Error Codes - Hayward H150FD Service & Installation Manual

52
Figure 31: ERROR CODES
Description
bD
error
bD
bD
bD Data retrieval error
Flame present with gas
HF
Electrical supply wiring
PF
error
Blower vacuum switch
AO open error
Blower vacuum switch
open when expected
AO
closed error
Blower vacuum switch
AO open during post-purge
error
Blower vacuum switch
closed when expected
open error
Igniter open error
IO
Thermistor error
SF
Information
On initial trial for ignition. Automatic reset is immediate once the gas valve relay
check results are acceptable.
If valve is open when it should be closed the heater will shut down and go into
lockout. Blower will operate until error condition is corrected. Automatic restart
2 minutes after error is corrected.
ignition sequence. If error occurs 10 times during a call for heat the control will
go into lockout. Automatic reset is 60 minutes.
If control input data is corrupted the heater will shut down and go into lockout.
blower will run until error condition is corrected. When corrected, control will
run blower for 5 s then automatically restart after 2 minutes.
If the blower prover switch does not close after the blower starts the control will
stop the ignition trial go into lockout. The blower will continue to run. Automatic
reset is immediate after the switch closes.
If the blower prover switch opens unexpectedly during operation the control will
shut down and attempt to re-light. If the switch does not close after the blower
starts the control will go into lockout with the blower running. Automatic reset is
immediate after error is corrected.
ing) the control will display the error code. The post-purge cycle will be com-
pleted once the blower prover switch closes.
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.
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. Auto-
matic restart 2 min after error is corrected.
An excessive temperature difference between the two thermistors (5 °F or more)
180°F) will result in the error code. Automatic restart is 2 minutes after the error
is corrected.
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400
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www.haywardpool.com