Inverter Type AC in Pakistan (Inverter/Non Inverter Dedicated Discussion)

[anc]

Honeywell has a plant in china.

[Deadly_Flame]

Is it still worth it to go for TCL-T5-Smart? Because I don't think I'll have an easier experience if something goes wrong — I don't know how TCL warranty works in this case.

They simply don't offer installation services here but warranty should work fine. You can call helpline for further information.

Is it still worth it to go for TCL-T5-Smart? Because I don't think I'll have an easier experience if something goes wrong — I don't know how TCL warranty works in this case.

Imo, you need to define your criteria. I've found the TCL T3 pro to be perfect for my use case. Have an old 2 ton Mitsubishi inverter downstairs and it's performance is top notch. The TV lounge merges into a small lobby stair area and dining room too, all are open yet it cools the space really nice. Same design upstairs and I've found the T3 pro to work just as well.
Before getting the T3 Pro I was looking at the flagship models and willing to overspend. But experiencing the actual performance I don't really feel the need to overspend on a flagship as there is not a huge difference between flaghship and other models specs-wise are . Get something with good warranty cover and reliable after sale services and focus on a good installation. We have 3 inverters upstairs that were installed properly and with Vacuum and they are working flawlessly and mind you the other two are 1 ton kenwood extreme, not very high end models, but are working great. The 1 Ton kenwoods were installed in Dec 2020 and no service done as of yet, only filter cleaning and working great. Drops the room temp to around 23.6 when temp is set to 24.

@Deadly_Flame How has your experience been using TCL in Islamabad?

Really great experience and very happy with the purchase so far.

[saqibhassan95]

But experiencing the actual performance I don't really feel the need to overspend on a flagship as there is not a huge difference between flaghship and other models specs-wise are .

tcl t3pro is already in the flagship lineup along with 18T5
miracle is in the midrange category
and elite is the budget option

I've found the T3 pro to work just as well.

can you share power consumption stats? and your set temperature etc?

[Deadly_Flame]

can you share power consumption stats? and your set temperature etc?

Temp was set at 24-26. Have used it only for 6 hours in May.

I've not used it much to be honest. But will share the stats.

So I turned on the AC today after about 3 weeks and it's not cooling as per my expectations. The temp at vent drops to about 13.6° max, this was after running the AC for 2 hours. The vent temperature of my 1 ton inverter in the room is dropping to 12°
Called the guys who installed it and they say that everything is fine, gas and pressure are okay. I am concerned now and can't understand what to do. The temp of the room came down to 27.8° max.

What vent temps are.you getting these days? @saqibhassan95 @krafiq

[krafiq]

I had similar issue with my previous unit.
New one is better . Vent temp goes down till 15°c. But my room is like 450 sq feet plus. It's able to cool it reasonably well.
Which one do u have? 1.5 ton? How big is the area? Do check it's ampere draw on max, by using it on 16 degrees and opening all doors and windows. See if amp draw is as per specs

[saqibhassan95]

please answer my questions (just want to know all parameters)
1. Room temp before turning on ac?
2. Your city?
3. Outdoor temperature when you were measuring vent temp?
4. Room temp/ac intake temp while vent temp was 12 or 13.6?
5. Your ac variant (want to know air volume and your set fan speed)
6. Ac Set temperature? (I'm assuming it was 16)
7. Your room volume?
8. Instantaneous Power consumption?

[Deadly_Flame]

Which one do u have? 1.5 ton? How big is the area

Have the 2 Ton TCL T3 Pro. The room is big, it's slightly more than 350 sq feet, but it opens into about a 250 sqft dining room and a pass through kitchen window.

Do check it's ampere draw on max, by using it on 16 degrees and opening all doors and windows. See if amp draw is as per specs

Don't have an amp meter to test this unfortunately. However, I simply kept the AC on with strong fan speed in order to cool down the space and it did work. The vent temp went down till 12° I guess it'll go down when the space cools down more. But the 1 ton kenwood brought it down to 11.2° when the room temp was as around 25.2°

please answer my questions (just want to know all parameters)

1. Probably around 29-30°
2. Islamabad
3. It was around 37-38°
4. Don't remember for 13.6° but at 12° it was 25.6°
5. TCL T3 Pro 2 Ton (1100, fan speed set at strong)
6. Checked at 16
7. Shared above, big room opening into a dining room without any door/wall
8. Don't know, I do not have an amp meter

[saqibhassan95]

What vent temps are.you getting these days? @saqibhassan95 @krafiq

yesterday (10th June, Lahore), ΔT was 20.2C (intake temp 31.1C. vent temp 10.9C) (at turbo, not at fan speed 5, because as you increase air volume ΔT decreases, so fan speed is important while comparing ΔT), at max ΔT I got was 22.5-23C otherwise it generally stays in the 20C range, and 22-23C is generally in low latent load conditions, with high latent load (absolute humidity at +-15g/m3), it goes down to 20C approx
and 20C is generally considered satisfactory
(I have same T3 pro 1 ton, with exact half the air volume of 2ton, 550m3, your vent stats can be compared with mine)

