
Fischer Panda inverter repair
We diagnose and repair PMGi inverters used with Fischer Panda i-series generators. Bring the inverter in, ship it to our workshop in Żukowo, or book an on-site diagnosis.
What the inverter does in a Fischer Panda generator
Fischer Panda i-series generators run at variable speed. The alternator then produces voltage at a varying frequency, and the PMGi inverter converts it into stable mains power for the yacht, vehicle or facility.
This lets the generator run slower and quieter at low load — but all of the output power passes through the inverter electronics. An inverter fault means no power, even when the engine and alternator are fine.

Common symptoms
FAILURE light on
The inverter reports a fault and gives no output.
No 230 V output
The generator runs, but loads receive no power.
Shutdowns under load
Power drops out when larger loads switch on.
Overheating and fan issues
Noisy, dead or constantly running fan, thermal shutdowns.
Unstable voltage
Flickering lights, electronics resetting.
How the repair works
Whole-system diagnosis
We check the alternator, wiring, controls and the inverter itself — the fault is not always in the electronics.
Workshop repair
The inverter is removed and diagnosed on our electronics bench in Żukowo.
Load test
After repair we test the inverter with a generator before it goes back.
Replacement advice
If repair isn’t worthwhile, we help you choose a new Fischer Panda inverter.
Generator and on-board power system
On yachts a Fischer Panda generator often works alongside inverter/chargers and batteries. Fischer Panda cooperates with Victron Energy in the Marine Alliance — complete systems combine both manufacturers’ generators and power electronics.
We look at the whole installation, because the cause is often the interaction of several devices rather than one of them.
Before you call
- Generator and inverter models and serial numbers
- State of the FAILURE / OK lights and any error codes
- At what load the problem appears
- Whether the inverter is already removed or needs on-site diagnosis
Common questions
Can I ship just the inverter?
Yes. A well-packed inverter can be sent by courier to our workshop in Żukowo — call before shipping so we can discuss the symptoms.
Does the inverter always need replacing?
No. We diagnose the cause first — often the fault is in the wiring, controls or alternator rather than the inverter.
How long does a repair take?
It depends on the fault and parts availability. We give you a date after diagnosis, before starting the repair.
Can you service the generator at the same time?
Yes. We can service the generator as well to check the whole power system.
