Last verified against the primary source on Sep 20, 2026.
Popular nugget-ice head with active OEM parts support (water level sensor ~$37, bin-level photo-eye sensor set ~$255); Scotsman's own service manual requires the photo-eyes and water probes to be manually cleaned twice a year and flags scale/blockage on either as a direct cause of overfill, no-ice, or bin-code faults, so confirm the ice level shuts off properly and the reservoir probes are clean before buying used.
Confidence 55%Comparable set not yet verified
As of Not yet verifiedWhat can make the cheap machine expensive?
| Component | Severity | Documented repair cost |
|---|---|---|
| Bin-level photo-eye sensor set | medium | $255–$255 |
| Water level sensor | low | $37–$37 |
OEM bin level control/sensor set (Scotsman A37708-021, set of 2) lists at $254.72 on Parts Town. Per Scotsman's own service manual, "The control that senses bin full and empty is a photo-electric eye, therefore it must be kept clean so it can 'see'. At least twice a year, remove the ice level sensors from the base of the ice chute, and wipe the inside clean." The manual's diagnostic table also lists a blocked or scaled photo-eye in the chute as a cause of the unit overfilling or shutting down on a bin-code fault.
$255–$255OEM water level sensor (Scotsman A40666-001, two-probe conductivity type) lists at $36.71 on Parts Town. Scotsman's service manual states: "The ice machine senses water by probe located in the water reservoir. At least twice a year, the probes should be wiped clean of mineral build-up," and separately describes it as a "Two probe conductivity sensor. When water touches it the Water Present light will be ON." Mineral scale on the probes is the documented failure mode to check for during inspection.
$37–$37My Price: $ 36.71 ... Manufacturer #: A40666-001 ... Parts Town #: SCA40666-001
Common questions
What fails on the Scotsman NS0922?
The most cited concerns in our evidence record: Bin-level photo-eye sensor set, Water level sensor. See the risk breakdown above for details and sources.
Key parts and observed prices
| Part | Part # | Observed price | As of |
|---|---|---|---|
| Scotsman A40666-001 Water Level Sensor | Parts Town #SCA40666-001, Mfr #A40666-001 | $36.71 | 2026-09-20 |
| Scotsman A37708-021 Bin Level Control/Sensors, Set of 2 | Parts Town #SCA37708-021, Mfr #A37708-021 | $254.72 | 2026-09-20 |
Prices are point-in-time observations from the linked seller pages, not quotes. Availability and pricing change.
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From the research record
- REPAIR PART (2026-09-20): Scotsman A40666-001 Water Level Sensor (Parts Town #SCA40666-001, Mfr #A40666-001): $36.71 https://www.partstown.com/p/scotsman/sca40666-001
- REPAIR PART (2026-09-20): Scotsman A37708-021 Bin Level Control/Sensors, Set of 2 (Parts Town #SCA37708-021, Mfr #A37708-021): $254.72 https://www.partstown.com/p/scotsman/sca37708-021
Sources
- Scotsman A40666-001 Water Level Sensor | Parts Townparts-retailer · verified-primary
- Scotsman A37708-021 Bin Level Control/Sensors, Set of 2 | Parts Townparts-retailer · verified-primary
- Scotsman NH/NS/FS Series Air, Water or Remote Service Manual (covers NS0922)manual · verified-primary
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