Nice hash - red lights

[jack catesby]

I have a query, I am quite confused and also dismayed.

When I switch my ant miner D3 machines on to nice hash, the machines almost immediately (after a few minutes) blink red lights..

When I switch them back to Dash, they have strong green lights day after day...

What trick am I missing here?

 

[sierraja]

My antminer D3 has fixed red light