Chip blew up in Thermostat E base

[iamlevis]

The heat stopped clicking on in my Thermostat E.  After various troubleshootings, I opened up the wiring base and see that a chip seems to have exploded (see image).  As a test, I hooked up my R-wire to Y (i.e., I hooked my heat up to the thermostat's A/C terminal).  The Y terminal does work, so that confirms to me that this blown up chip is the problem with the heat.  Is the base a warranty-replaceable part?

[JillG]

Hi @iamlevis 

I sent your post with photo over to our support team from Nest.

They should respond here.

Jill

[zoeuvre]

Hi iamlevis, 
 

I’m sorry to hear about the situation and for the delay in response. We’d like to take a look at this for you. Could you please fill out this form with the needed information?
 

Best, 

Zoe 

[zoeuvre]

Hi there, 

We've received your form — thanks for filling that out. I'll consider this post as complete and will lock the thread in 24 hours. Please keep an eye on your email as someone from our team will reach out to you to assist you further.
 

Cheers,

Zoe