HVAC: Low Current Pump Failure

[ellidz]

Yesterday I got a "HVAC: Low Current Pump Failure" message on the VDS.
OVMS gave me 11 of these (Vehicle Alert #1425) throughout the day.

Today no errors (it did a top off charge last night, and nothing since then).

Is this error indicative of an issue with the AC / Heating in the car, or can it also impact the battery cooling (right now the battery is at 80.6 F, so no issues there)? How much should I worry about it, and how quickly do I need to get it taken care of?

Thanks!

 

[X.l.r.8]

Did you check the coolant level in the trunk?

 

[X.l.r.8]

Replacing ESS coolant pump in a Roadster 1.5 (Bosch pump# 0 392 022 002)
not sure what car you have so making an assumption it’s a 1.5

 

[ellidz]

Thanks, everyone - some good thoughts here. I'll double check the coolant level tonight - I checked a couple weeks back and it was fine.

X.l.r.8 - It's a 1.5, so that seems like the right part, though I don't really have a location wherein I can work on it at the moment.

The error message hasn't reoccurred, and I didn't get the "service required" message that jeremyz had. I'm hoping this can safely wait a little bit until it is more convenient for me to be able to address the issue...

 

[ellidz]

It looks like the coolant is a bit low. I'll try adding more and see if that helps. How long do people normally find the coolant lasts before needing topping up?

I know I need the special eco-friendly coolant - anyone have a favorite and/or an online retailer for it?

Thanks again! Much appreciated.

 

[ellidz]

Is this the right coolant to use?

https://www.amazon.com/Star-Brite-S...NPI06C/ref=sr_1_4?crid=25XZ5YUPZGMUL&dchild=1

Thanks again for your help!

 

[sujitdmello]

Take a look at this thread that talks about the coolant to use. Roadster Battery Coolant

 

[ellidz]

Thanks - I had been having difficulty finding anywhere selling the coolants that had been recommended in there, but I believe I found one.

I really appreciate all the help!

-Larry

 

[sujitdmello]

Co-incidentally I've started getting the 1425 error message myself (I have the 2008 Roadster).

@ellidz did your issue go away or did you refill coolant?

Question - I've seen 1425 and 1426 both being referred to the same coolant system issue so I'm a bit confused. From what I've read,1425 = Low Current Pump Failure and 1426 = High Current Pump Failure. Am I correct in assuming they are not the same? Can someone please clarify which pump is related to the 1425 error? Is it the one in front of the right rear wheel well?

Thanks

Sujit

 

[ellidz]

Co-incidentally I've started getting the 1425 error message myself (I have the 2008 Roadster).

@ellidz did your issue go away or did you refill coolant?

Question - I've seen 1425 and 1426 both being referred to the same coolant system issue so I'm a bit confused. From what I've read,1425 = Low Current Pump Failure and 1426 = High Current Pump Failure. Am I correct in assuming they are not the same? Can someone please clarify which pump is related to the 1425 error? Is it the one in front of the right rear wheel well?

Thanks

Sujit

After that one day where I got a plethora of them, it didn't reoccur. It took me about a week to top up the coolant, so I'm not sure if the coolant addressed the issue or if it cleared on its own.

-Larry

 

[sujitdmello]

After that one day where I got a plethora of them, it didn't reoccur. It took me about a week to top up the coolant, so I'm not sure if the coolant addressed the issue or if it cleared on its own.

-Larry

Great thanks. If anyone has any clarification regarding the 1425 and 1426 codes and which pumps they map to, that would be appreciated.

 

[ellidz]

For posterity's sake: my Low Current Pump Failure messages came back a little over a month later. It also refused to accept a charge (240v).

Took it into the shop and it turns out the pump needs replacing.

The pump apparently cools both the AC and the battery. I was able to drive it the ~20 miles or so to the shop without any issues - I watched the batter, PEM, and motor temperatures and none of them went particularly high.

-Larry

 

[jason.tv]

keep up posted on outcome.