Balboa CLIM8ZONE II User And Service Manual page 17

frequency conversion
module (alarm when
communication is
disconnected between
external board and drive
board)
E12 Exhaust too high protection
E15 Inlet water temp. Error
E16 Outer coil pipe temp.
Error
E18 Exhaust gas temp. Error
E20 Abnormal protection of
frequency conversion
module
E21 Ambient temp. Error
E23 Too low cooling outlet
water temp protection
E27
Outlet temperature fault
E29 Return gas temp. Error
E46 DC Fan Error
E20 fault will display the following error codes at the same time, the error codes will switch every 3 seconds. Among
them, error codes 1-128 are displayed in priority.
When error codes 1-128 don't appear, then error codes 257-384 can show.
board damaged
2. The connector of the
communication cable between
the main board and the driver
board is in poor contact or falls
off
3. The communication cable
is damaged
1. Less refrigerant or leakage
2. The system blocked
3. Compressor refrigerant oil
is insufficient
4. The resistance value of the
exhaust probe is offset, and the
inlet temperature probe is
dropped
The sensor plug is in poor contact
or off, or the sensor is damaged
The sensor plug is in poor contact
or off, or the sensor is damaged
The sensor plug is in poor contact
or off, or the sensor is damaged
IPM module internal fault,
check related problems according
to the attached table
The sensor plug is in poor contact
or off, or the sensor is damaged
Outlet water temp lower than 2℃
The sensor plug is in poor contact
or off, or the sensor is damaged
The sensor plug is in poor contact
or off, or the sensor is damaged
1.Dc fan failure
2.Plug is in poor contact or
off
2. Check the
communication cables
between the main board and
driver board
3. Replace the
communication cable
1. Refill the refrigerant
2. Replace the filter
3. Add refrigerant oil to
the compressor
4. Replace the exhaust
probe and reconnect the water
inlet temperature probe
Check and replace the water
inlet temperature sensor(T2
sensor)
Check and replace the coil
pipe temperature sensor(T3)
Check and replace the exhaust
gas temperature sensor(T1)
Check and replace the ambient
temperature sensor(T4)
Check whether the water flow
or water system is jammed or
not
Check and replace the water
outlet temperature sensor(T6)
Check and replace the suction
gas sensor(T5)
1. Replace the DC fan
2. Reconnect cables to the
DC fan
17