Bunn Coffee Maker Leaking: The Tank Is Always Full
Bunn machines hold a tank of hot water permanently, which is why they brew in three minutes and why a leak here behaves differently from any other brewer.
Bunn repair guides, error codes & parts
Commercial-style drip brewers with a heated reservoir that stays full — which is exactly why they scale faster than anything else on this site.
Bunn problems
Bunn replacement parts
Check the fitment chart on each part page against your model number before ordering.
| Part | OEM # | Size | Typical | Details |
|---|---|---|---|---|
| Bunn Spray Head Replacement: 6-Hole, 7-Hole and Why Yours Is Blocked | 40670.0001 (6-hole black) · 40670.0005 (7-hole) · 01082.0000 (6-hole stainless) | Screws into the underside of the brew head | $9-16 | Fitment |
| Bunn Carafe Replacement: Decanter Codes and the Lid Trap | 42400.0106 (12-cup commercial glass), 10917.0001 (6100 Easy Pour) | 12-cup commercial: approx 64 oz | $25-63 | Fitment |