STIEBEL ELTRON OTE 3 Bedienungsanleitung Seite 38

OPERATION
Messages
7.2 ERROR
If the heat pump is switched off by a safety device or function,
the message ERROR is displayed. The heat pump switches to
"Reduced emergency mode". The heat pump operates at a re-
duced temperature (heating and DHW). The additional heat
generator (electric emergency/auxiliary heater, boiler) is acti-
vated where available.
Set temperatures Description
Heating Reduced by 7 °C
Domestic hot water Reduced to 35 °C
Notice
When the fault has been remedied and the safety de-
vice has enabled the heat pump again, the heat pump
starts automatically.
The following actions are possible to suppress the
fault:
- Automatic acknowledgement
- Manual acknowledgement
Manual acknowledgement will allow the heat pump
to restart only if the fault is no longer present on the
safety device.
f Call your qualified contractor.
f On the start screen, press the ESC button.
f Press the selection button, to acknowledge the fault.
f Return to the start screen by pressing the ESC button.
Code No. Log- Designation
file
115 Er 01: DHW sensor faulty
116 Er 10: Outside sensor faulty
117 Er 14: Mixer sensor faulty
124 Er 20: TWR sensor faulty
120 Er 22: Shutdown sensor TWR/TPM
faulty
136 Er 23: TPV sensor faulty
118 Er 24: Buffer sensor faulty
114 Er 29: TWV sensor faulty
11 11 Er 30: Phase monitoring
134 Er 32: THg sensor faulty
138 Er 33: High pressure sensor faulty
137 Er 34: Low pressure sensor faulty
5 5 Er 36: High pressure
18 18 Er 37: Low pressure
16 16 Er 38: Hot gas
10 10 Er 39: Motor protection, compressor
8 8 Er 42: Frost protection, heat consump-
tion
Er 46: TSg sensor faulty
9 9 Er 47: Defrost fault
129 129 Er 48: TQE sensor/evaporator 1 faulty
130 130 Er 49: TQA sensor/evaporator 2 faulty
12 12 Er 50: Expansion valve
1 1 Er 56: Flow rate, heat source
2 2 Er 57: Frost protection, heat source
3 3 Er 58: Motor protection, heat source
143 143 Er 59: Sensor break TWV + TWR
144 144 Er 60: Sensor break TQA + TQE
38 |
7.3 LOCKOUT
In the event of a "LOCK" fault, the heat pump switches to "re-
duced emergency mode". The heat pump is shut down.
If an additional heat generator (electric emergency/auxilia-
ry heater, boiler) is available, this can be activated. Once the
lockout function is no longer active, an automatic restart is
possible.
The "Emergency mode" operating modes can lead to higher
heating costs as heating is then carried out solely by the addi-
tional heat generator (if installed).
f Call your qualified contractor.
f On the start screen, press the ESC button.
f Press the selection button.
f Set the heat pump to Emergency mode by turning the
selection button.
f Save the settings by pressing the selection button.
f Return to the start screen by pressing the ESC button.
Name
1: Reduced emergency mode
2: Emergency mode normal
7.4 Fault list
Remedy
replace the sensor
replace the sensor
replace the sensor
replace the sensor
replace the sensor
replace the sensor
replace the sensor
replace the sensor
Check the power supply
replace the sensor
Check sensors
Check sensors
Poor heat distribution, circulation pump faulty, valve closed or air in the system, check hydraulics
Insufficient source energy, low refrigerant, expansion valve, check refrigerant circuit, contact the
service department
Expansion valve, low refrigerant, set value too high, check refrigerant circuit, contact the service
department
Motor overload relay, phase fault/overload, source temperature too high, check refrigerant circuit
compressor, contact the service department
Poor heat distribution, circulation pump faulty, valve closed/air in the system, check buffer charg-
ing pump or hydraulics
replace the sensor
Too little defrost energy, evaporator/sensors, check refrigerant circuit, contact the service depart-
ment
replace the sensor
replace the sensor
Check function of expansion valve, contact the service department
Insufficient source energy, source pump/filter, flow rate at heat source too low
Insufficient source energy, source temperature too low: Check heat source, check source pump/
filter, clean water filter, groundwater pump faulty
Check motor protection, check cabling to motor, motor overload relay, phase fault/overload, ther-
mocontact
Check sensors
Check sensors
Description
The set value for heating is reduced
by 7 °C, the set value for DHW is re-
duced to 35 °C.
The set values are not reduced.
OTE