Midas Mida.Black 8 - Failure Code Table for Plug-In Type PCB

5.3 Failure code table for plug-in type PCB
20
Protection/Failure
Wire
controller
E3/EE3
No display
Check Solution
P1/PP1
1. Check the connection of inlet water
sensor.
.2. Check if the sensor is broken
1. Reconnect the sensor.
2. Replace the sensor.
P2/PP2
1. Check the connection of outlet water
sensor.
.2. Check if thesensor isbroken
1. Reconnect the sensor.
2. Replace the sensor.
P3/PP3
1. Check the connection of coil 1
temperature sensor.
.2. Checkif the sensoris broken
1. Reconnect the sensor.
2. Replace the sensor.
P10/PP10
1. Check the connection of coil 2
temperature sensor
2. Checkif the sensoris broken.
1. Reconnect the sensor.
2. Replace the sensor.
P5/PP5
1. Check the connection of ambient
temperature sensor.
.2. Checkif the sensoris broken
1. Reconnect the sensor.
2. Replace thesensor.
E12/EE12
1. Check if wiring connection of flow switch
is in correct position.
2. Check if enough water flow.
3. Check if flow switch is broken.
4. Check if water pump is working.
1. Reconnect the wiring.
2. Increase enough water flow.
3. Replace flow switch.
4. Repair or replace water pump.
E4/EE4
1. Check if high pressure switch is broken.
'2. Checkifthere sjaminwater circuitor
waterflow not enough.
3. Check ifrefrigerant circuit jam.
E14/EE14
1. Check if there is enough water flow volume.
2. Check if inlet/outlet water temp sensor is working..
1. Increase water flow.
2. Replace related sensor.
E8/EE8
Check the connection
Reconnect the connection wire.
P7/PP7
No action required
Water flow switch failure
Defrosting
Inlet water temp. sensor failure
Outlet water temp. sensor failure
Coil 1 temp. sensor failure
Coil 2 temp. sensor failure
Ambient temp. sensor failure
Anti-freeze protection for cooling
High pressure protection Ⅰ
Failure of excessive temp. difference
between water inlet & outlet
Communication failure
Winter anti-freeze protection Ⅰ
Winter anti-freeze protection Ⅱ
P7/PP7
No action required
Order of phases incorrect
Reconnect the phases in right order
Order of phases incorrect
(only for 3 phase model)
E1/EE1
1. Check if high or low pressure switch is broken.
2.Checkiflackofrefrigerant.
3. Ambient temp. and water inlet temp. is
too low.
E6/EE6
Low pressure protection Ⅱ
High pressure protection Ⅱ
E5/EE5
1. Replace high pressure switch.
2. Remove cause of blockage or
increase water flow.
3. Send heat pump to dealer for
detailed check.
Low pressure protection Ⅰ
E2/EE2
1. Replace low pressure switch.
2. Fill up with enough refrigerant.
3. Remove cause of blockage or
decrease water flow.
4. Send heat pump to dealer for
detailed check.
1. Check ifthere isany jam in the watercircuit.
2. Checkif the water flowvolume is enough.
3. Check if thewaterpump isworking.
E14/EE14
1. Remove the jam.
2. Increase the water flow volume.
3. Repairor replace the water pump.
Protection for excessive temp. difference
between water inlet & outlet