FAQ & Support

• Install vertically upright only.
• Do not lay flat — this impairs cooling and may cause damage.
• Do not tilt backward or install inverted.

1. Label all cables clearly before connection to reduce errors.
2. Before connecting, use a multimeter to measure the positive and negative input voltages of the array — confirm correct polarity and that voltage does not exceed the maximum input.
3. Use dedicated PV connector crimping tools.
4. Where possible, use a thermal camera or infrared thermometer to check connector temperatures after grid-connection begins.

1. Tighten all cable sealing glands securely.
2. Seal all unused ports with appropriate plugs.
3. Close the cable entry cover tightly.
4. Apply conduit sealant to cable entry points.
5. Confirm the waterproof cover is fitted and locked.

Common causes of low power generation:

1. Weather conditions (cloud cover, low irradiance)
2. High ambient temperature reducing panel efficiency
3. Suboptimal panel orientation (not facing solar south/north)
4. Excessive shading from nearby objects
5. Incorrect panel tilt angle
6. Dust or soiling on panel surface
7. Panel mismatch in the array
8. Panel output overstated by manufacturer
9. Grid instability or voltage issues
10. Inverter fault — check error codes on display

Monitoring interruptions are typically caused by:

• Weak Wi-Fi or GPRS signal at the installation location
• Internet service overdue (home broadband subscription lapsed)
• Router configuration issues or router failure
• Router overloaded with too many connected devices
• Loose communication module connector
• Communication cable mixed with power lines (interference)
• Faulty communication module
• Inverter fault — check device display

There are 4 EPS modes available:

• Mode 0 – Disable: EPS function disabled. No backup power output.
• Mode 1 – EPS without bypass: EPS port provides output only when the grid fails. Recommended for basic backup protection.
• Mode 2 – EPS with bypass: Includes bypass switching. EPS output available with grid-failover transition.
• Mode 3 – Advanced: Contact WOWTIGER support for configuration guidance specific to your installation.

WOWTIGER batteries use Lithium Iron Phosphate (LFP) chemistry, which provides:

• 6,000+ charge cycles at 80% depth of discharge before reaching 80% of original capacity
• 10–15 year typical real-world lifespan under normal operating conditions
• Superior thermal stability compared to NMC batteries — reduced risk of thermal runaway

For maximum longevity, avoid consistently charging to 100% or discharging below 10% state-of-charge.

Yes — WOWTIGER's MAX series and C&I systems are designed for modular expansion. You can add battery modules to increase total capacity without replacing existing equipment. Contact our technical team to confirm compatibility between your inverter and the additional modules you wish to add.