Hayward SUMHEAT HP5171DT3, Installation Instructions Manual

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42
6. APPENDIX (continued)
Problem
Error
codes
Description Solution
Flow sensor fault E03 The sensor is open or has short-circuited.
Check the AIN2 connections on the card
or replace the sensor
Lack of water, check the filtration pump
operation
Check the stop valve opening
Check the by-pass adjustment
Water outlet temperature fault E05
Applies only in Cold mode, Water outlet
temperature < 4°C
Stop the heat pump, serviceability limit
reached
Input/Output temperature difference
> 13°C
E06 Applicable in Cold mode only
Lack of water, check the filtration pump
operation
Check the stop valve opening
Check the by-pass adjustment
Antifreeze protection Cold mode E07 Water output temperature < 4°C
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.
Stop the heat pump, drain the
condenser, high risk of it freezing.
Communication problem E08
No communication between the printed
circuit board and the user interface
Check the connectors - see the wiring
diagram
Level 1 antifreeze protection E19
2°< Water temperature < 4°
and Air temperature < 0°
Stop heat pump operation, empty the
condenser to avoid freezing, by default
the heat pump starts the filtration pump
to avoid icing over
Level 2 antifreeze protection E29
Water temperature < 2°
and Air temperature < 0°
Stop heat pump operation, empty the
condenser to avoid freezing, by default
the heat pump starts the filtration pump
and the heat pump to avoid icing over.
DC1 fan motor fault F031 Motor jammed or faulty connection
Check free rotation; check CN1
connectors; replace the motor
The heat pump does not start F08 Possibly an inversion or lack of phase
Reverse two phases on the R-S-T
terminal block.
Check the connection and tightness of
the phases.
Exterior temperature too low TP
Outdoor temperature too low,
< H34 (-15°C fault)
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.
Check the value of parameter H34
Pressure sensor fault PP The sensor is open or short-circuiting
Check the connections see electrical
diagram