Galaxy microwave works does not heat

The door switch is adjustable. one or more need adjusting to solve the problem

The heating up function is not working, so get it repaired or buy a new microwave.

some microwave is have PCB control if pcs is shorted some parts light bult,fan or syncronus motor is on mode we need to replace the pcb but some problem is only is micro switch,if mocro swict is rusty or corroded that the time not working the turn table,but you said every time open the door the ligth is ok,if the turn table also running during open door have problem in your pcb board that we need for replacement,but check the price of parts and make it desicion if you want to repair or buy a new one if your unit is very old.

heating elements problem

sounds like the magnatron went out

it sounds like it one of your micro-switches inside that control the power to the doors, if one of the switches is bad, it would cut the power , the panenl will light, the turn table will work, the fan will turn on , but you will not get any heat at all, micro-switches run depending onthe unit from 5-10 bucks, when you open the unit you will see the one that is bad, is usually bent or the connector might be burn or melt, good luck..!

Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

is the turntable working

The turn table and fan are connected in series with the bulb,as you have mentioned that you have replaced bulb,so please check again for any loose contact on bulb holder or bulb continuity again.

This is not safe. If the fan is not running, the magnetron will quickly overheat and be destroyed. We answered this in more depth in the other place you asked it.