, tried to fix it and after this didn't work he gave you other options to fix it.
Sounds reasonable to me!
Swapping pipes and electrical to the free port shouldn't take too long, why didn't you get him to do it straight away? That would have saved some time, he wouldn't have to come back again.
-
21-08-2010, 09:13 AM #65
Re: What should engineer be checking?
Hey Richard, did you decide what to do about this? Going to bother getting it fixed before the Autumn/Winter cold sets in?
-
21-08-2010, 01:55 PM #66
Re: What should engineer be checking?
I want to get it fixed as I have been told its possible if the fan is not running on one of the units thats turned off that liquid could get back to the compressor.
I have spent so much getting things fixed on this unit, all down to cowboy engineers that havent done it properly in the first place rather than the fault of lg directly. I accept the control strategy is rubbish on the multi split range from LG.
Cost is one issue that may cost to put this right, the engineer says that its prob a bit of swarf in the valve from when the have braised the pipework etc but as per LG the valve is not serviceable and must be replaced.
Other option is to swap pipe work over but if I paid £60 for work not involving any equipment then to have it pumped down etc and then vac tested its gonna be 4 hours work at least... Prob looking at about £300 might as well save that towards getting something decent put in?
-
21-08-2010, 04:51 PM #67
Weren't you planning to move as you were in rented accommodation? If so id stop worrying about the value of the system/protecting it from floodback. In your next house do what I did and get single splits. Also get a competent engineer to install or do it yourself if you feel competent and can purchase the correct tools and equipment. Cowboys will not worry too much about system cleanliness, insulation gaps, quality of vacuum or quality of flares.
I guess if you buy from a reputable company they install and give a 3 year warranty so they have a vested interest in putting it in properly.
-
21-08-2010, 06:29 PM #68
Re: What should engineer be checking?
Having pipes swapped, pumping down etc is not that easy. Maybe if its run for a while the swarf will move on(hopefully).
Should the filter drier not have caught the junk?
-
21-08-2010, 07:55 PM #69
Re: What should engineer be checking?
This has been great reading!!
Aint this just a peice or crap stuck in the solinoid valve can it not be stripped and cleaned out or blow out. I work on alot of cellar cooling units and if there is going to be a place were swarf will lodge its the solinoid valve..
-
21-08-2010, 10:38 PM #70
-
22-08-2010, 09:09 PM #71
Re: What should engineer be checking?
I had this on a Daikin multi once. Turned out to be the eev sticking open.
This could either be the same, or the eev getting the wrong command - that may be possible to varify with LG tech. I'd try that first..
-
22-08-2010, 09:58 PM #72
-
22-08-2010, 10:17 PM #73
Re: What should engineer be checking?
Looks like you're into changing the eev then.
-
22-08-2010, 10:51 PM #74
Re: What should engineer be checking?
-
23-08-2010, 01:58 PM #75
Re: What should engineer be checking?
Evacuating the system back into the compressor isnt a big job at all. I dont know anything about multisplits but reporting the pipes cant be that hard? especially if you dont add on to existing pipes ie the bad port is furthest away or there is some slack on the pipework. If he charges 30 an hour it probably 4 hours work so 120 .Thats still a bargain, commercial businesses can get charged 500 or more for something like that.
-
23-08-2010, 05:54 PM #76
-
23-08-2010, 08:33 PM #77
Re: What should engineer be checking?
Your probably right but will it last 4 years? Reason fridges last so long is they are sealed systems factory made, it all goes pear shaped when the systems have to be assembled onsite where the human element comes into it.
Why 4 years? Property will probably be rock bottom in 2 or 3 years , probably best to start saving for that time, get a good credit rating, it hasn't really hit yet in the UK but will soon.
-
23-08-2010, 08:36 PM #78
Re: What should engineer be checking?
-
23-08-2010, 11:03 PM #79
-
24-08-2010, 06:47 PM #80
-
24-08-2010, 07:27 PM #81
-
24-08-2010, 07:34 PM #82
Re: What should engineer be checking?
Yep that is the whole idea
-
25-08-2010, 03:14 AM #83
Re: What should engineer be checking?
