Daikin E201

Alarm
Logic		 E201 Pump down is not completed within 120 seconds
Possible
Causes
  • The solenoid valves can not close (debris)
Liquid solenoid valve (LSV) / Hot gas solenoid valve (HSV) / Discharge gas bypass
solenoid valve (BSV)
  • Compressor failure
  • Low pressure transducer (LPT)
Trouble
Shooting		 Check EV and LSV (refer to page 5-4) If EV or LSV is functioning correctly, check below items Connect manifold gauge, start manual defrost operation and check whether the LPT at pumpdown completion is lower than –40kPa within 300 seconds and verify with the low-pressure gauge Check whether the LPT at pump-down completion is lower than –40kPa and verify with the low pressure gauge 
*If LPT reading reaches to desired pressure, it is normal. Monitor unit operation
*If LPT reading does not reach to desired pressure, suction capacity of the compressor may be insufficient
Controller
Action		 E201 Alarm display only
Subscribe to: Posts ( Atom )