FH3X-8K-HY-1P-15 (AS4777-2 2020)

Pylontech offers a 10-year warranty covering defects in workmanship or materials for their Force H3X Series Hybrid Energy Storage System. To make a claim, retain your invoice, complete the warranty card, and submit it along with any required product data.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape

Full-replacement coverage

If you sell the home

Does not transfer with the home

What voids it

Improper installation, negligence, transportation damage, storage or modification by unapproved personnel, misuse or abuse, connection to non-Pylontech equipment, failure to maintain properly, and normal wear and tear.

Showing 18 of 18. The official install manual is the authoritative source — always confirm before acting.

• E0criticalCall your installer

  Manual (PDF)

  PV overvoltage protection

  Likely cause

  Mismatch between PV input and device parameters

  What to do

  Please make sure that the input parameters of PV meet the requirements of equipment parameters.

• E3criticalCall your installer

  Manual (PDF)

  AC overvoltage/undervoltage protection

  Likely cause

  Wrong choice of grid standards

  What to do

  Ensure that the power grid standard is correct.

• E4criticalCall your installer

  Manual (PDF)

  AC over-frequency and under-frequency protection

  Likely cause

  Wrong choice of grid standards

  What to do

  Ensure that the grid standard is selected correctly.

• F3criticalCall your installer

  Manual (PDF)

  Unrecoverable System Failures

  Likely cause

  False alarm or abnormal self-test

  What to do

  Restart and reconfirm and contact the manufacturer for confirmation if the fault cannot be solved.

• F4criticalCall your installer

  Manual (PDF)

  Unrecoverable Critical Failures

  Likely cause

  The battery is damaged or the battery type is wrong or the installation connection is unreliable.

  What to do

  Please contact the manufacturer for confirmation.

• E1warning

  Manual (PDF)

  Battery voltage overrun

  Likely cause

  The number of batteries exceeds the upper limit of equipment support.

  What to do

  Confirm the equipment specifications and the maximum number of batteries to be connected, and reasonably configure the number of batteries.

• E2warningCall your installer

  Manual (PDF)

  Battery not connected

  Likely cause

  Battery not installed in energy storage system

  What to do

  The whole energy storage system must be used together with batteries, otherwise the system itself does not meet the IP rating.

• FEwarning

  Manual (PDF)

  Prolonged network failure

  Likely cause

  FH3X energy storage system needs to be connected to the network, if the network is disconnected for a long time or not connected to the network, the system will not be able to be used.

  What to do

  Perform network operation to maintain stable network usage.

• FFwarning

  Manual (PDF)

  WIFI collector communication failure

  Likely cause

  Abnormal communication between storage system and collector

  What to do

  Restart and reconfirm, and contact the manufacturer for confirmation if the fault cannot be solved.

• L0warning

  Manual (PDF)

  Overheating

  Likely cause

  The system charges and discharges the battery with high power for a long time

  What to do

  Reduce the load or stop charging and discharging the battery, and use the energy storage system reasonably.

• L1warning

  Manual (PDF)

  Under-temperature

  Likely cause

  System ambient temperature is too low

  What to do

  External physical heating of the energy storage system

• L2warning

  Manual (PDF)

  Overvoltage

  Likely cause

  Battery system false alarm

  What to do

  Restart the system to reconfirm

• L3warning

  Manual (PDF)

  Undervoltage

  Likely cause

  Off-grid operation, excessive standby time

  What to do

  Set the cut-off SOC reasonably, and recharge the battery in time

• L4warningCall your installer

  Manual (PDF)

  Sleep

  Likely cause

  Grid-connected operation, battery failure resulting in severe battery undervoltage

  What to do

  Contact the manufacturer for any unrecoverable faults in the system operation

• L5warning

  Manual (PDF)

  Charge overcurrent

  Likely cause

  Battery system false alarm

  What to do

  Restart the system to reconfirm

• L6warning

  Manual (PDF)

  Discharge overcurrent

  Likely cause

  Load overrun

  What to do

  Set the load appropriately.

• E5info

  Manual (PDF)

  Abnormal heat dissipation of the system

  Likely cause

  Ensure that there is room for heat dissipation in the controller heat sink,and the installation environment is well ventilated as much as possible.

  What to do

  Avoid direct sunlight on the installation location of the energy storage system.

• F2info

  Manual (PDF)

  Other routine failures that can be recovered

  Likely cause

  False alarms or communication abnormalities

  What to do

  Wait for recovery or restart and contact the manufacturer for confirmation if the fault cannot be solved.