Jaguar Model J-390
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 dis-
play, along with an error code in the temperature dis-
play.
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 Jaguar Installation and Operating
Instructions, publication J-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.
C. WARNING ERRORS:
Indicated by an “H” in the mode display. Operation
of the space heating mode is not affected, and the
warning is displayed intermittently. Operation of the
DHW mode is automatically restored, once the
condition 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
ERROR
CODE
INDICATION
04
Domestic Hot Water Tank Sensor Open
14
Domestic Hot Water Tank Sensor Shorted
