Electrolux EN18WI30LS, Руководство по обслуживанию, Страница: 20 / 46

Remarks
(F) 10 Combustion abnormality
(BTU Drop)
(Unit Continues Working)
Check for abnormal combustion.
Check flue for blockage or obstruction.
To reset this error code, the power needs to
be disconnected and then reconnected.
(F) 11 Ignition failure
(Initial flame fault detection)
Check the gas supply piping and pressure. Check for igniter spark
(12). Check gas solenoid valves (13, 14, 15, 16). Check flame rod
(17). Check ground, paying special attention to the ground
connection to the circuit board.
(F) 12 Flame rod does not detect flame
(Flame fault detection)
Check for accidental extinction of the flame. Check for abnormal
combustion. Check gas solenoid valves. Check flame rod (17).
Check ground, especially on circuit board.
(F) 14 Overheat Prevention Device
(Thermal Fuse) triggered
Check for melting or damage to the thermal fuse (1).
Check for improper connection of thermal fuse.
(F) 16 Abnormally high output temperature Measure the resistance through the outlet thermistor (6).
Check for gas proportioning valve trouble (16).
(F) 20 High limit switch triggered Check if high limit switch is triggered (20).
Check for improper connection of high limit switch.
To reset this error code, the power needs to
be disconnected and then reconnected.
(F) 29 Condensate drain trap abnormality Check for Condensate Drain trap blockage (22).
Check for drain pipe blockage.
Check for improper connection of water level electrode.
Note 2)
(F) 30 Air inlet thermistor abnormality Measure the resistance through the air inlet thermistor (21).
Check for an open or short circuit.
Check for improper connection of air inlet thermistor.
(F) 31 Inlet thermistor abnormality Measure the resistance through the inlet thermistor (5).
Check for an open or short circuit.
Check for improper connection of inlet thermistor.
(F) 32 Outlet thermistor abnormality Measure the resistance through the outlet thermistor (6).
Check for an open or short circuit.
Check for improper connection of outlet thermistor.
(F) 33 Heat exchanger thermistor abnormality Measure the resistance through the heat exchanger thermistor (7).
Check for an open or short circuit.
Check for improper connection of heat exchanger thermistor.
(F) 35 Exhaust thermistor abnormality Measure the resistance through the exhaust thermistor (8).
Check for an open or short circuit.
Check for improper connection of exhaust thermistor.
(F) 51 Failure of gas solenoid valve
(other than drive circuit)
Check for proper connection of the gas solenoid valves.
Check for damage to the gas solenoid valve connections.
Note 1)
(F) 61 Fan motor abnormality Check that the fan is rotating and check the pulse frequency from
the fan rotational frequency sensor (10, 11). Check for improper
connection of the fan. Check voltage from circuit board.
(F) 65 Heat exchanger flow control valve
abnormality
Check that the main flow control valve is functioning (2).
Check for improper connection of the valve.
To reset this error code, the power needs to
be disconnected and then reconnected.
(F) 66 Bypass flow control valve abnormality Check that the Bypass control valve is functioning (3).
Check for improper connection of the valve.
To reset this error code, the power needs to
be disconnected and then reconnected.
(F) 70 Circuit board abnormality Circuit board failure
(F) 71 Gas solenoid valve drive circuit
abnormality
Check for damage to the gas solenoid valve drive circuit on the
circuit board.
(F) 72 Flame rod circuit abnormality
(Detection of flame when no flame is
present)
Measure the current from the flame rod when there is no flame (9).
Check for a ground fault.
(F) 73 Circuit board setting abnormality
(Dip switch, Hard dip switches, etc)
Check for proper setting of maintenance writers on circuit board.
Check the circuit board (microcomputer) for damage.
Check the Dip switch.
Check the Hard dip switches(located on circuit board).
To reset this error code, the power needs to
be disconnected and then reconnected.
Note 1)
760 Remote controller transmission
abnormality
Check connection from remote controller to circuit board.
Check remote controller and circuit board for damage.
Note 1)
F76 Multi-system communication error Check for proper connection of quick connect cord. Note 1)
Combustion abnormality
(Warning indication)
Check for abnormal combustion.
Check flue for blockage or obstruction.
Combustion abnormality
(Unit shuts off)
Check for abnormal combustion. Check flue for blockage or
obstruction. Check that flame ignites all across the burner.
To reset this error code, the power needs to
be disconnected and then reconnected.
(F) 91 Improper gas type Check gas type. To reset this error code, the power needs to
be disconnected and then reconnected.
Note 1)
(F) 94 Exhaust temperature is too high Check for abnormal combustion (8).
To reset this error code, the power needs to
be disconnected and then reconnected.
(F) 99 Combustion abnormality
(Unit shuts off)
Check for abnormal combustion.
Check flue for blockage or obstruction.
To reset this error code, the power needs to
be disconnected and then reconnected.
*In a quick connect multi-system, "F##"(except F76) indicates an error code from the secondary unit (unit without a remote).
Note 1) This error code is not mentioned in the flowchart.
Note 2)
(F) 90
The ON/OFF condition of the neutralizer water level electrode can be checked using the maintenance monitors. When maintenance monitor number 19
reads "000", the condition of the electrode is normal. When this monitor reads "001", the condition of the electrode is abnormal.
Error Codes and Checkpoints
<EN19WI30LS, EP19WI30LS>
Diagnosis Point (Trouble Point)
Description
20