Lynx Combi Boiler
11
DIAGNOSTIC ERROR CODES
WARNING:
If an operational problem has occurred, the boiler will
shut off and show an “A”, “E” or “H” in the mode display,
along with an error code in the temperature display.
Do not
attempt performing any service under these
conditions, but do note the mode and temperature dis-
play indication, in case the problem clears itself. An “A”
indication error can be cleared by pressing the reset
button once, which will allow re-try of operation. Do not
repeatedly press the reset button in this case, or if an
“E” or “H” indication error is displayed. Call a trained,
experienced service technician to troubleshoot and cor-
rect the problem. The Lynx Installation and Operating
Instructions, publication LX1-40 contain a full trou-
bleshooting section for this. Turn off all electric power ot
the boiler before service.
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.
B. BLOCKING ERRORS:
Indicated by an “E” in the mode display. Operation is
automatically restored, once the condition returns to
normal or is fixed. The temperature display shows
the error code. Pressing the “Reset” button is not
required.
ERROR
CODE
INDICATION
01
Ignition Failure - 3 unsuccessful ignition
attempts in a row
02
Flame Failure - 3 losses of flame signal
during one demand
03
Water High Limit Open
04, 05, 09,
10, 12, 13,
14, 15, 16,
18, 32
Control Failure
19, 20
Flame Detected at Wrong Time
33
Fan Failure - RPM Error
ERROR
CODE
INDICATION
01
Water Outlet Sensor Open
02
Water Inlet Sensor Open
03
Flue Gas Sensor Open
11
Water Outlet Sensor Shorted
12
Water Inlet Sensor Shorted
13
Flue Gas Sensor Shorted
19, 42,
45, 46,
47, 48
Control Failure
20
Flame Detected at Wrong Time
21
Polarity Error
22
Frequency Error
24
Earth Connection Faulty
30
Excess Flue Temperature
31
Low Water Cutoff Error
32
Excess Water Inlet Temperature
51
Reset Button Error
52
Boiler Model Selection Error
