AOTG30LBTA4 issues.
Some heads weren’t cooling at all and some were flooding the coil. Had suspected either faulty ev body or gas charge. Reclaimed full charge so ended up replacing all 4 body’s to only have the same issue still.
After checking out wiring/piping we noticed that not all ev’s sounded the same when initializing. Valve A sounded normal and B, C, D sounded faint. All 4 evs tested out correctly so we ended up replacing the control pcb which fixed our issue in the end. Something to keep in mind when fault finding these system is to make sure all valves make the same sound when initializing. It could save you a lot of trouble.
As you can see the choke coil is burnt below.
A burnt coil compared to a good coil.
This is the INCORRECT WIRING
This is CORRECT WIRINING
