Troubleshooting - Hayward HP50HA2 Installation And Operation Manual

TROUBLESHOOTING: See TABLE 5: Troubleshooting Lookup Chart.
ERROR and OPERATION CODES: See TABLE 6 and TABLE 7.
AUTOMATIC RESET TIME: The heater will automatically reset when an error condition is corrected and resume operation.
NOTICE - These instructions are intended for the use of qualified personnel trained and experienced in the installation and servicing of this type of
heating equipment and its related system components. Some states may require installation and service personnel to be licensed. Persons not qualified
should not attempt to repair this equipment according to these instructions. These instructions and procedures are not for the use of "do-it-yourself"
consumers.
NOTICE - As a preliminary check, make sure that all wire connections are clean and tight and that all wiring conforms to the wiring diagram.
INTERNAL WIRING: If the heater display is blank after the electrical has been installed, refer to Troubleshooting Lookup Chart to determine the cause. Note, the
cable between the display board and the control board is keyed to ensure correct connection.
Problem
Unit is not operating
Heat pump is running but
Display LEDs not on
Heat pump runs continually
Heat pump is cycling
(on / off too quickly)
Water is coming from
bottom of unit
WARNING
- To avoid possible outer jacket damage or injury: (1) no materials should be stored against the jacket and (2) care should be
taken to avoid unnecessary contact (especially by children) with the jacket.

Troubleshooting

TABLE 5: Troubleshooting Lookup Chart
Possible Cause
No power to unit
Breaker is tripped
Thermostat too low
3 minute compressor delay timer still running Be sure the delay has passed
Low water flow
Outside temperature too low
Fan not functioning
System Component Failure
Thermostat set too high for ambient
temperature
Evaporator is dirty
Electrical component failure
Bad bypass valve or improper water flow
Low refrigerant, low abient temperature, or
high humidity with low ambient temperature
Condensation
Possible water leak
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Possible Solution(s)
Make sure power is on
Check the breaker / see note above
Turn thermostat up until unit comes on
Make sure filter is clean
Make sure filter pump is on
Unhook cleaning devices
Check outside ambient temperature or wait for warmer tempera-
tures to operate (Refer to Operating section)
Call for service
Call for service
Turn thermostat down
Clean by running tap water over the coil without additional nozzle
attachment. Do not use pressurized water as it can damage the coil
and void warranty.
Turn off pump. If the unit is still running after 3 minutes, turn off the
power to the unit and call for service.
Ensure water flow is sufficient (is the filter pump running
continually?) If heat pump continues to cycle, turn unit off to pre-
vent compressor damage.
Check evaporator coil for severe frost. Turn unit off to prevent
compressor damage.
If heat pump continues to cycle, turn unit off to prevent compressor
damage. Call for service.
This is normal and there is no reason to be concerned
Turn the unit off for several hours, but leave the filter pump running
continuously. If water quantity decreases, then it is only
condensation. Otherwise there is a possible leak.
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