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BUNN CWTF15 heating repairs: thermostats, elements and solenoids

Which OEM heating and control parts fit the BUNN CWTF15, with part numbers and current stock from Parts Town's model index.

Checked against: Parts Town BUNN CWTF15 parts index · Last verified: 2026-10-11

A no-heat or slow-heat CWTF15 is almost always one of five components: the hi-limit thermostat, the tank element, the fill solenoid, a switch, or the thermal cut-off harness.

OEM parts documented for the CWTF15

Diagnostic notes

  • 120V and 220V elements are different part numbers; match the voltage printed on your machine's data plate before ordering.
  • The hi-limit thermostat (29329.1000) and the thermal cut-off harness (28174.0000) protect the tank circuit; replace them as a pair if the machine tripped repeatedly.
  • Prices and stock were captured on 2026-10-11 from Parts Town's CWTF15 model index and may change.

Sources: Parts Town CWTF15 parts index; individual Parts Town part listings linked above.

Parts & consumables referenced

BUNN Warmer Element, 120V, 100W, 4 in$12.5
BUNN Tank Element Kit, 120V, 1320W$61.8
BUNN Warmer Element, 120V, 100W, 7.6 in$23.2
BUNN Hi-Limit Thermostat$12.1
BUNN Fill Solenoid Valve Kit, 120VCheck current price
BUNN Hose Clamp, Snap Type$1.9
BUNN Toggle Switch, DPST, 20 A$12.5
BUNN Tank Inlet Gasket, Silicone$0.7
BUNN Warmer Element, 220V, 100W$34.4
BUNN Tank Element, 220V, 1850W$104.7
BUNN Wiring Harness, Thermal Cut-Off, Tank Heater to Terminal Block$183.8
BUNN Warmer Assembly, Element & Plate, 120V, 200W$80.6
BUNN Tank Heater Kit, 1320W, 120V$60.8

Disclosure: outbound merchant links are informational; some may be affiliate links that earn this archive a commission. Prices and availability are recorded at the time of our last check — always verify the current price and stock at the merchant before purchasing. We do not own or control merchant inventory, and editorial picks are never chosen for commission size.

Safety: coffee equipment involves electricity, hot water, steam under pressure, and cleaning chemicals. Always unplug, cool down, and follow the manufacturer's instructions. This guide is informational and is not a substitute for the official manual or qualified service.