Karma uses a PTC heater or thermal electric elements to heat the coolant in stealth mode. If you click the wavy lines off on the touch panel and the color goes to all blue then it turns the heater off. It should warm the coolant pretty quickly when functioning. If you uncheck or turn off ac it goes to full orange color. While true running the ICE helps warm it up, the only reason to do that is to conserve range as the PTC heater does pull alot of amperage and runs off of the HV battery thus reducing the range of the car in the winter. Id say she may need to be looked at if it isnt working at all you shouldn't need the ICE for heat.
Fan heater inside
Some topics have touched on this a bit.
A/C Works fine.
Electric Heated seats work fine.
I cannot get the fans to product hot air inside the cabin. I click the wavy heat button and everything and set it to max temperature and max fans and made sure the air con button was off.
Someone suggested it will work best in sport mode since the engine will heat up the coolant and the fan will blast around the coolant lines heating the cockpit. I don't usually drive in sport mode so I can try that tomorrow. Even a gas powered car will have the issue where the engine needs to get hot before you get heat into the cabin. Perhaps I need to run it in sport mode for awhile to loosen up the valves and such?
A/C Works fine.
Electric Heated seats work fine.
I cannot get the fans to product hot air inside the cabin. I click the wavy heat button and everything and set it to max temperature and max fans and made sure the air con button was off.
Someone suggested it will work best in sport mode since the engine will heat up the coolant and the fan will blast around the coolant lines heating the cockpit. I don't usually drive in sport mode so I can try that tomorrow. Even a gas powered car will have the issue where the engine needs to get hot before you get heat into the cabin. Perhaps I need to run it in sport mode for awhile to loosen up the valves and such?
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My heater never worked in stealth mode either. Lormax is working on my Karma, and it turns out that the heater had some sort of internal leak that shorted it out. It also registered as a leakage current from the HV battery, that caused the whole car to shut down!
He replaced it, so hopefully it will work now. He is rebuilding my RDM next, so he still has it.
He replaced it, so hopefully it will work now. He is rebuilding my RDM next, so he still has it.
What's wrong with your RDM that's needs rebuilding ?My heater never worked in stealth mode either. Lormax is working on my Karma, and it turns out that the heater had some sort of internal leak that shorted it out. It also registered as a leakage current from the HV battery, that caused the whole car to shut down!
He replaced it, so hopefully it will work now. He is rebuilding my RDM next, so he still has it.
1 - 4 of 4 Posts
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