Hayward H400FDN User Manual

YES
“AO” Code
58
Replace blower:
Please refer to
(pg. 20)
Is blower
damaged?
14. Service LED ON: “AO” Code
Are blower
vacuum switch
wires damaged?
YES
YES
Replace blower
vacuum switch:
FDXLBVS1930
NO
Is vacuum tube
damaged?
NO
Replace
vacuum tubing:
IDXL2SNT1930
YES
NO
YES
Correct voltage
selector plug?
NO
Install correct
plug and
replace fuse
Ohm out blower for 8-
9ohms (before Sept.
2010) OR for 4-5ohms
(after Sept. 2010), is
resistance correct?
Replace blower:
Please refer to
(pg. 20)
NO
Verify 110-125VAC on
Inducer off ICB between
pins 1-2 (left to right), is
voltage present?
YES
NO
Replace blower
vacuum switch:
FDXLBVS1930
Replace ICB:
FDXLICB1930
Go to
section B
section B

Hayward H400FDN Specifications

General

Type	Natural Gas
BTU Input	400, 000 BTU
Pool Type	In-ground
Heat Exchanger	Cupro Nickel
Voltage	120V
Efficiency	84%
Water Flow Rate	40-120 GPM
Inlet/Outlet Size	2 in
Ignition	Electronic