Hayward ENERGYLINE INVERTER Series, Installation & Operation Manual

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Page 32
7. TROUBLESHOOTING
7.1 Error Codes
Problem
Error
codes
Description Solution
Water inlet sensor fault
P01
The sensor is open or has
short-circuited.
Check the CN21/RES1 connections on the PCB or replace the sensor
Water outlet sensor fault
P02
Check the N22/RES2 connections on the PCB or replace the sensor
Outside temperature sensor fault
P04 Check the CN12/PH connections on the PCB or replace the sensor
De-icing sensor fault P05 Check the CN8/OPT connections on the PCB or replace the sensor
Compressor aspiration sensor defect P07 Check the CN7I/OAT connections on the PCB or replace the sensor
Compressor discharge sensor fault P081 Check the CN9/OHT connections on the PCB or replace the sensor
High pressure protection E01
The sensor is open or has short-
circuited.
Check the CN30/HP connections on the card or replace the sensor
Check the water flow
Check the water flow switch
Check the valve opening
Check the by-pass
Check the finned coil is not clogged
Water temperature too hot
Incondensable problem after maintenance, empty and evacuate the
cooling circuit
Refridgerant load too high, remove fluid into a liquid bottle
Low pressure protection
E02
The sensor is open or has short-
circuited.
Check the AI/DI03 connections on the card or replace the sensor
Large gas leak, search for the leak with the detector
Air flow too low, check the ventilator rotation speed
Check the Finned Coil is not clogged, clean its surface
Flow sensor fault
E03
The sensor is open or has short-
circuited.
Check the AI/DI0 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
Input/Output temperature difference
> 13°C
E06
Applicable in Cooling mode only
Lack of water, check the filtration pump operation
Check the stop valve opening
Check the by-pass adjustment
Antifreeze protection Cooling mode
E07
Water output temperature < 4°C Stop the heat pump, empty the condenser risk of freezing
Communication problem
E08
No communication between the parent
electronic card and the Inverter card
Check the connections (see electrical 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.
Fan motor fault F031 Motor jammed or faulty conntection Check free rotation; check CN97/DC connectors; replace the motor
Fan motor fault
F051
Faulty connection Check the DCFAN/CN97 connector; replace the motor
Exterior temperature too low TP Operating limit reached Stop the heat pump