124
CTC EcoZenith i360
Alarm messages
Description
[E049] Stop, high evap. exp.
valve
This message appears when the expansion valve’s evaporation temperature is high.
Press reset and check whether the alarm recurs. If the fault recurs, contact your
installer.
[E050] Stop, low overheat. exp.
valve
This message appears when the expansion valve’s overheat temperature is low.
Press reset and check whether the alarm recurs. If the fault recurs, contact your
installer.
[E052] Phase 1 missing
[E053] Phase 2 missing
[E054] Phase 3 missing
This message appears in the event of a phase failure.
[E055] Incorrect phase
sequence
The product’s compressor motor must rotate in the right direction. The product
checks that the phases are connected correctly; otherwise, an alarm is triggered.
This will require changing two of the phases into the product. The power supply to
the system must be shut off when rectifying this fault. This fault generally only occurs
during installation.
[Exxx] '
sensor
'
An alarm message is displayed if an error occurs with a sensor that is not connected
or has short-circuited and if the value is outside the sensor’s range. If this sensor is
important to the system’s operation, the compressor stops. This requires the alarm
to be reset manually after the fault has been rectified. The alarm is reset automatically
after correction for the following sensors:
[E140] Sensor EHS-tank (B47), [E031] Sensor prim flow 1 (B18), [E032] Sensor prim
flow 2 (B2), [E074] Outdoor sensor (B15), [E074] Room sensor 1 (B11), [E075] Room
sensor 2 (B12), [E005] Brine out sensor, [E003] Brine in sensor, [E028] HP in sensor,
[E029] HP out sensor, [E037] Hot gas sensor, [E080] Suction gas sensor, [E036]
High pressure sensor, [E043] Low pressure sensor.
[E057] Motor protect high curr.
High current into the compressor has been detected. Press reset and check whether
the alarm recurs. If the fault recurs, contact your installer.
[E058] Motor protect low curr.
Low current into the compressor has been detected. Press reset and check whether
the alarm recurs. If the fault recurs, contact your installer.
[E061] Max thermostat
This alarm message appears if the product becomes too hot.
During installation, make sure the max. thermostat (F10) has not been triggered as
there is a chance of this occurring if the boiler has been stored in extremely cold
temperatures, Reset it by pressing in the button on the electrical switchboard behind
the front panel.
[E135] Risk of freezing
Alarm indicating that the temperature of the outgoing water from the heat pump (HP
out) is too low for defrosting. The water volume in the system may be too low. The
flow may be too low. (Applies to EcoAir)
[E152] 4-way valve
This alarm message is displayed if a fault occurs with EcoAir's 4-way valve or if
the connection pipes to the EcoAir are incorrectly connected. Press reset and
check whether the alarm recurs. If the alarm recurs, check that the charge pump is
pumping water to the heat pump's lower connection. If the fault recurs, contact your
installer.
[E087] Driver
[E088] Driver: 1 -
[E109] Driver: 29
Driver fault.
[E117] Driver: Offline
Press reset and check whether the alarm recurs.
If the fault recurs, contact your installer and tell them the error code number where
applicable.
Communication error. The electrical connection box and driver of the heat pump are
not communicating.
[E163] Defrost max time
duration
The heat pump has not had time to complete defrosting within the maximum time.
Make sure that any ice on the evaporator has disappeared.
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