Keypad Inputs; Automatic Reset Time; Periodic Inspection - Hayward H250FDN Service & Installation Manual



KEyPAD INPUTS:

The control accepts user inputs via the keypad on the front panel.
1. When changing the mode from "STANDBY" to either "SPA" or "POOL" there may be up to a 10-
second delay for the blower fan to begin running. The control performs an internal self-test and then
verifies that the blower vacuum switch contacts are open before energizing the blower.
. It is normal for the heater to display a 1- to -second delay in responding to any keypad input.
. It is normal for the heater to display up to a 5-second delay when the keypad is used to reset the con-
trol to clear an error code.
. The control will accept a mode change during lockout after 5 seconds. The control will continue to
display the error code and remain in lockout until it is reset. At reset the control will go to the last
saved mode.

AUTOMATIC RESET TIME

The heater will automatically reset when an error condition is corrected and resume operation as detailed
in the table below. The heater can be manually reset using the keypad by cycling the mode button through
"STANDBY" and back to the original operating mode ("SPA" or "POOL").

PERIODIC INSPECTION:

The heater is designed and built for long performance life when installed and operated according to the
manufacturer's directions. Regular inspection by qualified service personnel is recommended to keep the
heater working properly. The following inspection points are suggested to help maximize heater life.
1. Periodically check the venting on outdoor heaters. The heater's venting areas (the louvered top
panel) must never be obstructed in any way and minimum clearances must be observed to prevent
restriction of combustion and ventilation air. Remember that shrubs grow and in time may obstruct a
heater's venting areas.
2. Check the venting of indoor heaters for looseness and possible leaks. Keep all openings for combus-
tion and ventilation air clear and unobstructed.
3. Keep the entire pool heater area clean and free of all debris, combustible materials, gasoline, and
other flammable vapors and liquids. Remove any leaves or paper from around the heater.
. Do not store chlorine, other pool chemicals, or other corrosives in the vicinity of the heater.
5. If the heater is operating on propane gas, the tank must not fall below 0% full or damage to the
heater may occur. Hayward will not be responsible for heaters that soot up due to improper gas level
in the tank resulting in inadequate gas volume.
. If another appliance is added to the gas line at a later date, consult the local gas company to be sure
the gas line will have the capacity to supply both units at full input rating at the same time.
7. Do not use the heater if any part has been under water. Contact a qualified service technician to
inspect the entire heater and replace any part of the control system or gas valve that was under water.
If heater has been totally submerged in water it must be removed and the entire heater must be re-
placed.
8. An inspection program is a good preventative maintenance measure. Keep this manual in a safe
place for future reference for yourself as well as for a service technician to consult when inspect-
ing or servicing the heater. Additional inspection procedures to be performed by a qualified service
technician are covered in
:
Section VI of this manual.
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com