-
25-08-2010, 03:39 AM #84
Re: What should engineer be checking?
Yeh but why would you get a mortgage that costs £900 unless the property was worth that and the majority was paying off the loan/interest.
I pay £575 in rent for a 2 bedroom flat but I have friends who pay nearlly £1000 a month to rent a city centre apartment... its madness! THey could own one for that much!
I have another friend who has a beautiful 5 bedroomed house with loft conversion and pays less than me on his mortgage so I guess
Its about being sensible isnt it! Anyway lol were getting
-
13-09-2010, 06:03 PM #85
Re: What should engineer be checking?
Right guys!
Had my engineer over to swap over unit B to port D.... solved that problem.
Now the heating performance has improved as less refrigerant going to unit D when it is supposed to be closed/open 10% however a new issue has appeared.
When units A & D (both same style indoor unit) are both at thermostat off and unit C is at thermostat on the coil temps are being weird again. Unit A will have a coil temp of whatever unit C is meaning the fan will stay running even though its not calling for heat. Unit D (newly swapped over) will have a coil temp of 26C and the fan will pretty much stay off all the time. (length distance between unit A&D are about 5metres. If I turn unit A&C to thermostat off and unit D to heating the coil temps will be the same on units A&C (approx 38C) however if I turn C&D to thermosat off and have unit A heating then coil C will match the temperature of the unit at thermostat on but D will be cooler at about 26C.
The ones that run at 38C mean the room overheats
Very odd behaviour but seems unit to EEV D that it runs cooler. Also the connector plug for this EEV D is smaller than A, B & C. so less wires going to the board from the plug.
Now after ive confused you all with that can anyone offer an explanation? We have told LG who seem baffled by it as really the EEV's should all be behaving like EEV D as the EEVs only open about 10% on units that are thermostat off or turned off to avoid overheating of the room, just wondering why all the others apart from D get as hot as the ones that are calling for heat.
Much appreciated and thank you as per usual
-
14-09-2010, 11:21 AM #86
Re: What should engineer be checking?
LG Technical have said its possible that from all the engineers that have dealt with the unit if it wasnt initially installed properly then its possible there are flakes in the pipework from the brazing because the pipework was never blasted with nitrogen when the first guys fitted it and this could be restricting the EEV's.
I questioned why all the eevs close down in cooling and pipework stays at ambient they state that it will be more noticeable in heating.
They have also advised to check the coil probes however 1 out of the 3 units have had new coil probes a few months ago and that is one of the units that allows the coil to reach the same temperature as the one that is calling for heating.
-
15-09-2010, 07:10 PM #87
Re: What should engineer be checking?
Might be worth changing the coil probes anyway - after all, it's them that tell the electronics and therefore the eev's what to do.
How many brazes were in the system? - I would not have thought there would be many on your installation.
-
15-09-2010, 07:47 PM #88
-
26-09-2010, 09:03 AM #89
Re: What should engineer be checking?
Deleted as new post opened.
Last edited by back2space; 26-09-2010 at 09:36 AM. Reason: Opened new post
-
01-10-2010, 07:27 AM #90
Re: What should engineer be checking?
up that was awesome
-
01-10-2010, 01:39 PM #91
Re: What should engineer be checking?
Oh 'twas on the Monday morning when the 'fridge man came to call, they'd painted over the gas tap, I wasn't getting gas at all.....
If thirty quid an hour is outrageous, then I shudder to think how much you paid for the other bunch of knuckle draggers...Karl
Similar Threads
-
An engineer.
By chillin out in forum Chit Chat & Service StoriesReplies: 0Last Post: 23-07-2008, 11:06 PM -
Engineer Definition
By botrous in forum TrainingReplies: 26Last Post: 14-06-2008, 05:37 AM -
Engineer Of The Month
By WebRam in forum Chit Chat & Service StoriesReplies: 9Last Post: 28-05-2008, 08:14 PM -
Can anyone recommend an engineer in/near Harrow, West London?
By paulbo in forum DomesticReplies: 4Last Post: 15-10-2006, 11:37 PM