48
Ludlow Standard Model ECG
– Natural Gas
E05
Indicates a flame is detected on pilot
before
valve has started.
Possible reasons:-
Carbon or other conductive contamination on spark electrode.
Combustible material burning on pilot near electrode (carbon deposits etc.).
E06 & E07
Indicates supply voltage is too low to operate valve.
Possible reasons:-
Batteries are completely flat (random error codes may also be displayed in this case).
Damaged battery contacts (dirty, corroded, bent
– not making strong stable connections).
Short circuit in external wiring or connected accessories.
Defective mains power supply (if used) or damaged wiring.
Problem with internal contacts of slide switch (sliding on/off multiple times may clear this
issue).
Batteries mounted incorrectly.
E08, E09, E10, E51
Indicates a device connected to Gas Valve extension socket does not work correctly.
Possible reasons:-
If nothing connected
– are links missing, in wrong position, or connected badly?
Failure in extension module connected to extension port.
E14, E15, E16, E17
Indicates buttons on valve (or wired control panel) do not work, or are incorrectly wired.
Possible reasons:-
Buttons are sticking or blocked.
Buttons are damaged.
Cable damaged, or short circuit to ground (wired control panel).
NOTE: Disconnect wired panel (if applicable) and re-test to determine root cause.
E19, E20, E27, E50, E54, E57, E58, E59, E60, E61
Indicates internal CPU diagnostic self-test has returned invalid results.
Possible reasons:-
EMC issue (try twisting ignition cable around thermocouple wire several times to quench
radiated EMC emissions).
Spark tracking out somewhere other than at electrode causing unusual interference.
E24
Indicates the thermocouple has not reached nominal final temperature within 1 minute of startup.
Possible reasons:-
Aged thermocouple.
Thermocouple wire insulation is damaged and shorting to metal chassis.
Problems with chimney, or room, air inlets (insufficient air circulation).
Unstable pilot flame (e.g. wind, unsuitable thermocouple position).
Contaminated pilot (poor flame to thermocouple).
Poor position of ceramic parts (e.g. coals, logs, or matrix).