CTC Union GSi 16, Installation And Maintenance Manual

Page: 117 / 120

117 CTC GSi 16
13.2 Alarm messages
If a fault occurs with e.g. a sensor, an alarm is triggered. A message appears on the display with
information about the fault.
You reset the alarm by pressing the Reset Alarm button on the display. If several alarms are triggered,
they are displayed one after the other. A persisting fault must first be rectified before it can be reset.
Some alarms are reset automatically if the fault ceases.
Alarm: [E055] Incorrect phase sequence
Reset alarm
Alarm messages Description
[E010] Compressor type ? This message appears if no information about the compressor type is
available.
[E013] EVO off This message appears when there is a fault with the expansion valve control.
[E024] Fuse blown This message appears when the fuse (F1, F2) has been triggered.
[E026] Heat pump This message appears if the heat pump is in alarm mode.
[E027] Communication error
HP
[E063] Comm. err. relay board
[E063] Comm. err. motor
protection
[E086] Comm. err. expansion
card
This message appears if the display card (A1) is unable to communicate with
the HP control card (A5).
This message appears if the display card (A1) is unable to communicate with
the relay board (A2).
This message appears if the HP control card (A5) is unable to communicate
with the motor protection (A4).
This message appears if the display card (A1) is unable to communicate with
CTC Solar Control/Expansion Card (A3).
[E035] High pressure switch The refrigerant’s high pressure switch has been triggered. Press reset and
check whether the alarm recurs. If the fault recurs, contact your installer.
[E040] Low brine flow Low brine flow is often caused by air in the collector system, especially
immediately following installation. Collectors which are too long can also be a
cause. Press reset and check whether the alarm recurs. Also check the brine
filter that has been installed.
If the fault recurs, contact your installer.
[E041] Low brine temp. Incoming brine temperatures from bore hole/ground loop are too low. Press
reset and check whether the alarm recurs. If the fault recurs, contact your
installer to check the positioning of the cold side.
[E044] Stop, high comp. temp. This message appears when the compressor temperature is high.
Press reset and check whether the alarm recurs. If the fault recurs, contact
your installer.
[E045] Stop, low evaporation This message appears when the evaporation temperature is low.
Press reset and check whether the alarm recurs. If the fault recurs, contact
your installer.
[E046] Stop, high evaporation This message appears when the evaporation temperature is high.
Press reset and check whether the alarm recurs. If the fault recurs, contact
your installer.
[E047] Stop, low suct. gas exp.
valve
This message appears when the suction gas temperature is low.
Press reset and check whether the alarm recurs. If the fault recurs, contact
your installer.