Lochinvar EcoSword LGC 245-420 G P CE User Manual (English)

Questions and Answers:

D
davislatoyaSep 6, 2025
What does C02 Control error mean on my Lochinvar Water Heater?
- B
  Belinda KimSep 6, 2025
  A (lock out error) C02 error on your Lochinvar Water Heater, indicating a control error, can be due to an incorrect reference voltage from the AD converter. Ensure the wiring and flame probe are not damaged, replacing them if necessary, and make sure the flame probe is not bent. Reset the controller. If the error reappears, verify the power supply frequency is 50 Hz (-1, +1 Hz). If the frequency is incorrect, contact your service and maintenance engineer; if correct and the error persists, replace the controller.
M
Michael CainAug 25, 2025
Why is my Lochinvar EcoSword LGC 245-420 G P CE Water Heater not producing enough hot water?
- C
  Chelsea SmithAug 25, 2025
  If you have insufficient or no hot water from your Lochinvar Water Heater, it could be due to several reasons. First, ensure the water heater is turned on. Next, check the power supply, verifying that the control switch is set to 'I', the isolator is in the 'ON' position, and there is proper voltage (230 VAC -15%, +10%) at the electrical connector block. Also, make sure that the controller is in the ON mode and the temperature is set high enough. Finally, consider whether the hot water supply has been used up, and if so, reduce consumption and wait for the water to reheat.
E
Erica Clark MDAug 25, 2025
Why is the display off on my Lochinvar EcoSword LGC 245-420 G P CE Water Heater?
- L
  Laura RivasAug 26, 2025
  If the display on your Lochinvar Water Heater is off, there are a few potential causes. First, ensure that the water heater is turned on. If it is on, check the power supply by verifying that the control switch is set to 'I', the isolator is in the 'ON' position, and there is proper voltage (230 VAC -15%, +10%) at the electrical connector block. Also, check the fuse(s) and replace them if they are defective.
N
njohnsonAug 27, 2025
What to do if my Lochinvar EcoSword LGC 245-420 G P CE Water Heater is leaking water?
- J
  John PayneAug 27, 2025
  If you notice water leaking from your Lochinvar Water Heater, there are several possible causes. First, check for leaks from any threaded water connections and tighten them if necessary. If the leakage is condensate, ensure that the condensation water discharge is working correctly and correct it if needed. Also, inspect the surrounding area for leaks from other water heaters or pipe segments. If the leak appears to be coming from the water heater tank itself, contact your supplier.
C
Christina RamirezAug 27, 2025
Why does my Lochinvar Water Heater have explosive ignition?
- K
  Kevin KrauseAug 27, 2025
  An explosive ignition in your Lochinvar Water Heater can be caused by several factors. Check the gas supply pressure and CO2 value. Also, the burner may be contaminated and needs cleaning. Finally, inspect for air leaks between the venturi and the flexible air connector, ensuring the connector is not damaged and is correctly connected and tightened.
C
Curtis ParkerAug 28, 2025
How to fix a F04 Ignition error on my Lochinvar EcoSword LGC 245-420 G P CE?
- A
  Ashley KhanAug 28, 2025
  A (lock out error) F04 on your Lochinvar Water Heater, indicating an ignition error with three unsuccessful attempts, can stem from several issues. Start by ensuring the main and manual gas supply valves are open and that the gas supply pressure to the gas control valve is correct. Also, check for air in the gas pipes and bleed it out if necessary. Inspect the hot surface igniter circuit for correct installation, wiring damage, and proper resistance (36-72 Ohms at room temperature), ensuring it lights up during ignition. Similarly, examine the ionization circuit for correct flame probe installation, wiring integrity, and a minimum ionization current of 3 µA. Finally, verify that the supply voltage is correct and that the flame probe is not bent or has a broken ceramic part.
J
Jacob SparksSep 12, 2025
What does F01 Control error mean on my Lochinvar EcoSword LGC 245-420 G P CE Water Heater?
- M
  Michelle JonesSep 12, 2025
  A (blocking error) F01 error on your Lochinvar Water Heater indicates that the live and neutral wires are connected the wrong way around. Ensure that the live and neutral wires are connected correctly and rectify if necessary.
A
Amy HurstSep 12, 2025
What does F09 Temperature error mean on my Lochinvar EcoSword LGC 245-420 G P CE?
- N
  nelliottSep 12, 2025
  A (lock out error) F09 error on your Lochinvar Water Heater, indicating a temperature error, means the temperature in the tank is above 97ºC. Refer to the measures for error E01. Also, ensure the wiring between pins 1 and 7 of connector J9 is connected and undamaged; replace or reconnect the wiring if necessary, and then reset the controller.
C
Connor CarlsonSep 3, 2025
How to fix E03 Temperature error on my Lochinvar Water Heater?
- T
  Tamara CortezSep 3, 2025
  A (lock out error) E03 error on your Lochinvar Water Heater, indicating a temperature error where the temperature difference between sensor 1 and sensor 2 exceeds 10ºC for at least 60 seconds, can be resolved by checking the sensor wiring. Ensure the wiring is connected and undamaged. Reset the controller, and if the error persists, replace the sensor and/or wiring.
R
rebecca22Sep 1, 2025
What does F19 Supply voltage error mean on my Lochinvar EcoSword LGC 245-420 G P CE?
- H
  Holly CherrySep 2, 2025
  A (blocking error) F19 on your Lochinvar Water Heater, indicating a supply voltage error with three unsuccessful ignition attempts, suggests an issue with the voltage supply. Ensure the measured voltage between live and neutral is 230 VAC (-15%, +10%) and between live and earth is between 110 VAC and 230 VAC (-15%, +10%) during operation. If the voltage is outside this range, contact your maintenance and service engineer or install an isolating transformer.