Daikin FTXN-LV - Error Code E4: Low Pressure Protection

TS13-01 Troubleshooting manual 30
E4
Description
Low Pressure protection
Supposed Cause
1.) faulty high pressure switch , connector or wire harness
2.) Indoor filter, outdoor coil dirty.
3.) Outdoor fan not running, unit overcharge, stop valve is closed.
Troubleshooting