H98
Café
High-Voltage System Failure
Microwave displays H98 and does not heat; turntable and light may still function.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Shorted magnetron, Failed high-voltage transformer or inverter, Blown high-voltage fuse, Shorted high-voltage diode
How to Fix / Troubleshooting
Critical safety warning: The high-voltage section of a Café microwave is extremely dangerous. Do not open the cabinet or attempt to replace internal components yourself.
User-level steps:
- Power reset: Disconnect power for 10 minutes, then restore and test with a cup of water. If H98 reappears, internal high-voltage components are likely damaged.
- Stop using the unit: Do not continue to run the microwave with an H98 error; this can cause further damage.
- Professional repair: Contact an authorized Café service provider. They will test the magnetron, high-voltage transformer or inverter, diode, and internal fuses, and replace the defective parts.
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Repair Difficulty
Professional Required
5/5
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