Error Codes: System Malfunctions
ESIE13-02A
Part 4 Troubleshooting
146
3
1
4
5
5.5
UF
Malfunction of Transmission between Hydro-box and Outdoor Unit or Gas
Shortage
Remote controller
display
UF
Method of
malfunction
detection
Check the transmission between the indoor and outdoor units with a microcomputer when the power
turned ON.
Detect by checking the following temperature differences during compressor operation.
A: Difference in temperature detected by the indoor liquid thermistor (R3T) and the indoor suction
air thermistor (R1T)
B: Difference in evaporation temperature (Te) (or condensation temperature (Tc) during heating
operation) detected by the indoor heat exchanger thermistor (R2T) and the compressor sensor
Malfunction
decision conditions
When the inter-unit wiring between the indoor and outdoor units is incorrect
When the following conditions continue for 20 minutes during compressor operation
A: R2T R1T < 4ºC, and
B: R2T Te (or Tc during heating operation) > 14ºC (24ºC during heating operation)
Supposed causes
Faulty inter-unit wiring between the indoor and outdoor units
Refrigerant shortage (out of gas)
Clogged refrigerant piping system
Summary of Contents for EHYHBH05AAV3
Page 16: ...Introduction ESIE13 02A 16 3 1 4 5...
Page 29: ...ESIE13 02A Functionality 29 Part 1 System Outline 3 1 4 5...
Page 30: ...Functionality ESIE13 02A Part 1 System Outline 30 3 1 1 4 5...
Page 35: ...ESIE13 02A Wiring Diagrams 35 Part 1 System Outline 3 1 4 5...
Page 36: ...Wiring Diagrams ESIE13 02A Part 1 System Outline 36 3 1 1 4 5...
Page 38: ...Wiring Diagrams ESIE13 02A Part 1 System Outline 38 3 1 1 4 5 3 3 Cable Dimensions...
Page 39: ...ESIE13 02A Wiring Diagrams 39 Part 1 System Outline 3 1 4 5...
Page 50: ...Outdoor Unit ESIE13 02A Part 2 Specifications 50 3 1 2 5...
Page 51: ...ESIE13 02A 51 Part 3 Commissioning 4 3 4 5 3 Part 3 Commissioning See Note on page 6...
Page 52: ...ESIE13 02A Part 3 Commissioning 52 3 1 3 5...
Page 98: ...Error Codes Hydro box ESIE13 02A Part 4 Troubleshooting 98 3 1 4 5 Troubleshooting...
Page 115: ...ESIE13 02A Error Codes Outdoor Units 115 Part 4 Troubleshooting 4 3 4 5 4 Troubleshooting...
Page 170: ...Maintenance Schedule ESIE13 02A Part 6 Maintenance 170 3 1 6...