Slant/Fin LX-150 - Manual (Page 38)

Lynx 38
ERROR CODE INDICATION REMEDY
01
Ignition Failure - 3 unsuccessful
ignition attempts in a row.
Check for steady sparking at electrodes. If spark not
steady - check spark gap to be .125”, clean or replace
spark ignitor, check power supply voltage and grounding.
If spark is steady - check for proper gas supply pressure.
Check combustion, if able to ignite, or replace gas valve.
02
Flame Failure - 3 losses of flame
signal during one demand.
Check for proper combustion, at both max. and min.
input firing rates. If combustion is within the range
specified in Table 6 on page 36, clean or replace spark
ignitor, check power supply voltage and grounding.
03 Water High Limit Open
Check to see if the water outlet temperature reaches
203˚F. If it does, replace the water outlet 12k ohm
sensor. If it does not, replace the water high limit switch.
04, 05, 09, 10,
12, 13, 14, 15,
16, 18, 32
Control Failure
Replace control board. Make sure the proper boiler
model selection and confirmation code is entered.
See Table 5 on page 32.
19, 20 Flame Detected at Wrong Time
If a flame is still observed after a call for heat is stopped,
replace the gas valve. If the burner seems to be shutting
down properly, replace the spark ignitor.
33 Fan Failure - RPM error
Check wire harness connections going to the blower.
Replace blower.
A. LOCKOUT ERRORS: Indicated by an “A” in the mode display. The reset button must be pressed to clear the error
and retry operation. The temperature display shows the error code.
VI. DIAGNOSTIC ERROR CODES
WARNING: Only a trained, experienced service technician
should perform troubleshooting. Turn off all electric power to
the boiler before service.