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

[dms664]

Old stock no warranty?

[estee.819]

yes this is what there official customer service whatsapp account +923097777397 confirmed that all Gree air conditioners have warranty of 10 years compressor, 4 years on PCB Chip, 2 years on evaporator/condenser and 1 year on parts/service on all new stock from 15th February,2022.

[krafiq]

Hello. Since you are using 1.5 ton miracle, kindly I have 2 queries about it
1. Does it have generator mode? If so, what are the amps that can be locked via remote?
2. Dou think that bad smell problem is a manufacturing fault of this unit?

[hasankhurshid29]

I did received the warranty for both evaporator and condenser.

[dms664]

Your ac made year?

[jawadhussain322]

I have purchased Gree 18fith6G recently. It is 1.5 ton inverter AC and after setting the temp to 28 or 29 it drops the ampere to 3.5A slowly and then room temperature keeps on decreasing i.e 27°C and compressor trips. It should drop the ampere further but it doesn't decrease below 3.5A and compressor trips and starts after sometime when room temperature increases.
Is anyone else facing same issue?

[hasankhurshid29]

Are you using turbo/Strong fan mode? As it increases the amps

[jawadhussain322]

Fan speed is normal. But inverter compressor should not trip unlike non-inverter AC.

[ch.talal]

I have purchased Gree 18fith6G recently. It is 1.5 ton inverter AC and after setting the temp to 28 or 29 it drops the ampere to 3.5A slowly and then room temperature keeps on decreasing i.e 27°C and compressor trips. It should drop the ampere further but it doesn't decrease below 3.5A and compressor trips and starts after sometime when room temperature increases.
Is anyone else facing same issue?

This is the issue of programming. These ACs are programmed that way.

My TCL miracle almost does the same. When outdoor temp is 35+, amperes don't fall below 3.0A (at 220V) but simply trips to retain set temperature.

When outdoor temp drops below 35°C it starts lowering down the amperes further and maintain running compressor at lower power. The lowest i observed is 1.2A (at 220V) so far when outdoor temperature was <26 due to rain.

I believe this is very odd programming and inverter Air conditioner should drop amperes to lowest point irrespective of outdoor temperature.

The continuous tripping/starting make you feel that room is getting hotter.

[ch.talal]

Hello. Since you are using 1.5 ton miracle, kindly I have 2 queries about it
1. Does it have generator mode? If so, what are the amps that can be locked via remote?
2. Dou think that bad smell problem is a manufacturing fault of this unit?

1. Yes. Mine locks at 3A, 5A, 6A. It's an older model. I have heard in newer models it locks at 3A, 4A and 6A. The gen mode settings in my model restore to Off state after power failure. It's a programming failure. Don't know what kind of retards made programming for this AC.

2. Smell is reduced a lot after recent service. Only appeared when outdoor shutdowns and only fan is running. Can't be a manufacturing defect.

[helper_learner]

My TCL miracle almost does the same. When outdoor temp is 35+, amperes don't fall below 3.0A (at 220V) but simply trips to retain set temperature.

When outdoor temp drops below 35°C it starts lowering down the amperes further and maintain running compressor at lower power. The lowest i observed is 1.2A (at 220V) so far when outdoor temperature was <26 due to rain.

I think it is like that because of head pressure, when the temperature is high there is more minimum energy required to rotate the compressor and when temperature is low less minimum energy is required to rotate the compressor so consumption drop to 1.2 amp...

[saqibhassan95]

This is the issue of programming. These ACs are programmed that way.

My TCL miracle almost does the same. When outdoor temp is 35+, amperes don't fall below 3.0A (at 220V) but simply trips to retain set temperature.

When outdoor temp drops below 35°C it starts lowering down the amperes further and maintain running compressor at lower power. The lowest i observed is 1.2A (at 220V) so far when outdoor temperature

my t3 pro (1 ton) doesn't trip like this
like it's lowest rated power is 1 amp
last night, 12-1 am, it was 1.6 amps, then 1am-6 am it was at 220-230 watts (1 amp) throughout and didn't trip at all

[anc]

exactly this is what i have observed in Kenwood as well, but not in PEL

[ch.talal]

What was the outdoor temperature last night?

[krafiq]

Which model in Kenwood? 1838S?

[saqibhassan95]

I'm in lahore, you can check temp on some weather site, i believe around 27-29C

[ch.talal]

My TCL miracle almost does the same. When outdoor temp is 35+, amperes don't fall below 3.0A (at 220V) but simply trips to retain set temperature.

When outdoor temp drops below 35°C it starts lowering down the amperes further and maintain running compressor at lower power. The lowest i observed is 1.2A (at 220V) so far when outdoor temperature was <26 due to rain.

I think it is like that because of head pressure, when the temperature is high there is more minimum energy required to rotate the compressor and when temperature is low less minimum energy is required to rotate the compressor so consumption drop to 1.2 amp...

Right.
But I believe if pcb is programmed better you could save more electricity.

Personally in my observation, with just 1 degree C difference AC starts behaving differently.

For example if its 35C outdoor AC will run at (3A x 220v) then enter tripping mode after achieving set temperature.

If it's 34C AC drops amperes to 2A - 2.2A (at 220V) and trips.

If it's less than 32 it further drops to 1.6A (at 220V) and trips or sustain.

Below than 28C outdoor, it could drop to 1.2A and sustain running compressor.

By the way if manufacturers use permanent magnet DC compressor they could further reduce power consumption by 30 percent.

AC to DC to AC conversion cause lot of energy losses and reduce efficiency.

Permanent magnet DC motors are a lot more energy efficient than AC motors that utilize electromagnetism.

[ch.talal]

I'm in lahore, you can check temp on some weather site, i believe around 27-29C

That's why. At 27 - 28 outdoor AC could drop amperes to 1.2A or lower. That's what i have also mentioned.

But I was talking about something else. The AC behavior at higher temperatures.

[helper_learner]

Right.But I believe if pcb is programmed better you could save more electricity

Yes i also think so, actually it should be programmed and setup like that it should keep reducing the current till it stops rotating (rotating can be sensed the same way it is done in cpu fans i.e. reading the generated frequency). Once it stops , it (PCB) increases the current a bit so it can start and keep running... this way it will use the least possible energy at certain temperature...

Companies may call this process ^^ as learning period...

This whole process just happen once in say 1 month and every other time it can use the previously calculated amount of current at certain temperature...

[helper_learner]

Suggest ac repair service in karachi near north nazimabad, ac gas leaked away from pipe i believe.... so need to refill gas and replace pipes...

I believe there is no decent workshop in karachi

@Xulfiqar
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