Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
13
AO
Prover switch open dur
-
ing post-purge error
If the blower prover switch opens during the post-purge cycle (heater is not fir
-
ing) the control will display the error code. The post-purge cycle will be com
-
pleted once the blower prover switch closes.
AC
Prover switch closed
when expected open
error
If the blower prover switch is closed before blower start-up the control will not
start the blower. Automatic reset is immediate when the switch opens.
IO
Igniter open error
If the control is not in lockout and senses that the igniter circuit is open when
the blower is running the control will turn off the blower and go into lockout.
Automatic restart 2 min. after error is corrected.
SF
Thermistor error
An excessive temperature difference between the two thermistors (5 °F or more)
or an “out of bounds” condition on both sensors (less than 10°F or greater than
180°F) will result in the error code. Automatic restart is 2 minutes after the error
is corrected.
HS
Excessive water
temperature error
If water temperature exceeds 105°F the heater will shut down and go into lock
-
out. Automatic restart is 2 minutes after water temp. drops below 105°F.
HE
Rapid water
temperature rise
If water temperature rises too rapidly the heater will shut down and go into lock
-
out. Automatic restart is after 2 minutes. After the third occurrence in the same
call for heat the heater will lock out.
Sb
Keypad button stuck
closed error
If one of the keypad buttons is closed (or pressed) for more than 30 s the error
code will be displayed but the control will continue to function. The error code
will be cleared when the condition is corrected.
IF
Ignition failure error
If the control exceeds the maximum number of ignition retries or recycles the
heater will shut down and go into lockout. Automatic reset is 60 minutes.
CE
Communication error
If communication between the ignition board and the display board is not estab
-
lished within 3 s of power-up an error will be displayed. After communication is
established, if it is lost for 30 s, the error will be displayed. The error code will
be cleared upon a valid data exchange between boards.
LO
Limit string open error
If the limit string opens the heater shuts down and goes into lockout. Automatic
restart is 2 minutes after the error condition is corrected and the limit string
closes.
EE
EEPROM error
An error was detected in the ignition control circuit board.
Figure 5:
ERROR CODES
(continued)