Product Information
LWCO Probe
Compatible with 12 equipment models
- SSB-1000 SSB-1000 Boiler
- SSB-1000TL SSB-1000TL Boiler
- SSB-1000TL-V2 SSB 1000TL V2 Boiler
- SSB-1000-V2 SSB 1000 V2 Boiler
- SSB-120 SSB-120 Boiler
- SSB-160 SSB-160 Boiler
- SSB-255 SSB-255 Boiler
- SSB-399 SSB-399 Boiler
- SSB-512 SSB-512 Boiler
- SSB-800 SSB-800 Boiler
- SSB-800-V2 SSB 800 V2 Boiler
- SSB-85 SSB-85 Boiler
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Fast Shipping
In-stock orders ship within 1 business day to anywhere in Canada.
Code-Compliant
All products meet Canadian HVAC and gas code standards.
Wholesale Pricing
Trade pricing for licensed contractors. 40+ years in the industry.
The LWCO Probe (Bosch part 7738004927) is a low-water cut-off sensing probe intended for Bosch hydronic and boiler equipment; it monitors internal water level and provides a switching input to LWCO or control modules to help prevent dry-fire and safeguard heat exchangers. Exact Bosch North America technical documentation for part 7738004927 was not available on official Bosch Home Comfort or Bosch Climate product sites, so this description is written from the part name and category.
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