Hayward SUMHEAT HP5171DT3, Installation Instructions Manual

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41
6. APPENDIX (continued)
Problem
Error
codes
Description Solution
Water inlet sensor fault P01
The sensor is open or has short-circuited.
Check the blue AIN6 connector on
the board and measure the sensor's
resistance; if it is under 100 Ω or over
500 kΩ, replace it.
Water outlet sensor fault P02
Check the red AIN7 connector on
the board and measure the sensor's
resistance; if it is under 100 Ω or over
500 kΩ, replace it.
Outside temperature sensor fault P04
Check the AIN9 connector on the board
and measure the sensor's resistance; if it
is under 100 Ω or over 500 kΩ, replace it.
De-icing sensor fault P05
Check the yellow AIN8 connector on
the board and measure the sensor's
resistance; if it is under 100 Ω or over
500 kΩ, replace it.
Compressor aspiration sensor defect P07
Check the green AIN5 connector on
the board and measure the sensor's
resistance; if it is under 100 Ω or over
500 kΩ, replace it.
Resistance fault 6.8 kΩ P09
Check the AIN11 connector on the board
and measure the resistance; replace it if
R < 6.8 kΩ
Compressor discharge sensor fault P081
Check the black AIN12 connector on
the board and measure the sensor's
resistance; if it is under 100 Ω or over
500 kΩ, replace it.
Discharge temperature too high P082 Discharge temperature > 120°C
Measure the discharge temperature
at the outlet of the compressor; if
measured temperature < 120°C, replace
the sensor. Perform a non-condensable
test
High pressure protection E01 The sensor is open or has short-circuited.
Verify the AIN4 connectors on the card
or replace the sensor
Check the water flow
Check the water flow detector
Check the valve opening
Check the by-pass
Check the evaporator is not clogged
Water temperature too hot
Incondensable problem after
maintenance, empty and evacuate the
cooling circuit
Fluid load too high, remove fluid into a
liquid bottle
Low pressure protection E02 The sensor is open or has short-circuited.
Check the AIN3 connections on the card
or replace the sensor
Large coolant leak, search for the leak
with the detector
Air flow too low, check the ventilator
rotation speed
Check the evaporator is not clogged,
clean its surface