Introduction

Does your inverter suddenly switch off and on again?
Does it trip when you plug in certain appliances?
Does it shut down under load or during PHCN/generator changeover?

Frequent inverter tripping is a major sign that something is wrong with your solar or electrical installation.

In this guide, Solarzone Nigeria explains why your inverter trips frequently and how to fix it permanently.

⭐ 1️⃣ Overload (Most Common Cause)

Your inverter has a maximum load it can carry.
If the connected appliances exceed its capacity, it will trip.

❌ Common overload culprits:

• AC

• freezer

• microwave

• pressing iron

• electric kettle

• pumping machine

• blender

• washing machine

✔ Fix:

• reduce load

• remove heavy appliances

• upgrade your inverter capacity

📌 If your inverter trips when AC or freezer starts → overload + surge issue.

⭐ 2️⃣ Weak or Failing Batteries

Weak batteries cause:

• voltage drop

• low backup

• inverter tripping under small load

❌ Signs:

• inverter trips at night

• runs only 30–60 minutes

• battery charges slowly

• battery voltage drops quickly

✔ Fix:

• test battery

• replace old/weak batteries

• upgrade to lithium

Weak batteries are one of the top reasons for tripping.

⭐ 3️⃣ Low Battery Voltage

When battery voltage drops below safe level, inverter shuts down.

❌ Causes:

• cloudy weather

• insufficient solar panels

• high nighttime load

• wrong inverter settings

• weak battery

✔ Fix:

• add more panels

• adjust charging settings

• reduce evening load

• upgrade battery capacity

⭐ 4️⃣ Wrong Inverter Settings

If configured incorrectly, the inverter may trip due to:

• wrong battery type

• low voltage cutoff

• incorrect AC input mode

• wrong charging current

• wrong frequency

✔ Fix:

Let Solarzone reprogram:
✔ battery mode
✔ AC priority
✔ cutoff voltage
✔ bulk/float voltage

Proper settings = stable performance.

⭐ 5️⃣ Faulty or Undersized Wiring

Thin or burnt wires cause:
❌ voltage drop
❌ heat
❌ tripping
❌ inverter damage

✔ Fix:

• use correct cable sizes

• replace burnt wiring

• tighten all terminals

Solar systems need thick cables for AC & DC lines.

⭐ 6️⃣ Faulty MPPT/Charge Controller

If MPPT is faulty:

• battery won’t charge properly

• inverter runs on low battery

• inverter trips often

✔ Fix:

• test MPPT

• replace faulty controller

• upgrade to high-efficiency MPPT

⭐ 7️⃣ Short Circuits in the House or Office

If a socket or appliance is shorted, inverter trips for protection.

❌ Common short areas:

• bad extension boxes

• faulty wall sockets

• burnt wires

• damaged appliances

✔ Fix:

• check all sockets

• disconnect all appliances

• reconnect one by one

Solarzone can trace short circuits quickly.

⭐ 8️⃣ Overheating (Inverter Temperature Too High)

Inverters shut down to protect themselves when too hot.

❌ Causes:

• inverter in small hot room

• poor ventilation

• blocked air vents

• high load for long hours

✔ Fix:

• move inverter to well-ventilated area

• reduce load

• clean heat vents

• replace faulty fan

Overheating = automatic tripping.

⭐ 9️⃣ Weak or Faulty AC Breakers / Fuses

If breakers are:

• too small

• weak

• old

• faulty

They will trip under load.

✔ Fix:

• replace upgraded breakers

• ensure correct rating

• check wiring terminal tightness

⭐ 🔟 Generator or PHCN Voltage Issues

If PHCN or generator voltage:

• too high

• too low

• unstable

The inverter will trip immediately.

✔ Fix:

• install voltage stabilizer

• correct wiring

• switch to ECO/Grid mode

• use proper surge protection

Many cheap generators produce dirty voltage that triggers tripping.

⭐ 11️⃣ Damaged MOSFETs, Relays, or Internal Parts

If internal components are damaged:

• inverter may trip under even small load

• may trip randomly

• may show blinking lights

✔ Fix:

Solarzone repairs:
✔ relays
✔ MOSFETs
✔ capacitors
✔ transformers
✔ control boards

⭐ 12️⃣ Wrong Solar Panel Wiring

Incorrect series/parallel wiring causes:
❌ input overload
❌ low voltage
❌ MPPT protection tripping

✔ Fix:

Have Solarzone inspect and correct your wiring.

⭐ When to Call Solarzone

Call Solarzone immediately if:
✔ inverter trips under small load
✔ trips when AC comes on
✔ trips when fridge starts
✔ trips during PHCN/generator changeover
✔ trips with no load connected
✔ trips after panel upgrade
✔ trips randomly

We offer:
⭐ inverter repair
⭐ battery testing
⭐ wiring correction
⭐ socket & load inspection
⭐ MPPT replacement
⭐ inverter replacement
⭐ backup increase solutions

🏁 Final Thoughts

Your inverter trips frequently because of:
✔ overload
✔ weak batteries
✔ wiring issues
✔ overheating
✔ low voltage
✔ faulty MPPT
✔ internal inverter damage

The good news?
Most inverter tripping problems can be solved within hours.

Let Solarzone Nigeria diagnose and fix your inverter issues professionally.

💥 Call to Action

⚡ Is your inverter tripping? Let Solarzone fix it today.
📞 Call/WhatsApp: 09091394722