9
Moderate
Keurig · Coffee Makers
Internal temperature or heating subsystem fault.
Quick Answer
Error code 9 on your Keurig Coffee Makers means: Internal temperature or heating subsystem fault.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Unplug brewer for 10 minutes and restart.
2
Ensure brewer is connected directly to wall outlet.
3
Run descaling process fully.
4
Check for overheating signs and proper ventilation.
5
Service unit if repeated thermal errors occur.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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