But the 1 ton kenwood brought it down to 11.2° when the room temp was as around 25.2°

set tcl aside, in your case, I can't understand why even kenwood ΔT is at 14C (assuming kenwood is in top notch condition)
because in my books, ΔT if not 20, at least 18-17 is acceptable if the unit is old or repaired etc
but your kenwood is at 14C
tcl at 13.6C
something is wrong with both acs in my opinion

Edit 1, today (11th June) tested again (evening)
outside temp, 35C
temp in the room before turning on ac, 33.5C, relative humidity at approx 55%
15 mins after start, up to 30 mins and onwards, ΔT was 18-18.2C throughout
intake temp, 29.9-30
vent temp, 11.7C
stable instantaneous power consumption, 1325 watts
Fan speed, Turbo

Edit 2: (at night), Outside temp is 32C
ac is consuming 290 watts/1.2 amps
fan speed, full (one step lower than turbo)
room/intake temp, 29.5
vent temp, 18.8C

[racerali]

I need Help i have a non inverter 1.5 Dawlance LVS Series 2 Days ago the Unit stop Working and Only Hot Air.AC Technician Arrived Check that the unit has low on gas so he added.He also check for a leak but All Ok.After 14 Hours The unit stop working again .Again low on gas now technician advising to remove the whole unit and wanted to Check it on Shop.
I want to know it is a wise decision to remove the whole unit or is it possible to check the leakage and repair at Home

Thanks

[krafiq]

SOP is that technician inspects the unit thoroughly at home while it's installed on the wall. Checks indoor and outdoor by removing all the covers.
Pinpoints the possible faults ( inner coil, outer coil, flare nuts, compressor, capillary in your case etc etc)
Brings new parts to your house and installs them in your presence, performs pressure/ leak test and reinstall the gas. Checks the head pressure/ psi. Job done.

[racerali]

o

What would be the Standard head pressure/ psi that i will check on him

Thanks for the Reply

[krafiq]

Someone can correct me here. For non inverters using R22 I think it was around 50-60 psi. But I cud be mis-remembering

[highroller]

Anyone here who got their AC installed from a technician who vacuumed linset in Karachi? If yes pls share technician/installer contact details. Thanks

[racerali]

Respected Members
Please Recommend a Good AC Technician Near Westriage Rawalpindi

[Thinking]

Guys i faced a very strange issue on Friday with my almost new Dawlance 1.5 Ton Proactive inverter AC.

AC was procured in 2019 however it remained mostly un used. may be used 5-10 times in last 4 years. cooling was exceptionally good and no issues AL HAMD U LILLAH.

On friday i turned it on for the first time in summers (Friday 9th June 2023) and strangely after some time only internal unit run and than started giving "E1" Error. I checked and it meant that inner and outer unit have communication issue.

i logged the complaint with dawlance. they told me that its outer board (Control unit) has malfunctioned or its cable is faulty (Just a thing that since outer is installed on roof top so electric cable and pipes between inner and outer are extended to almost 20 ft.

Dawlance technician told me that new outer board is for 22K and its not covered in 12 year warranty that came with the AC unit.

Anyways i asked them to come and check. upon verification it was found that outer board (control unit) was fine and no issue was there. also cable was tested end to end and no issue was found there too.

than they opened the inner unit and took inner board out and took it with them for verification. even though since inner was working properly and giving an error so ideally no issue with inner board too. anyways they took it with them,

now today i checked and they told me that since older electric cable has a joint so i need to install new cable (one piece for complete length), gonna cost probably 2000-2500 Rs.

I am waiting for dawlance technician to show up.

still dont know the actual issue which needs addressing.

last i verified and AC was working perfectly without any issues in April 2023.

Dont know what to do. Any guidance would be helpful. JAZAK ALLAH

[helper_learner]

Respected MembersPlease Recommend a Good AC Technician Near Westriage Rawalpindi

You, We, all of us. better than any Technician.

[ch.talal]

You don't take vent temperature by setting air throw at full. Make it minimum, run at 16C and make sure doors are closed. Your area required to cool is very big.

Also when you turn on AC after long time cooling may be decreased. Reason: dusty condenser, dirty filters etc

If your room is cooling fine then ignore whatever vent temp you are getting.

Service air conditioner twice in summer for maximum performance and reducing electric bill.

[ch.talal]

E1 Communication error means there is some fault in cable causing outdoor to not communicate with indoor. They should have tested all 4 wires for continuity.

I don't know how they assumed that its the fault of PCB.

[Thinking]

Thanks, Issue resolved after changing the cable.

[ch.talal]

Respected MembersPlease Recommend a Good AC Technician Near Westriage Rawalpindi

You, We, all of us. better than any Technician.

Indeed.

Installing AC is a technical job but if you learn it you could do it better than any technician here.

From past 1.5 year I am now servicing/installing all my new AC all by myself. Even offer help to my very close relatives for free. (part time stuff).

Got all kind of tools starting from flaring tools to gauges, portable welding setup to portable pressure washers (battery powered), clamp and multimeters and a complete tool box with all kinds of large and small spanners and even have a torque wrench and laser RPM meter that even car mechanics don't have..

Actually love collecting new tools and handy gadgets.