arnis
Posts: 514
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: 2011 Heater Core $1240 - Part B714300Q0A PTC - Alternatives?

Fri Jan 06, 2017 2:40 pm

Buy a part from EBay or scrapyard.
Find somebody who will work at reasonable hourly fee. Be it 10 or 30$ per hour.
Half day job if you know what you do.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

powersurge
Posts: 432
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: 2011 Heater Core $1240 - Part B714300Q0A PTC - Alternatives?

Tue Jan 10, 2017 10:03 am

+1 Vincam......

Dooglas
Posts: 31
Joined: Thu Apr 03, 2014 10:08 pm
Delivery Date: 04 Jan 2017
Leaf Number: 314779

Re: 2011 Heater Core $1240 - Part B714300Q0A PTC - Alternatives?

Sat Jan 14, 2017 12:06 pm

arnis wrote:Find somebody who will work at reasonable hourly fee. Be it 10 or 30$ per hour.
Something of a shortage in the US of auto mechanics who know what they are doing AND will work for $10/hour. Usually, you can find one or the other. ;)
2013 Leaf SV - 21,871 miles, 2016 Leaf S30

arnis
Posts: 514
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: 2011 Heater Core $1240 - Part B714300Q0A PTC - Alternatives?

Sun Jan 15, 2017 2:52 am

Young mechanics who have their own shop. They do not need to know what the do. The need
repair manual which is available on the internet. Instructions for assembly/disassembly.
Nothing wrong with 20 per hour. It is still a fraction of the price.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

User avatar
FalconFour
Gold Member
Posts: 288
Joined: Wed Sep 19, 2012 12:07 pm
Delivery Date: 14 Sep 2012
Leaf Number: 008681
Location: San Jose, CA
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Re: 2011 Heater Core $1240 - Part B714300Q0A PTC - Alternatives?

Wed Jan 18, 2017 2:11 am

I figure I'd throw my hat in here as well...

I remember the 2011 heater system. Hilariously complex, but efficient.

It consists of a completely separate coolant loop, but the "coolant" is rather used as "heatant" instead here. I think they just jimmied a standard Nissan HVAC system in there, one typically used for ICE engine cars.

In that coolant loop, there's:
- its own reservoir
- a heating element
- its own pump
- a heater core (goes to the vents) - and pretty much is immune to failure (it's just a dumb copper block!)
- a valve to regulate flow through the heater core
- a few sensors

Right now, the diagnosis is focused on the heating element (I assume - though the title says "heater core", "PTC" and the part number refers to the element). That may or may not be the right one to look at.

To know for sure, you should probably check that the coolant is actually flowing (pump; valve). It flows at all times the car is running, in my experience. So, you should be able to pop the cap off of either reservoir, and see coolant flowing in both. Don't worry, it's a closed system - popping the cap while the car is running won't leak anything out at you, and you should be able to observe turbulence in the liquid inside. No flow? Check your pump.

Next, check if either reservoir gets warm when you've got the heater running - kind of unlikely at this point. Turn car on, set to 90, foot, no A/C, fan on 2. It ought to get warm within 30 seconds to 1 minute.

Next, check the "energy monitor" screen and see if you have any AC/Heating power consumption on the screen. Yes? Then something is heating up (and the heating element is OK) - as that screen monitors actual load. But through those other tests, that ought to have been eliminated...

Then, you can take the diagnosis to eBay, pick up the right part, and quite possibly fix it yourself if you know how to Google the service manual for the 2011 Leaf. :mrgreen:
100% gas-free since September 2012
2011 LEAF SL - Sep 2012~Sep 2014 - 35,737 miles
2013 LEAF S+Charge - Jan 2014-present - 66K miles as of 1/12/17

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