Daikin E413 (LPT)~E415 (HPT)

Alarm
Logic		 E413 Low pressure transducer (LPT) is not functioning correctly
E415 High pressure transducer (HPT) is not functioning correctly
Possible
Causes		 Device malfunction
  • Sensor failure / Controller failure / Broken wire / Connector disconnected / short circuit
  • Pressure transducer faulty
  • Controller faulty
Trouble
Shooting		 1. Check connector CN44 and make sure it is properly installed 1. Proceed to the next step if the alarm still occurs

1-1. Connect gauge manifold, compare the value of pressure gauge and HPT
1-2. Connect gauge manifold, compare the value of pressure gauge and LPT

LPT or HPT value shows by monitoring data or display mode sensor. (refer to page 2-12)		 1-1. Replace HPT if the difference is greater than 100kPa

1-2. Replace LPT if the difference is greater than 30kPa

2. Remove connector CN44 on CPU board and check if
there is 5VDC from the controller
LPT : CN44 No.1-2-3 (Black-White-Red)
HPT : CN44 No.4-5-6 (Black-White-Red)
Black-Red : 5VDC

CPU board CN44

 2. If the input to transducer is 5VDC, check the transducer If input is less than 5V, check controller and wiring
Controller
Action		 E413 Backup operation
E415 Backup operation
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