LG Tromm Gas Dryer won't Heat

[JLS]

I have an LG TROMM dryer which is 2 yrs. old and suddenly does not heat on any setting either.  Everything else about it works fine.  Local excellent repair man witih 30 yrs. experience told me the burner was only gettting 20 volts, instead of the 90 volts the LG technical support people told him it needed to ignite.  They informed us we needed to purchase a new board.  We did, and installed it.  And the problem is exactly the same...

Then, when we called back to LG, spent 30 minutes on hold one time and never got through to tech support.  Tried online chat, but terrible customer service rep could not get past the fact that the one year warranty ended and would  not put me though to a technical person.  

Has anyone experienced this failure to get voltage to the burner?  I have been without a dryer for 3 weeks and am going crazy!  Do you think the thermostate problem described by others could account for this?  Any insight will be greatly appreciated.  
Thank you.

[Al Capone]

Hi JLS,

Please be sure to read, Posting Basics - Starting a New Topic.

Note were it says towards the bottom.

Please do not ask your own question in a topic.
In other words, please don't hijack the topic and make it yours.
Start your own topic and reference the other topic related to your issue.

I have made your reply into a new topic.

What is the model number of your LG dryer?

Thanks for posting.

[RegUS_PatOff]

With a model number, we could link to the on-line Service Manual if you would need it.

There's (2) Coils on the Gas Valve.

Which Coil had the low voltage and did the Ignitor glow ?

Were the Hi-Limit Safety Thermostats tested ?

Also, the Gas Valve Coils are DC volts ...

There's also some other diagnostic info if voltage reading are less than 90v DC.