cornishboater

Well-Known Member

• Oct 22, 2019

• #1

Just a little one here, now that winter is on its way I have been trying out the heating after replacing motors/sensors etc. No page fault any more now and all is working well. However, when the hvac is on auto whenever I adjust the temp on the right the auto goes off. It comes on as soon as you press the button but goes off as soon as you adjust the temp. This doesn’t occur on the left, the heat/cold work fine and there are no faults registering on the Nano. Any ideas? Not really a huge issue just another one of those little annoyances!
Cheers

 

Dopey

Well-Known Member

• Oct 22, 2019

• #2

pull that switch out and give it all a good clean, sees like something might be stuck, or the contacts that turn it off and on

 

cornishboater

Well-Known Member

• Oct 22, 2019

• #3

Just seems odd as the temp switch responds even with the lightest touch, I would have thought that if the contacts were iffy it would not respond so well. Just looking into it it seems to happen when adjusting above 25c. I got this rebuilt hevac head from Marty a while back so I don’t think it can be anything serious. As I say, just an annoyance rather than a problem, just wondered if anyone else has had the issue. I have done the “tinternet” bit but haven’t found anything similar.

 

RangeRoller dt

Well-Sprung Member

• Oct 22, 2019

• #4

It’s on auto - pressing anything cancels auto mode - as pressing anything is a manual input (ie not auto)
Simples

 

cornishboater

Well-Known Member

• Oct 22, 2019

• #5

The left one you can adjust the temp and it stays in auto mode, the right one adjusts up to 24/25 then cancels the auto. It always use to remain in auto mode until you reached hi or lo

 

RangeRoller dt

Well-Sprung Member

• Oct 22, 2019

• #6

The drivers side overrides the pass side I think, it’s in the manual somewhere

 

cornishboater

Well-Known Member

• Oct 22, 2019

• #7

It’s a bit weird then as it has only just started to do this, always stayed on auto until hi or lo was reached.

 

Datatek

Well-Known Member

• Oct 23, 2019

• #8

I never use Auto mode, but as far as I know as has been said, any manual input cancels the Auto mode.

 

wammers

No longer with us, RIP

Donater

• Oct 23, 2019

• #9

The temps passenger side are set more than 6 degrees higher or lower than the drivers side The Hevac automatic will not work.

 

Last edited: Oct 23, 2019

cornishboater

Well-Known Member

• Oct 23, 2019

• #10

Not sure why but all is back to normal now, the auto stays on when adjusting temps! Go figure, a self fixing fault..... (for now)