Microwave Ovens

Galanz Microwave Not Heating?- 5 Primary Reasons and 8 Easy Solutions!

Galanz Microwave Not Heating
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Cooking, heating, and reheating your food with a simple push of a button is an absolute blessing in keeping up with a hectic lifestyle.

Microwaves are indeed one of the best inventions to date.

And when we talk about microwaves, “Galanz” has to be one of the most popular brands.

Now you are a Galanz microwave user, and it was working fine till it stopped heating and finding a fix; you google “Why is my Galanz Microwave not heating?”

There might be a power connection problem or a low voltage issue.

It also happens due to defective door switches, blown fuse, defective diode, faulty magnetron and defective high voltage capacitor.

There are many reasons why your Galanz Microwave not heating.

Keep reading this because you are just in the right direction.

Reasons Why Your Galanz Microwave Not Heating

Defective door switches

Most microwaves have 3-4 door switches that only work when closed.

This safety mechanism prevents hazardous radiation from exiting the microwave.

A malfunctioning door switch might restrict the oven from heating, even with the door closed.

Door switches can fail due to wear and tear or if they’re not correctly fastened.

The prongs on the door should activate the switches once the door is closed, which is how most door switches work.

If a door switch has shifted or the prongs might be misaligned, preventing the door switch from being activated leads to the Galanz microwave not heating.

Blown Fuse

A microwave involves many fuses, including a thermal fuse, a cavity fuse, and a Thermo protector.

The fuses are meant to keep you safe by stopping power to the microwave when Galanz Microwave becomes too hot or if there is a power spike.

When a fuse blows, it cannot be restored and must be replaced.

Use a multimeter to examine the fuses and determine whether the blown fuse is why your Galanz microwave not heating.

You can find the fuses in various locations depending on the type of Galanz microwave.

Refer to the microwave’s wiring diagram or instructions to find a fuse.

Defective Diode

The diode in the microwave transforms alternating current to direct current, doubling the voltage and powering the Magnetron, which warms the food.

If the diode fails, the Magnetron does not receive enough voltage, resulting in Galanz Microwave not heating.

You can check if you have a defective diode using a 9-volt battery and a voltmeter and see if the diode is still operating.

It can be examined using a voltmeter and a 9-volt battery to see if the diode is still running.

The diode should have continuity only in one direction.

If there isn’t any continuity, or if there is continuity in both directions, it means the diode has failed and must be replaced.

Defective Magnetron

If you don’t know what Magnetron is, it is responsible for generating microwave frequencies to heat your food.

If the Magnetron is defective or burned out, it won’t heat the food properly.

The other sign that the magneton is defective is when the typical humming of the microwave increases.

Defective High-Voltage Capacitor

The diode and the high-voltage capacitor operate together to convert alternating electricity to direct the current and double the voltage.

If the capacitor fails, the microwave cannot obtain the voltage required to cook and heat food.

This might be the reason why your Galanz Microwave not heating.

To detect if the high-voltage capacitor had failed, utilize a VOM meter with capacitance testing capability.

Fixes for Galanz Microwave Not Heating

Fix The Defective Diode If Your Galanz Microwave is Not Heating

If your Galanze microwave not heating, there is a high chance that the high voltage diode/rectifier is has a problem.

The high voltage diode is placed close to the Magnetron and the high voltage capacity, so you must remove the cabinet.

Ensure you turn off and discharge the high voltage capacitor to avoid accidents such as electric shock.

Later you can test the continuity to heck the diode using a multimeter.

Diodes are polarity sensitive, so you should notice low resistance when the meter leads are pointed in one way and higher resistance when the meter leads are indicated in the other direction.

Most multimeters will feature a diode or rectifier set.

It must be replaced if the high voltage diode exhibits low resistance in both directions or lacks continuity.

If the high voltage diode tests pass, you must establish whether power is being delivered to the circuit.

This is a high-voltage circuit that a certified technician should only test.

Fix The Door Switch

When an interlock switch fails, the fan motor or stirrer motor may continue to run; however, the Magnetron wouldn’t.

The interlock switches are situated within the cabinet and are triggered by door hooks or latches.

Remove the cabinet and unplug the unit.

You can see wires connected to the common terminals and normally open on the interlock switches.

Using a multimeter, examine the switches for continuity.

You can see continuity between these terminals when you press the actuator button.

The switch must be changed if there isn’t any continuity.

You should also check and adjust the door hooks to ensure they properly connect to the switch actuator once the door is closed.

Fix The Magnetron

If the Magnetron fails, the machine might blow a fuse, or all other functions may continue to work correctly.

You must remove the cabinet to get access to the Magnetron.

To avoid an electrical shock, cut the power and discharge the high voltage capacitor.

You can find the Magnetron and separate the two connecting wires.

Connecting the multimeter leads to the magnetron outputs and continuity test.

The resistance between these terminals should be as low as 2-3 ohms.

If there isn’t any continuity, the Magnetron must be changed.

Inspect the continuity between the terminals and the Magnetron’s grounded outer case.

If there is any connection between any terminal and the ground, the Magnetron must be replaced.

Live voltage testing may be necessary if the continuity tests disclose no faults.

It should be sent to a trained individual.

Fix The Broken Fuse

To find the fuse, look at the manual of the microwave.

The primary fuse is often a two-inch-long, narrow rectangle made of ceramic or glass with a filament inside.

Checking the fuse and changing it takes the microwave away from the power source.

Disassemble the access panel.

Depending on the model, you may have to unbolt the control panel and microwave frame.

Remove the fuse from the microwave by unscrewing it or taking it out of its clip.

Use a multimeter to check if the fuse is still on.

Suppose the fuse is broken, put in a new one that resembles the one you took out.

Put the microwave back together and turn on the power.

Put a cup of water in the microwave for 30 seconds to test the new fuse.

If the fuse blows again, it means that it was the wrong type, it may have been installed wrong, or there is a problem with the electrical system in the house.

Fix The Defective Magnetron

The Magnetron may be tested for continuity using a multimeter.

The multimeter values must be below 1 ohm for the Magnetron to function properly.

If the Magnetron is damaged, it must be replaced to fix the Galanz Microwave not heating.

First, cut off the power to the microwave to check and access the Magnetron.

Next, remove your Galanz microwave cabinet.

Then discharge the capacitor and take the Magnetron out of the capacitor.

Check the continuity using a multimeter, and finally, if you see it’s defective, replace it with a new one.

Fix The High Voltage Transformer

A faulty transformer may arc and emit a burning smell.

Again, the transformer contains three windings you may check using a multimeter.

Check the high-voltage transformer by Unplugging the microwave.

Next, Disassemble the microwave. Don’t forget to discharge the capacitor.

Then Remove the microwave’s transformer.

Use a Multimeter to check the transformer. Finally, Replace the transformer.

Your Main Control Board Might Be Malfunctioning

If the components mentioned above are operating and your Galanz microwave is still not heating, the main control board might be faulty.

Visually inspect the control board for burning or short-circuiting.

You must replace the damaged control board.

Again, disconnect the power to the microwave and remove the cabinet.

Again, remove the control board and check for any signs of burning, arching, or broken connection.

Some other reasons why your Galanz Microwave is not heating

  • Check your power connection. Your microwave does not work if it has poor power connectivity.
  • Check if the power-on voltage is relatively low. Your microwave won’t heat up if the voltage is below 180 volts.


We have discussed all the possible problems and fixes for your Galanz Microwave, not heating.

You only need a multimeter and a few screwdrivers to access and fix the problem.

Hope this article got you all covered.






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