Napoleon/Timberwolf Vacuum Switch- Metal- Replaces W660-0056 <i style="color:white;font-size:10px;">#GRA4XB70#</i>

Replacement Metal Vacuum/Hopper Pressure Switch for Napoleon/Timberwolf pellet and multi-fuel stoves. Non OEM. OEM switch is plastic. This switch is longer lasting metal. Replaces part # W660-0056. Negative pressure hookup. 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. Fits ALL Napoleon/Timberwolf pellet stoves including: Napoleon Pellet Stoves: NPS40 NPI40 NPS45 NPI45 Timberwolf Pellet Stoves: TPS35 TPI35 Pressure adjustment range from 0.12 to 5.0 WC should be set to approx .15 for most pellet stoves. 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