headgasket
Posts: 1
Joined: Mon Dec 02, 2019 11:56 am
Delivery Date: 02 Dec 2019

Re: has your Leaf's PTC heater failed? reply here

Tue Dec 17, 2019 7:49 pm

2013SL. earlier this year there was a burnt smell like when a fuse blows. Then in the fall when I turned on the defrost, no heat. Super pissed. Then I noticed that if I select HEAT only I was getting consumption and some heat from the pump, so at least I had something. Still the PTC heater is almost a sefety feature in an electric car... Now the heat pump look intermittent; sometimes it wont start (cannot hear the compressor, no electricity draw). Up to now the leaf had been a super pleasant urban vehicle, peppy, fun to drive. But less than 1 year out of warranty, this is quite a bummer, I dont think this is acceptable. I think nissan needs to address this even if out of warranty if they dont want to lose me to you know who...

gcsnb
Posts: 1
Joined: Mon Jan 20, 2020 10:09 am
Delivery Date: 06 Sep 2018
Leaf Number: 315022

Re: has your Leaf's PTC heater failed? reply here

Mon Jan 20, 2020 1:30 pm

It seems that my 2018 Leaf fails to heat below -20C. once it warms up to -15C or so it kicks back in.
it happened once last winter only a couple months after getting the car, and 3 times this winter
Definitely not a Fuse problem, my guess is a sensor or software not choosing the correct heatpump/resistance method.
My problem is im 300KM from the nearest nissan dealer to look at this while it happens.
I have an appointment in June for the rear view camera recall but how can I prove the heater was a problem to review then?
Temperature was -23 this morning, battery 74%, and climate control shows less than .2 Kw with the seat/steering wheel heaters on.
Indicates no draw on the resistance heater.

Younio
Posts: 2
Joined: Sat Aug 06, 2016 7:45 am
Delivery Date: 05 Jun 2016
Leaf Number: 402127

Re: has your Leaf's PTC heater failed? reply here

Mon Jan 20, 2020 4:23 pm

My Heater also failed with the same 2 fault codes. I tried to find a replacement one but they are like 800 EUR + installation costs.

So I searched a bit and found a guy that installed a couple of 12V, 200W PTC heaters and run them from the 12V system. The only problem with that is you have to control the stuff manually and if you manage to forget those on, they will deplete your battery blazing fast, or even worse, catch on fire (although unlikely). So I bought the OVMS module, added the missing metrics for set point temperature, heating and vent status and wrote a heating assist plugin. In turn, this allows the heater to be controlled automatically by reading the OEM Climate control metrics from CAN bus with the help from OVMS module. And last, but not the least I did not like those heaters dangling around above the dash so I took away the broken high voltage PTC heater and put in two 12V 200W PTC elements in it's place (3 would fit, but I was concerned about the load for the DC-DC converter being too high). I tried to sum all this up in the video, so here it is.

https://www.youtube.com/watch?v=gqqgfjfIgLk

All in all you can build yourself a 10 times cheaper heater for less than 40 EUR. And if you want the comfort of automatic control add 100 EUR for the OVMS (which adds a lot of cool features by itself).
If you have any questions please leave a comment below the video as I don't visit this forum so often.

Finally if you are interested in having the same setup, here are the main things you will need: If you want to enable automatic heater control as well, you will have to: NOTE: For heating status to work, the Climate control system must be turned ON before switching off the car.

Daklein
Posts: 79
Joined: Fri Sep 06, 2019 7:58 pm
Delivery Date: 02 Sep 2019
Location: Hartland, MI

Re: has your Leaf's PTC heater failed? reply here

Mon Jan 20, 2020 4:37 pm

Awesome job younio! That's a great idea to control with OVMS! I had the same concerns with adding control of 12v heaters.

I would pull the hv PTC connector at the battery under the car. Remove the main terminals and the wire from it, fill the plug with good epoxy, and plug it back into the battery. Leave the hv interlock loop wires in the plug.
2014 Leaf S Plus :o (12/2019 62kWh swap!)

Bigbobfan
Posts: 1
Joined: Tue Mar 10, 2020 12:52 am
Delivery Date: 10 Oct 2018
Leaf Number: 006586

Re: has your Leaf's PTC heater failed? reply here

Tue May 19, 2020 7:50 am

I am in the UK and have the PTC heater failure Quote at £2,800. / $3,500 !!

It's summer and I asked for them to disconnected it but the garage said they are advised NOT to do so MY NISSAN UK.

I WANT A CAR I CAN DRIVE BUT WILL FOREGO A HEATER WHILE WE EXPLORE THE OPTIONS

GARETH GHAMER1@ME.COM

Oilpan4
Posts: 1597
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: has your Leaf's PTC heater failed? reply here

Tue May 19, 2020 3:21 pm

The final solution to the PTC heater is install a diesel fired coolant heater.
It's cheaper than a Nissan replacement and it doesn't kill your range.

User avatar
jlv
Moderator
Posts: 1413
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: has your Leaf's PTC heater failed? reply here

Wed May 20, 2020 7:51 am

To me it seems completely wrong to add a fossil-fuel powered heater to my fossil-fuel-free BEV.
LEAF '13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18) 34K mi, AHr 58, SOH 87%
Tesla S 75D (3/17)
Tesla X 100D (12/18)
97K 100% BEV miles since '14
ICE free since '18

coleafrado
Posts: 290
Joined: Fri Oct 11, 2019 11:58 pm

Re: has your Leaf's PTC heater failed? reply here

Wed May 20, 2020 4:14 pm

jlv wrote:
Wed May 20, 2020 7:51 am
To me it seems completely wrong to add a fossil-fuel powered heater to my fossil-fuel-free BEV.
Most of these heaters will run on almost any kind of oil - a year's worth of household food waste oil, for example, would likely run a car's heater for several winter months. If your vehicle is starved for range and heat could be the difference between keeping it and taking a taxi (or, gasp, buying an ICE) it might make sense.

GordStewart
Posts: 4
Joined: Sun Apr 03, 2016 6:25 pm
Delivery Date: 26 Mar 2016
Leaf Number: 304926

Re: has your Leaf's PTC heater failed? reply here

Thu Aug 27, 2020 4:01 pm

My 2018 leaf PTC heater doesn't draw any current below -20 C. I'm 350km from the nearest leaf dealer. I recently had it in for a firmware update and had them look at the heater. Their response was come back while it's happening. There's no way I can travel that far without heat. I don't think I'm going to be able to resolve this before the warranty expires

LeftieBiker
Moderator
Posts: 15276
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: has your Leaf's PTC heater failed? reply here

Thu Aug 27, 2020 6:50 pm

If you get the complaint documented (in writing) by the dealership or by another dealership, then it remains covered under warranty if they stall you.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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