Common issues with combination ice makers include:
1. **Ice Production Issues**: 
   - **Cause**: Clogged water filters, low water pressure, or faulty water inlet valves.
   - **Resolution**: Replace or clean water filters, check and adjust water pressure, and inspect or replace the water inlet valve.
2. **Ice Quality Problems**:
   - **Cause**: Dirty machine, old water, or mineral deposits.
   - **Resolution**: Regularly clean the ice maker, use fresh water, and descale the machine to remove mineral buildup.
3. **Ice Jams**:
   - **Cause**: Ice cubes sticking together or improper storage.
   - **Resolution**: Ensure proper storage conditions, regularly break up ice clumps, and maintain the correct temperature settings.
4. **Noisy Operation**:
   - **Cause**: Loose parts, fan issues, or compressor problems.
   - **Resolution**: Tighten any loose components, clean or replace the fan, and inspect the compressor for faults.
5. **Water Leaks**:
   - **Cause**: Faulty seals, cracked hoses, or improper installation.
   - **Resolution**: Replace seals, repair or replace hoses, and ensure correct installation.
6. **Electrical Issues**:
   - **Cause**: Faulty wiring or control board malfunctions.
   - **Resolution**: Inspect and repair wiring, and replace the control board if necessary.
7. **Temperature Fluctuations**:
   - **Cause**: Thermostat issues or poor ventilation.
   - **Resolution**: Check and replace the thermostat, and ensure proper ventilation around the unit.
Regular maintenance, such as cleaning, checking connections, and replacing worn parts, can prevent many of these issues. Always refer to the manufacturer's manual for specific troubleshooting and maintenance guidelines.