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INST 396 Jacuzzi® J-HN Series Heater V12-16
DISPLAY SYMBOL INDICATION
Under fault conditions the thermostat will display a set of alpha numeric symbols to indicate the status of the heater. The meaning
of each symbol and action to be taken are listed as follows:
Heater locked off, thermistor wire disconnected or water at 36ºF
(0º C) (freeze conditions).
If water temperature reads greater than
36ºF ) (0º C), phone for service.
Thermostat reads greater than 113ºF.(45ºC)
Allow water to cool below 104ºF (40º
C), turn heater off then on again.
Mechanical Hi Limit greater than 109ºF or 125ºF (43º or 52ºC)
and/or
Low water flow
Allow water to cool below 86ºF (30º C),
turn heater off then on again.
Make sure water is flowing through
heater.
Service required. www.Jacuzzipool.com
Heater locked out on time delay for 2 minutes.
No Action. Heater will automatically
reset after the time delay.
Pump operating and sufficient water pressure to operate heater.
Thermostat calling for heat. Electronic Flame Supervision
operating.
MAINTENANCE
It is recommended that you check the following at least every six months and at the beginning of every swimming season.
1. Examine the flue outlet and panel louvers for blockages. Make sure there are no obstructions to the flow of air to or from the
appliance.
2. Keep the heater area clear and free of combustibles and flammable liquids. Chlorine should not be stored in the vicinity of the
heater. Chlorine and acid vapors, when drawn through a heater, can rapidly cause corrosion of the heat exchanger.
3. Keep the heater area free from garden refuse and debris. This will help prevent insects nesting in the unit and ensure extended
life and reliability of your heater.
4. Have your heater professionally inspected at least every 2 years or when used daily for 6 months each year, have it inspected
once a year.
WINTER OPERATION
If the pool is not being used for a month or more, turn the heater off at the main gas isolation valve. For areas where there is no
danger of freezing, water should circulate through your heater all year long even though you are not heating your pool.
It is necessary to drain the water from the heater where freezing is possible. This may be done by loosening the inlet or outlet
barrel union. If the heater is below water level, isolate it from the pool first by closing shut off valves before and after the heater.
CAUTION: If the heater has been drained for freezing conditions, do not turn on until the system is circulating water
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