Advice Please

KernowRover · 23rd August 2018, 15:10

Hello All

I have just had my aircon regassed so I am using it for the first time.
One thing I have noticed is when I switch it on the temperature will be set to 16 on both sides if I turn it down to LO it automatically reverts to econ.
Is this normal?
Any advice would be greatly appreciated.

Regards
Tom.

Slaya · 23rd August 2018, 15:13

I believe mine used to do the same thing in my last ZT. Not working at all in my current car so can't confirm...

Teflon · 23rd August 2018, 16:27

Hmmm. That doesn't sound right to me. Just been out and checked mine and setting it to "Low" doesn't switch it to "Econ"

There is a built in diagnostic check you can run which may help. See here: https://the75andztclub.co.uk/forum/s...hlight=climate

Cliff

OddSox · 23rd August 2018, 18:33

Quote:

Originally Posted by KernowRover

Hello All

I have just had my aircon regassed so I am using it for the first time.
One thing I have noticed is when I switch it on the temperature will be set to 16 on both sides if I turn it down to LO it automatically reverts to econ.
Is this normal?
Any advice would be greatly appreciated.

Regards
Tom.

You have SET it to LOW...Econ mode kicks in on LOW mode.

trikey · 23rd August 2018, 18:34

Mine does the same when switched to low, I’m sure they are all like that.

Teflon · 23rd August 2018, 19:08

Quote:

Originally Posted by OddSox

You have SET it to LOW...Econ mode kicks in on LOW mode.

Quote:

Originally Posted by trikey

Mine does the same when switched to low, I’m sure they are all like that.

Mine doesn't

. Just been out again to check again in case I'm going mad. Thinking about it, I can't see why it would. Surely "Low" mode should lower the cabin temperature the maximum amount. How could it do that if it switched to Econ mode where the aircon is effectively switched off?

Cliff

roverbarmy · 23rd August 2018, 19:17

I think that it depends on the outside temperature. The control unit monitors the outside temperature (no point pulling very hot air in to cool the interior).

SD1too · 23rd August 2018, 19:29

Quote:

Originally Posted by roverbarmy

I think that it depends on the outside temperature. The control unit monitors the outside temperature (no point pulling very hot air in to cool the interior).

You could be right Mike, but I don’t share your confidence in the logic of the ATC ECU. I’m sure you’ve noticed that when the car has been standing outside on a blisteringly hot day the interior is usually at a higher temperature than the ambient air. In these circumstances what does the control unit do? It selects ‘recirculating’ mode.

I’ve carried out a study of the ATC system in various conditions and I’m in no doubt that some degree of manual control is preferable most of the time.

Simon

Graham1961 · 23rd August 2018, 19:32

When the Climate control is set to LO, it's on full cooling mode and no longer on AUTO function.

I will check my own car later on to confirm, but i'm pretty certain the AUTO button light goes out when set to LO.

OddSox · 23rd August 2018, 19:33

Quote:

Originally Posted by Teflon

Mine doesn't

. Just been out again to check again in case I'm going mad. Thinking about it, I can't see why it would. Surely "Low" mode should lower the cabin temperature the maximum amount. How could it do that if it switched to Econ mode where the aircon is effectively switched off?

Cliff

You are not going mad.

When in Econ Mode the Aircon is NOT actually switched off...

23rd August 2018, 15:10	#1
KernowRover Posted a thing or two Rover 75 Saloon, 2.5 V6 Join Date: Feb 2013 Location: Bude, Cornwall Posts: 1,207 Thanks: 239 Thanked 79 Times in 67 Posts	Advice Please Hello All I have just had my aircon regassed so I am using it for the first time. One thing I have noticed is when I switch it on the temperature will be set to 16 on both sides if I turn it down to LO it automatically reverts to econ. Is this normal? Any advice would be greatly appreciated. Regards Tom. __________________ KernowRover Avid 75 Fan The Walnut Bling King. http://i1255.photobucket.com/albums/...ps0wrx8vrj.jpg

23rd August 2018, 16:27	#3
Teflon This is my second home Lagoon 2.0 V6 75 Conn SE Saloon Join Date: Nov 2006 Location: Chertsey Posts: 5,201 Thanks: 2,825 Thanked 2,920 Times in 1,570 Posts	Hmmm. That doesn't sound right to me. Just been out and checked mine and setting it to "Low" doesn't switch it to "Econ" There is a built in diagnostic check you can run which may help. See here: https://the75andztclub.co.uk/forum/s...hlight=climate Cliff __________________ No. 4 of 6

23rd August 2018, 18:34	#5
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,756 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Mine does the same when switched to low, I’m sure they are all like that. __________________ Lest we forget..

23rd August 2018, 19:17	#7
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,048 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	I think that it depends on the outside temperature. The control unit monitors the outside temperature (no point pulling very hot air in to cool the interior). __________________ Oil in my veins!

23rd August 2018, 19:32	#9
Graham1961 Moderator / RS East Scotland Rover 75 1.8 Conn Se saloon Join Date: Nov 2007 Location: North Berwick, East Lothian Posts: 4,738 Thanks: 4,143 Thanked 753 Times in 563 Posts	When the Climate control is set to LO, it's on full cooling mode and no longer on AUTO function. I will check my own car later on to confirm, but i'm pretty certain the AUTO button light goes out when set to LO. __________________ Graham.

23rd August 2018, 15:13	#2
Slaya Loves to post MG ZT V6 160+, MG TF 135, Focus 1.6 Zetec Join Date: Mar 2010 Location: Coventry Posts: 285 Thanks: 129 Thanked 68 Times in 50 Posts	I believe mine used to do the same thing in my last ZT. Not working at all in my current car so can't confirm...

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