Installation guide
Owner’s manual
Error Codes
How to reset Bosch icemaker?
On the Bosch B21CL80SNS, the most reliable “reset” is to switch the ice maker off and back on using the Ice Maker button, then allow time for the refrigerator to reach set temperature and restart ice production. For full button and indicator details, use the B21CL80SNS owner's manual.
Quick reset steps (recommended)
- Confirm the refrigerator is connected to the water supply and the shutoff valve is fully open.
- Make sure the ice storage box is installed and locked into position.
- Press the Ice Maker button to turn the ice maker off (the Ice Maker symbol disappears).
- Wait about 30 seconds.
- Press the Ice Maker button to turn it on (the Ice Maker symbol appears).
- Give the unit time to run; it is normal to hear the pump/motor sound after about 2 hours.
If it still will not make ice
These checks fix most “no ice” complaints after a reset:
- Water supply issue: verify the supply line is not kinked and water pressure is adequate.
- Ice storage box not seated: remove and reinstall it so it locks correctly.
- Recently unused ice maker: clean the ice cube box and ice storage box, then restart.
- Temperature and door openings: frequent freezer drawer openings can slow ice production.
Common causes and what to do
| What you notice | Likely cause | What we recommend |
|---|---|---|
| Ice maker symbol is off | Ice maker is switched off | Turn it on with the Ice Maker button |
| No water entering ice maker | Water supply/pressure problem | Check valve, line kinks, and pressure |
| Ice cubes smell or first batch looks off | First-use or long idle period | Discard first 30 to 40 cubes; clean bins |
| Ice production is slow | Drawer opened often | Reduce openings; allow more time |
Why it matters
Resetting by cycling the Ice Maker button clears many temporary control glitches without disturbing other refrigerator settings. If water supply, pressure, or bin seating is the real issue, a “reset” alone will not restore ice production.
Last updated: February 2026
What is the life expectancy of a Bosch 800 series refrigerator?
Most Bosch 800 series refrigerators typically last 14 to 19 years with normal household use and basic upkeep. For your Bosch B21CL80SNS, steady temperatures, clean airflow, and quick attention to small issues are what most often determine whether you land closer to 14 years or push past it.
Typical lifespan and what affects it
A refrigerator’s life is mostly driven by compressor run time, heat removal, and door sealing. These are the biggest factors we see:
- Condenser cleanliness (dust buildup makes the compressor work harder)
- Door seal condition and door alignment (warm air leaks increase run time)
- Room temperature and ventilation clearance (tight cabinets trap heat)
- Ice maker and water system health (leaks and low water pressure create secondary problems)
- How full it’s kept (moderately full is easier to keep stable than nearly empty)
For model-specific care and operating guidance, use the B21CL80SNS owner’s manual.
Maintenance checklist that extends service life
Use this schedule as a practical baseline for Bosch bottom-mount units:
| Task | How often | Why it helps |
|---|---|---|
| Vacuum/brush condenser area | Every 6 months | Reduces compressor strain |
| Check door closing and gasket contact | Monthly | Prevents warm air infiltration |
| Confirm temps are stable (fresh food and freezer) | Monthly | Catches cooling drift early |
| Replace water filter (if equipped) | About every 6 months | Protects valves and improves flow |
If your unit has a filter, follow how to replace the water filter in a Bosch refrigerator for the correct replacement approach and flushing steps.
When “end of life” is approaching
These symptoms usually mean the refrigerator is working harder than it should and may need repair to avoid shortened lifespan:
- Compressor runs almost constantly
- Freezer temperature swings or soft ice cream
- Fresh food section warms, then recovers
- Unusual clicking, buzzing, or fan noise
- Water leaks, puddles, or slow dispenser flow
If you’re troubleshooting water supply issues, the valve-two way 12013732 is one of the key components in the water circuit on this model.
Why it matters
A refrigerator that is forced to run hot or run nonstop can wear the compressor and electronics faster. Simple airflow, sealing, and water-system maintenance is the most reliable way to reach the expected 14 to 19 year lifespan.
Last updated: February 2026
What is the biggest problem with Bosch refrigerators?
The biggest problem we see most often in Bosch refrigerators, including model B21CL80SNS, is temperature control and cooling performance (not cold enough, freezing in the fresh-food section, or uneven temperatures). These symptoms usually come from airflow restrictions, dirty condenser coils, or a fan, sensor, or control issue.
Most common “big problems” and the usual cause
- Warm refrigerator or freezer: restricted airflow, dirty coils, weak fan
- Freezing food in fresh-food section: vent blockage, airflow imbalance, sensor/control issue
- Ice maker or water dispenser trouble: low water pressure, kinked line, valve or ice maker drive issue
- Moisture or condensation: door not sealing, frequent door openings, warm room air infiltration
- Alarms or odd cycling: temperature sensing or electronic control behavior
Quick checks we recommend first (B21CL80SNS)
Start here before replacing parts; these steps solve many cooling and ice complaints.
- Verify temperature settings; allow 24 hours after changes
- Keep interior vents clear; do not pack food against the back wall
- Clean condenser coils and confirm airflow around the cabinet
- Check door alignment and gasket seal; a poor seal causes warm temps and moisture
- For ice and water: confirm the supply valve is fully open and the line is not kinked
- If water pressure is low or the ice storage box is not seated correctly, correct those items; see the B21CL80SNS owner’s manual
When it points to a part
| Symptom | What to check next | Example part on this model |
|---|---|---|
| No ice or slow ice | Water supply pressure, then inlet valve | Valve-two way 12013732 |
| Random temp swings | Sensors and electronic controls | Refrigerator electronic control board 11016442 |
Why it matters
Cooling and ice issues affect food safety and can force longer run times that increase wear on the compressor and fans. Basic airflow and water-supply checks prevent unnecessary part replacement.
Last updated: February 2026
