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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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C70/Volvo Heater BlowersViews : 577 Replies : 13Users Viewing This Thread : |
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Mar 21st, 2019, 11:06 | #1 |
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C70/Volvo Heater Blowers
Hi All
Bit of info needed as I can,t find anything in the owners manual. When you set the temperature to say 21 degrees and the blower starts blowing warm air, when the temperature is reached or passed does it start to blow out cooler air or is there possibly a fault. Turn the temp. up and it immediately blows hotter air. I'm asking this as I don't really have a clue about the workings of my car and every day almost brings a new learning experience. |
Mar 21st, 2019, 12:20 | #2 | |
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Mar 21st, 2019, 12:23 | #3 | |
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Doesn't happen on my XC60 or C70 though. No faults on VIDA either. At least it's not just me!!
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Mar 21st, 2019, 16:55 | #4 |
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Ok, thanks to Clan & zapcity for the info. but I have been left slightly puzzled. This is due to being a technophobe! Which way is the correct way to work. I ask this as my C70 works differently to zapcity's C70, however he has one car that works the same and 2 that don't. Is it dependant on your model?
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Mar 22nd, 2019, 13:46 | #5 | |
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I've read a few threads on here from others that seem to have similar heating 'issues'. To clarify, my XC70 from cold will heat the cabin as normal. All vents provide hot air up to set temp. Once the set cabin temp is reached, the windscreen, top and dash vents then emit cold air (as Clan says this varies on the outside temp.). On most days this air is very, very cold and is emitted at quite a rate (about fan speed 4). It is enough for anyone unfamiliar to ask why its so cold and draughty in the car, even when set at 23-25. During this time, the footwell vents continue to emit hot air. Measuring the cabin temp. at the sensor, it matches the set point due to it being nearer the floor and picking up the hot airflow from the floor vent, but the dash top is lower by 2-3 degrees. As the air emitted from the dash top is cold and fast moving, it feels much colder anyway. I get around this by switching to manual hot air from the dash vents only, increasing the temp. and reducing the fan speed to min. This cuts off the cold air emitting from the top of the dash by creating a hot air barrier. My XC60 and C70 when reaching the set temp., just emit a very gentle airflow that is similar to the cabin temp., so no noticeable cold airflow.
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Now: - MY12 XC60 SE Lux Premium D3 Geartonic AWD, MY09 XC70 D5 SE Lux Geartronic AWD, MY08 C70 SE Lux D5 Geartronic & 1994 480GT Previously: - MY08 V50 2.0D SE Lux, MY08 S40 1.8 SE, MY10 C70 SE Lux 2.0D Powershift, & ’99 V40 2.0T SE Lux |
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Mar 22nd, 2019, 14:20 | #6 | |
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Mar 22nd, 2019, 14:32 | #7 |
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Thanks to you both, in short, it would appear my heater blower is working as it should and I just need to get used to it and adjust as required. Oh happy days.
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Mar 22nd, 2019, 14:35 | #8 |
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Indeed , it is best to set it to 20C ( or within a couple of degrees either way) and let it get on with it , you have to tolerate the high fan speed for a few minutes when you start your journey though ...
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Mar 22nd, 2019, 14:39 | #9 |
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Thanks Clan, just checking something not mentioned. I'm normally at 21 degrees, but not with the AC on, can't remember last time I used AC.
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Mar 22nd, 2019, 14:42 | #10 |
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if the outside is cooler than 21 c the AC won't come on , if the outside is over 21C ( Like last summer ! ) It will come on to reduce the temp to 21 C . Also the AC Comes on when the system is defrosting , so best leave AC switch on all the time … AUTO does that for you anyway ..
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