Whitfield/Lennox Vacuum Switch- Metal- Replaces 12145903 / 16050001 / 17150075

Replacement Vacuum Switch/Air Pressure Switch for ALL Whitfield Lennox pellet stoves. Non OEM. Replaces part #s 12145903, 16050001, and 17150075. Note: The mounting may differ for the switch that comes with your stove. You may have to drill new holes to mount this vacuum switch. Positive pressure hookup.

Whitfield Pellet Stoves:

Advantage I - (WP2)
Advantage II-T - (WP2)
Advantage III - (WP2)
Advantage II-T Classic - (WP2)
Quest
Quest Plus FS - (WP4)
Advantage Plus - WP7
Quest Plus Insert - WP4
Optima 2 - AO2
Optima 3 - AO3
Profile 20 - P9
Profile 30 - P10
Prodigy I (WP3)
Prodigy II (WP3)
Renaissance
Cascade (WP5)
Legend
Explorer
Frontiersman

Traditions Pellet Stoves:

T300P (P11)
T301P (P11)
T305P (P11)
T308P (P11)

Lennox Pellet Stoves:

Montage 32FS
Bella

Pressure adjustment range from 0.12 to 5.0 WC should be set to .15 for most pellet stoves so use the lowest setting on this switch.

The vacuum switch is a safety switch that shuts the pellet stove down if the combustion (Exhaust) blower fails. If your pellet stove starts up then stops feeding pellets after the start cycle is over, then the vacuum switch is bad or the vacuum line is clogged with ash. Also, if the auger motor does not turn you may have a bad vacuum switch.

Check the mounting of your old switch. This is direct fit for Pelpro and Breckwell pellet stoves. It will work on all other models with mounting adjustments.

Most newer stoves use the open terminal and common terminal for the electrical connectors and negative vacuum port. This means the exhaust fan is after the burn pot and connects to the venting and the switch is open until the negative pressure is applied.

Negative Pressure Hookup

Clip wires to farthest terminals from knob. Connect hose to low port. For the following pellet stoves.