Good points on keeping the compressor healthy.The00Dustin wrote:This post feels like it's loaded with misinformation... but turning off the A/C shouldn't be necessary... an A/C that is always run is less likely to seize up....
I don't get what you're on about with necromancers. I see no wizardry or witchcraft here. That said, I sincerely thank you for clearing up the bit about switching the A/C button to OFF. My 2009 manual instructs me to leave the A/C switched ON for dehumidified heating, and to switch it OFF for heat only (no dehumidifier). Apparently, either way is not a problem for the car, but it DOES mention that heating with the A/C switched to OFF can result in fog collecting on the interior glass surfaces. I reckon that leaving the A/C switched to ON is the best method and also beneficial to the life span of the compressor, so I shall leave the A/C button switched ON going forward..The00Dustin wrote:This post feels like it's loaded with misinformation, so I'm just going to drop this in here (post is from 2010, it needs readers, not necromancers):
defrost-is-hard-to-get-right-t458805.html
I highly recommend the OP and everyone else who thinks they need to turn the A/C off when Auto is on read the entire thread and then consider going to a mechanic if they seriously can't get heat with the A/C on (maybe it takes a fully warmed up engine vs just a little heat from the engine, and maybe it is convenient not to wait for that, but turning off the A/C shouldn't be necessary beyond that).
Also, since it may not be mentioned in that thread or this forum, I believe the other reason the A/C light stays on is because an A/C that is always run is less likely to seize up.
On the off chance that you're serious here (and for anyone who might need to know even if you're joking): a thread from years ago is considered a "dead thread" in most forums. Posting in such a thread "brings it back to life" and is referred to as "necro posting" (or something like that). This is usually frowned upon, and while I don't understand why it is frowned upon (I can see how it is pointless in many circumstances, but not really harmful), the comment on necromancers vs readers was a friendly reminder to let the thread I linked to rest in peace.Larz wrote:I don't get what you're on about with necromancers. I see no wizardry or witchcraft here.
Agreed!EdBwoy wrote:.......My understanding of the heat intake in a car is just how much heat exchange is allowed from the coolant through the heater core into the cabin. So, regardless of what temperature you set it to, the time taken to achieve your temp setting depends on the engine coming to temperature. If this were a resistance heater then, maybe I see max temp relating to high current and maybe more wear?
...but I'm going to think about this a little deeper during the day.
EDIT: I'd say yes, in auto the blower is slowly ramped up for comfort. The makers understood that depending on coolant temperature, there is no use blowing air at maximum speed at anything other than the windshield.
Hmmm ... I interpreted the slow increase in fan speed, etc., to the desire to prevent blowing freezing cold air in your face at high speed. So they let things and the heater warm up a bit before the air kicks in. Makes for a more comfortable experience for the people in the car.TDot wrote:Also, I've always been told never to turn the heater on full right away be ause you'll damage it, and I think that is the reaon when set to auto this heater slowly comes on as the car heats up.