LG Inverter Board Failure
If your LG microwave runs, lights up and turns but does not heat, we test the inverter board and the magnetron. A failed inverter board is often caused by a power surge. Replacing the board usually restores full heating.

Independent specialists for LG NeoChef, Smart Inverter, grill and charcoal convection microwaves.
Fill out this form and our technician will reach you within 30 minutes.
Most LG microwaves in Dubai use Smart Inverter technology. Instead of a heavy transformer, an inverter board powers the magnetron and allows true low-power cooking. That board is the most common reason an LG microwave stops heating.
If your LG microwave runs, lights up and turns but does not heat, we test the inverter board and the magnetron. A failed inverter board is often caused by a power surge. Replacing the board usually restores full heating.
LG charcoal convection models use a charcoal lighting heater for grilling. If grilling stops but microwave works, the heater or its thermostat has failed.
LG NeoChef microwaves have an EasyClean coated interior. If the coating chips, bare metal can cause arcing. Sparks from one spot on the wall, rather than from the waveguide cover, usually mean damaged coating. Small chips can be repaired with microwave-safe cavity paint; large damage may not be worth repairing.
Our LG process:
What we fix most:
On inverter models, the inverter board is the usual cause, followed by the magnetron.
Yes. See LG appliance repair.
The interior coating is chipped or the waveguide cover is damaged. We inspect both.
It costs more than a fuse or switch but usually far less than a new NeoChef. We quote before any work.
Usually about an hour.
Door switches, a blown fuse or the control board. We test each.
No. We are an independent repair company specializing in LG appliances. If your LG microwave is under manufacturer warranty, contact the official LG service center first. For out-of-warranty repairs, we offer same-day visits across Dubai.
Book a technician today. Same-day visits across Dubai, with an itemized quote before any work starts.