Need some help from my roadster friends!
Have a 2011 roadster sport and bottom line the HVAC system is not cooling. So this is a big concern with the battery! I need to get this resolved ASAP as battery is sitting at 34-35 *C. The circ pump is working and running continuously. I went into the HVAC service mode and can confirm circ pump turns on and off, and both solenoids can be activated and deactivated.
Yesterday I was in the service screens and confirmed air out T of the hvac system was same T as ambient. The compressor spins up fine and shows it is running on the service screen. Freon pressures register around 2-3 bar when sitting idle and between 7-8 bar when the compressor spins up. Ambient here in Raleigh is running about 95*F.
I have searched and searched the forums but can’t seem to find details on what is normal and a strategy to troubleshoot this type issue. My best guess is I simply need to have the Freon charged. But I need to confirm what I am seeing is consistent with this being the problem.
Well the other issue is the Raleigh SC won’t support the car anymore. So not sure where to go to address any issues. I can’t evacuate or charge the hvac system myself.
To add insult to injury while exiting the service menu something happened and the VDS and VMS decided to hate each other and are no longer communicating (see other VMS thread I bumped today). This is a secondary issue I believe unrelated. Primary concern is to get the HVAC system working so I can charge the battery and keep it cool.
Right now I’ve reverted to using the CAN SR and my model3 mobile charger at 120V @12 amps in an attempt to minimize heat input into the ESS. I have battery at 102 ideal range but trying to get a little higher as I believe I’ll eventually need to pull the ESS disconnect to resolve the comms issue with the VDS and VMS as screen is devoid of any data (no battery range, can’t get into service menu, can’t do anything useful basically). Concern there is breaking the disconnect and then I’m unable to do anything until that is fixed (just thinking worse case here).
Luckily I have OVMS and am able to command charging from the app. What an invaluable add on …. Can’t imagine not having OVMS! Thank you @markwj !
Any and all help would be greatly appreciated!
Have a 2011 roadster sport and bottom line the HVAC system is not cooling. So this is a big concern with the battery! I need to get this resolved ASAP as battery is sitting at 34-35 *C. The circ pump is working and running continuously. I went into the HVAC service mode and can confirm circ pump turns on and off, and both solenoids can be activated and deactivated.
Yesterday I was in the service screens and confirmed air out T of the hvac system was same T as ambient. The compressor spins up fine and shows it is running on the service screen. Freon pressures register around 2-3 bar when sitting idle and between 7-8 bar when the compressor spins up. Ambient here in Raleigh is running about 95*F.
I have searched and searched the forums but can’t seem to find details on what is normal and a strategy to troubleshoot this type issue. My best guess is I simply need to have the Freon charged. But I need to confirm what I am seeing is consistent with this being the problem.
Well the other issue is the Raleigh SC won’t support the car anymore. So not sure where to go to address any issues. I can’t evacuate or charge the hvac system myself.
To add insult to injury while exiting the service menu something happened and the VDS and VMS decided to hate each other and are no longer communicating (see other VMS thread I bumped today). This is a secondary issue I believe unrelated. Primary concern is to get the HVAC system working so I can charge the battery and keep it cool.
Right now I’ve reverted to using the CAN SR and my model3 mobile charger at 120V @12 amps in an attempt to minimize heat input into the ESS. I have battery at 102 ideal range but trying to get a little higher as I believe I’ll eventually need to pull the ESS disconnect to resolve the comms issue with the VDS and VMS as screen is devoid of any data (no battery range, can’t get into service menu, can’t do anything useful basically). Concern there is breaking the disconnect and then I’m unable to do anything until that is fixed (just thinking worse case here).
Luckily I have OVMS and am able to command charging from the app. What an invaluable add on …. Can’t imagine not having OVMS! Thank you @markwj !
Any and all help would be greatly appreciated!