Water CoolersCold and Room-Temp
Waterways SOSB210ESNS Water Cooler Manual
Setup, everyday use, maintenance and troubleshooting for the cold-and-room-temperature conversion-type water cooler, with verified specifications.
- DispensingCold and Room-Temp
- Water sourceConversion-type
- Energy use0.16 kWh/day
- Est. yearly cost$9.93
About the Waterways SOSB210ESNS
The Waterways SOSB210ESNS is a cold-and-room-temperature conversion-type water cooler certified under the ENERGY STAR program. It draws water from either a bottle or a plumbed line, depending on how it is set up.
It dispenses cold and room-temperature water (ENERGY STAR calls room-temperature water "cook" water). Certification testing recorded cold water at about 45 °F (7 °C). Water is chilled in internal storage reservoirs, so a supply is ready on demand.
Rated on-mode energy use is 0.16 kWh per day — about 58 kWh a year.
Specifications
| Brand | Waterways |
|---|---|
| Model number | SOSB210ESNS |
| Dispensing | Cold and Room-Temp |
| ENERGY STAR product type | Cook and Cold |
| Water source | Conversion-type |
| Water conditioning | Conditioned Storage |
| Capacity class | High Capacity |
| Cold water temperature | 45 °F |
| On-mode energy use | 0.16 kWh/day |
| Refrigerant | R-134a (GWP 1430) |
Safety information
- Plug the cooler into a grounded three-prong outlet. Do not use an extension cord or adapter, and keep the cord and plug away from spilled water.
- Unplug the cooler before cleaning, sanitizing, moving it or changing filters.
- Use the cooler indoors only, upright on a level floor, away from direct sunlight and heat sources.
Installation and first-time setup
- Choose the location
Place the cooler on a level, solid floor near a grounded outlet, out of direct sunlight (which encourages algae growth) and away from heaters. Leave a few inches of space behind and beside the cabinet so the condenser can release heat.
- Let it stand
If the cooler was transported on its side, stand it upright and wait before plugging it in so the compressor oil can settle — check the manual for the exact time, which can be up to 24 hours.
- Clean before first use
Wipe the reservoir area and taps, then flush the system as the manual directs by dispensing and discarding water from each tap.
- Set up the water source
As a conversion-type cooler, it can be configured for a bottle or a plumbed supply. Follow the manual for the configuration you are using, including installing any conversion kit, filters and supply line, and check for leaks.
- Power on
Plug in the cooler and switch on the cooling switch if your model has them. Allow time for the first cool-down before drawing water.
Using your water cooler
Dispensing water
- Cold tap: chilled water, about 45 °F in certification testing. After heavy use, give the reservoir a little time to recover.
- Room-temperature tap: unchilled water for taking medication, drinking without a chill, or cooking.
- Place cups on the drip tray and avoid touching tap nozzles with the cup rim or your hands.
Changing and storing bottles
Replace the bottle when it is empty; a little water always remains in the reservoir. Store spare bottles indoors, out of sunlight and away from cleaning products, gasoline or paint — plastic bottles can absorb odors. Wipe the bottle neck before each change.
Saving energy
- Keep the condenser coils at the back free of dust and leave space around the cabinet for airflow.
- Avoid placing the cooler in direct sun or next to heat-producing equipment.
Care and maintenance
| When | What to do |
|---|---|
| Weekly | Empty and wash the drip tray; wipe the taps and cabinet with a damp cloth. |
| Every 3 months | Unplug the cooler and clean and sanitize the reservoirs and water path with a food-safe sanitizer as the manual directs, then rinse thoroughly by dispensing several quarts from each tap. |
| Every 6 months | Unplug and vacuum or brush dust from the condenser coils at the back. |
| Before a long absence | Unplug the cooler, drain the reservoirs as the manual describes and leave the unit dry. |
Troubleshooting
Most water cooler problems come down to power, the water supply or cleaning. Try the checks below first, and consult your manufacturer's manual for model-specific indicators.
| Problem | Possible cause | What to try |
|---|---|---|
| Water is not cold | Cooling switch off or unplugged; recently installed; heavy use; blocked airflow or hot room. | Check the plug and switch, allow time to recover after heavy use, and clear space around the coils. |
| No water or slow flow | Empty bottle; air lock in the reservoir. | Replace the bottle; dispense from the cold tap to release trapped air. |
| Leaking | Probe not sealed; drip tray full; loose internal fitting. | Unplug, empty the drip tray and tighten fittings with the supply valve closed. Call for service if water collects under the cabinet. |
| Odd taste or odor | Cooler due for sanitizing; bottle stored near chemicals or in sunlight. | Sanitize the cooler and store bottles properly. |
| Humming, clicking or gurgling | Normal compressor and fan sounds; air entering the bottle as water is drawn. | No action needed. Loud rattling usually means the cooler is not level or is touching the wall. |
Energy use and running costs
The Waterways SOSB210ESNS is rated at 0.16 kWh per day in on mode under the ENERGY STAR test method. Over a full year of continuous operation that is about 58 kWh, or roughly $9.93 per year at $0.17 per kWh ($0.83 a month).
Without a hot reservoir to maintain, this cooler's energy goes almost entirely to chilling water, which keeps running costs low. Clean coils and good airflow keep it that way.
Frequently asked questions
How much electricity does the Waterways SOSB210ESNS use?
It is rated at 0.16 kWh per day, about 58 kWh a year — roughly $9.93 a year at $0.17/kWh.
How cold is the water from the Waterways SOSB210ESNS?
Certification testing recorded cold water at about 45 °F (7 °C).
Does the Waterways SOSB210ESNS dispense hot water?
No. It dispenses cold and room-temperature water only.
Is the Waterways SOSB210ESNS top-loading, bottom-loading or plumbed?
It is listed as a conversion-type cooler, which can be set up for bottled water or a plumbed supply.
What refrigerant does the Waterways SOSB210ESNS use?
The certification record lists R-134a (GWP 1430).
Is the Waterways SOSB210ESNS ENERGY STAR certified?
Yes. It appears on the ENERGY STAR certified water coolers list, with a certification date of May 2022.
Sources and disclaimer
Specifications on this page come from the ENERGY STAR certified water coolers dataset published by the U.S. Environmental Protection Agency (record certified May 29, 2022), retrieved October 7, 2026.
The setup, operating, maintenance and troubleshooting guidance is written by ManualHarbor's editors for this specific product type and configuration. It is an independent guide — not a reproduction of the manufacturer's manual — and ManualHarbor is not affiliated with Waterways. Always follow the safety instructions, installation requirements and warranty terms supplied with your unit, and contact Waterways or an authorized service provider for warranty repairs and replacement parts.
Running-cost figures use assumed U.S. average utility prices and are estimates for comparison only. See our editorial methodology for details.
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