Model reference
Sharp R-21LTF
Microwave
1 document1 error code4 service modes
Available documentation
Service Manual
- Service Manual - Light Duty Commercial Microwave Oven44 pg
MyPros+ Max
Diagnose your Sharp R-21LTF.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
Start diagnosing
$29/month · Cancel anytime · Or $9.95 3-day pass
Error codes (1)
CodeMeaning
EE9Maximum heating time is exceeded.Service modes (4)
- Express defrost constant check["Press CHECK","Press EXPRESS DEFROST","Values for A, B, and power level for each stage are…
- Express defrost constant programming["With door closed, press SET","Press SET again within 2 seconds","Press START","Press EXPRESS…
- Service count check/clear mode["With door closed, press CHECK","Press CHECK again","Press SIGNAL","Press SIGNAL","Press DOUBLE…
- Service count clear (cancel all counters)["With door closed, press SET","Press SET again within 2.0 seconds","Press DOUBLE QUANTITY","Press…
Full entry steps, exit procedures, and test sequences are available in Max.
Related Sharp microwave models
78,000+ service manuals · 160,000+ error codes · 55+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass