[old_bill]

I have a Huanyang 2.2 Kw inverter to be used with a CNC mill. Source voltage is 240 single phase.

On power up the display shows "ASr 1.0" flashing. And the power led is lit. No other button does anything except PRGM. I am able to select a numbered parameter but cannot read it or change it

or I do not know how manual is of no help

I need specific key sequence to read and set parameters

I would appreciate any ideas getting past this

[old_bill]

For no apparent reason it just started working. Looking at the other posts explained the rest. Thank you all.

[old_bill]

Looks like I Spoke Too Soon

Back to its old tricks. After 2 days of near perfect operation

It just sits there and flashes "asr 1.0" like it is trying to boot

Buttons do nothing parameters are set as directed. Nothing was changed

Any ideas welcome

[old_bill]

My final comment: From a woodworking board I learned those units can have bad solder connections. Their solution- HEAT IT UP- with a hair dryer and it will boot up. I did, and now it works. We were having a heat wave the past couple of days when it was working. Today is much cooler.