Johnson AURUM R32 M Serie Guide D'utilisation page 158

ERROR MALFUNCTION
CODE OR PROTECTION
Solar temp. sensor
(Tsolar) fault
Buffer tank low temp.
sensor (Tbt2) fault
Inlet water temp. sensor
(Tw_in) malfunction
Hydraulic module EEprom
failure
Communication fault between
main board PCB B and main
Control board of hydraulic
module
Refrigerant liquid temp.
sensor (T2) fault
Refrigerant gas temp.
sensor (T2B) fault
Room temp. sensor
(Ta) fault
Outlet water for zone 2 temp.
sensor (Tw2) fault
Outlet water temp.
sensor (Tw_out) fault
Three times "PP"
and Tw_out<7ºC
1. Check the resistance of the sensor.
2. The Tsolar sensor connector is loosen, reconnect it.
3. The Tsolar sensor connector is wet or there is water in,
remove the water, make the connector dry. Add waterproof
adhesive.
4. The Tsolar sensor failure,change a new sensor.
1.Check the resistance of the sensor.
2.The Tbt2 sensor connector is loosen,reconnect it.
3.The Tbt2 sensor connector is wet or there is water in, remove
the water ,make the connector dry.Add waterproof adhesive.
4.The Tbt2 sensor failure,change a new sensor."
1.Check the resistance of the sensor
2.The Tw_in sensor connector is loosen. Reconnect it.
3.The Tw_in sensor connector is wet or there is water in.
remove the water, make the connector dry. Add waterproof
adhesive
4.The Tw_in sensor failure, change a new sensor.
1. The EEprom parameter is error, rewrite the EEprom data.
2. EEprom chip part is broken, change a new EEprom chip
part.
3. Main control board of hydraulic module is broken, change a
new PCB.
1.Wire doesn't connect between main control board PCB B and
main control board of hydraulic module. connect the wire.
2.Communication wire sequence is not right. Reconnect the
wire in the right sequence.
3.Check whether there is a high magnetic field or high power
interfere, such as lifts, large power transformers, etc. To add a
barrier to protect the unit or to move the unit to the other place.
1.Check the resistance of the sensor
2.The T2 sensor connector is loosen. Reconnect it.
3.The T2 sensor connector is wet or there is water in. Remove
the water, make the connector dry. Add waterproof adhesive
4.The T2 sensor failure, change a new sensor.
1.Check the resistance of the sensor.
2.The T2B sensor connector is loosen. Reconnect it.
3.The T2B sensor connector is wet or there is water in. remove
the water, make the connector dry. Add waterproof adhesive
4. The T2B sensor failure, change a new sensor.
1.Check the resistance of the sensor.
2. The Ta senor is in the interface.
3. The Ta sensor failure, change a new sensor or change a
new interface, or reset the Ta, connect a new Ta from the
hydraulic module PCB.
1.Check the resistance of the sensor.
2. The Tw2 sensor connector is loosen. Reconnect it.
3.The Tw2 sensor connector is wet or there is water in.
Remove the water, make the connector dry. add waterproof
adhesive.
4. The Tw2 sensor failure, change a new sensor.
1. The TW_out sensor connector is loosen. Reconnect it.
2. The TW_out sensor connector is wet or there is water in.
remove the water, make the connector dry. Add waterproof
adhesive.
3. The TW_out sensor failure, change a new sensor.
protection
The same to "PP".
69
FAILURE CAUSE
AND CORRECTIVE ACTION
V.1