Heat pump being used or not?

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Scratch
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Post by Scratch » Tue Oct 12, 2021 1:34 pm

Sorry if this may have been covered before but I couldn't find the answer.
How do you know if the heat pump is actually working? And if there isn't some symbol shown to verify it has cut in, how would you know if it's faulty or not?

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Daveion
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Post by Daveion » Tue Oct 12, 2021 2:24 pm

I havent checked this myself but would have thought that standing outside the car, maybe bonnet up, you would hear the compressor and or condensing fan when its running. Just make sure you set a temperature that will bring it on.
It may too quiet to hear inside the car with the fan running.
Im not aware of any indication running light.
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Daveion
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Post by Daveion » Tue Oct 12, 2021 2:27 pm

Daveion wrote:
Tue Oct 12, 2021 2:24 pm
I havent checked this myself but would have thought that standing outside the car, maybe bonnet up, you would hear the compressor and or condensing fan when its running. Just make sure you set a temperature that will bring it on.
It may too quiet to hear inside the car with the fan running.
Im not aware of any indication running light.
....and of course you are getting the temperature you dialled in!
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scott28tt
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Post by scott28tt » Tue Oct 12, 2021 2:59 pm

Presumably it has a sensor (like everything else in the car) so it would tell you if it's not working, but there's no visual indicator in the car when it is working.
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beacon39
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Post by beacon39 » Tue Oct 12, 2021 4:08 pm

I asked this question of my dealer after having had my car for a few days and not finding anything about it in the manual. He said it was automatic operation. Don't know about a 'not working' indicator. I read somewhere that the eNero draws about 1.75 kW with a heat pump and 5.5 kW with conventional heating. Perhaps that would be an indicator of whether it's working or not.
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Scratch
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Post by Scratch » Tue Oct 12, 2021 4:09 pm

scott28tt wrote:
Tue Oct 12, 2021 2:59 pm
Presumably it has a sensor (like everything else in the car) so it would tell you if it's not working, but there's no visual indicator in the car when it is working.
So if we assume there is a sensor, how would it tell you if it's not working?

MotMot
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Post by MotMot » Tue Oct 12, 2021 4:18 pm

By having two... this is where Boeing went wrong with the 737max (probably an air speed sensor is more important to a plane than whether the heatpump is working on a car though....)

beacon39
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Post by beacon39 » Tue Oct 12, 2021 4:21 pm

No, you need three. If you only have two, you don't which one is functioning properly. That's why planes normally have three.
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Scratch
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Post by Scratch » Tue Oct 12, 2021 4:26 pm

Thinking out loud now. If there is no indication that the heat pump is working or not, how do we know whether they have actually fitted it to the car? Or just fitted a placebo?

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Daveion
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Post by Daveion » Tue Oct 12, 2021 4:36 pm

scott28tt wrote:
Tue Oct 12, 2021 2:59 pm
Presumably it has a sensor (like everything else in the car) so it would tell you if it's not working, but there's no visual indicator in the car when it is working.
I also think that is correct. It must have a feedback control.
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