Dantherm HPP Serie Manual De Instalación página 24

EN
When an error occurs or a protection mode is set automatically, the user interface will display an error code as shown below.
Problem
Code
Coil temperature sensor failure
P1
Compressor exhaust gas temperature
P2
failure
Inlet water temperature sensor failure
P3
Outlet water temperature sensor failure
P4
Protection for over high inlet/outlet
P6
water temperature difference
Ambient temperature sensor failure
P7
Protection for over high inlet/outlet
P8
water temperature difference in cooling
mode
Low pressure protection
P9
PC First step antifreeze protection in Winter
Second step antifreeze protection in
Winter
PL Water flow failure
E3 Over high compressor exhaust gas
temperature protection
E4 High pressure protection
E8 Communication failure
24
Error codes
Cause
1) Sensor open circuit
2) Sensor short circuit
3) Main PCB damaged
1) Water flow low
2) Main PCB damaged
1) Inadequate water flow rate
2) Inadequate inlet water
temperature
3) Main PCB damaged
1) Poor connection of pressure switch 2) Reconnect the switch
2) Main PCB damaged
These functions occur when the
ambient temperature is too low and
the HPP is in standby mode
1) Inadequate water flow
2) Water flow switch damaged
3) Main PCB damaged
4) Water inlet/outlet wrongly
connected
1) Inadequate flow rate
2) Water temperature setting too
high
3) Poor connection of pressure
switch
4) Main PCB damaged
1) Inadequate flow rate
2) Water temperature setting too high
3) Poor connection of pressure switch 3) Reconnect the switch
4) Main PCB damaged
Failure of user interface
Remedy
1) Check sensor connection
2) Replace the sensor
3) Replace the main PCB
1) Check that the water filter and water
circuit are not blocked
2) Replace the main PCB
1) Check that the water filter and water
circuit are not blocked
2) Adjust the settingt emperature to normal
working range
3) Replace the main PCB
2) Replace the main PCB
No action needed
1) Check the water pump
2) Replace water flow switch
3) Replace the main PCB
Check water inlet/outlet connections
1) Check the water pump and water control
valve
2) Lower the water temperature setting
3) Reconnect the switch
4) Replace the main PCB
1) Check the water pump and water control
valve
2) Lower the water temperature setting
4) Replace the main PCB
Check wiring connection between the PCB
and the user interface