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Video & Articles: Appliance & Equipment RepairFrigidaire Microwave Oven Transformer Replacement 5304519336 
Frigidaire Microwave Oven Transformer Replacement 5304519336
Skill Level
Total Parts Cost
$299.03Estimated Savings
$112.5005:46
- Description
This video provides step-by-step repair instructions for replacing the transformer on a Frigidaire microwave oven (Model FPMO227NUFA). The most common reason for replacing this part is if the microwave is not working at all.
All of the information for this video is applicable to the following brands:
Frigidaire
All of the information for this video is applicable to the following brands:
Frigidaire
Step By Step Instructions
1
Frigidaire Microwave Oven - FPMO227NUFA
2
Frigidaire Microwave Oven Transformer Replacement
3
Tools needed: T-15 tamper-proof Torx bit, Phillips-head screwdriver, needle-nose pliers
4
Shock
5
Because of the high voltage and high current used by microwave ovens, be aware that repairing this appliance poses a substantial risk for injury or death if precautions are not taken.
6
You should always unplug the microwave before you attempt any disassembly.
7
Since high voltage capacitors used in microwaves may retain a charge even after the microwave has been unplugged, we recommend that only experienced professionals access and replace internal components.
8
Unthread the six rear screws securing the cover using the T-15 tamper-proof Torx bit.
9
Unthread the screw on the right side of the cover as well.
10
Sharp
11
Pull the rear sides of the cover out then lift the cover up and pull back to fully remove.
12
Shock
13
You should release the potentially stored electrical charge in the capacitor to avoid injury.
14
You can do this by placing needle-nose pliers with an insulated handle across each set of terminals.
15
Note the orientation of the primary supply voltage wires attached to the transformer, then disconnect them.
16
Note the orientation of the secondary high voltage wires connected to the magnetron and capacitor? then disconnect them.
17
Fragile
18
Remove the glass tray from the microwave.
19
Heavy
20
Now tip the microwave on its left side.
21
Unthread the four mounting screws securing the transformer to the base using the Phillips-head screwdriver ? note that the transformer is surprisingly heavy.
22
With the screws unthreaded, carefully lift out the old component.
23
To install the new tranformer, align it on the base, then thread and tighten the four mounting screws to secure.
24
Return the microwave to its upright position.
25
Connect the secondary high voltage wires to the magnetron terminals and capacitor terminals.
26
Connect the primary supply voltage wires to the terminals on the transformer.
27
Reinstall the microwave oven cover by first aligning the top edge then the sides.
28
Thread and tighten the seven screws to secure.
29
Realign the glass tray on the turntable coupler.
30
Plug the power cord back in and the microwave oven should be ready for use.
Description
This video provides step-by-step repair instructions for replacing the transformer on a Frigidaire microwave oven (Model FPMO227NUFA). The most common reason for replacing this part is if the microwave is not working at all.
All of the information for this video is applicable to the following brands:
Frigidaire
All of the information for this video is applicable to the following brands:
Frigidaire
Step-By-Step Instructions
1
Frigidaire Microwave Oven - FPMO227NUFA
2
Frigidaire Microwave Oven Transformer Replacement
3
Tools needed: T-15 tamper-proof Torx bit, Phillips-head screwdriver, needle-nose pliers
4
Shock
5
Because of the high voltage and high current used by microwave ovens, be aware that repairing this appliance poses a substantial risk for injury or death if precautions are not taken.
6
You should always unplug the microwave before you attempt any disassembly.
7
Since high voltage capacitors used in microwaves may retain a charge even after the microwave has been unplugged, we recommend that only experienced professionals access and replace internal components.
8
Unthread the six rear screws securing the cover using the T-15 tamper-proof Torx bit.
9
Unthread the screw on the right side of the cover as well.
10
Sharp
11
Pull the rear sides of the cover out then lift the cover up and pull back to fully remove.
12
Shock
13
You should release the potentially stored electrical charge in the capacitor to avoid injury.
14
You can do this by placing needle-nose pliers with an insulated handle across each set of terminals.
15
Note the orientation of the primary supply voltage wires attached to the transformer, then disconnect them.
16
Note the orientation of the secondary high voltage wires connected to the magnetron and capacitor? then disconnect them.
17
Fragile
18
Remove the glass tray from the microwave.
19
Heavy
20
Now tip the microwave on its left side.
21
Unthread the four mounting screws securing the transformer to the base using the Phillips-head screwdriver ? note that the transformer is surprisingly heavy.
22
With the screws unthreaded, carefully lift out the old component.
23
To install the new tranformer, align it on the base, then thread and tighten the four mounting screws to secure.
24
Return the microwave to its upright position.
25
Connect the secondary high voltage wires to the magnetron terminals and capacitor terminals.
26
Connect the primary supply voltage wires to the terminals on the transformer.
27
Reinstall the microwave oven cover by first aligning the top edge then the sides.
28
Thread and tighten the seven screws to secure.
29
Realign the glass tray on the turntable coupler.
30
Plug the power cord back in and the microwave oven should be ready for use.
Applicable Product Model
Parts Needed
Transformer
$299.03
Total$0.00
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