ESIE13-02A
Error Codes: Hydro-box
97
Part 4 Troubleshooting
4
3
4
5
4
3.4
7H
Hydro-box: Flow Error
User interface
display
7H
Method of
malfunction
detection
The malfunction is detected by the flow sensor.
Malfunction
decision conditions
The error is generated in case the water flow is too low or no water flow at all for 15 seconds.
Supposed causes
Closed shut off valve
Air in the system
Clogged water filter
Insufficient water pressure
Too high external static pressure (pump speed setting)
Malfunction of hydro-box pump
Hydro-box pump fuse open [FU2]
During defrost
Malfunction of the backup heater [Q1L]
Backup heater fuse [F1B]
In case of EKSWW(U) / EKHWS(U) / EKHWE
Malfunction of the 3-way valve
In case of the EKSWWU / EKHWSU
Malfunction of the tank thermostat [Q1T, Q3L]
Malfunction of 2-way valve
Malfunction of flow sensor (damaged membrane)
7H-01 waterflow problem
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...