RV Limit Switch 31091 Enhanced Safety Auto Shutdown Furnace Heater High Temperature Limit Switch Replacement for Atwood AFS AFMD AFL Series Item Type: Limit Switch OE Number: 31091 Fitment: Replacement for Atwood Hydro Flame RV Furnace Heater Replacement for Atwood AFS Series: AFSAD12111, AFSAD12121, AFSAD12131, AFSAD12141; AFSD12111, AFSD12121, AFSD12131, AFSD12141; AFSD16111, AFSD16121, AFSD16131, AFSD16141; AFSD20111, AFSD20121, AFSD20131, AFSD20141; AFSDA12121. 2. Replacement for Atwood AFMD Series: AFMD16111, AFMD16121, AFMD16131, AFMD16141, AFMD16151; AFMD20111, AFMD20121, AFMD20131, AFMD20141, AFMD20151; AFMD25111, AFMD25121, AFMD25131, AFMD25141, AFMD25151; AFMD30111, AFMD30121, AFMD30131, AFMD30141, AFMD30151; AFMD35111, AFMD35121, AFMD35131, AFMD35141, AFMD35151. 3. Replacement for Atwood AFL Series: AFLA35211, AFLA40211, AFLA35221, AFLA40221, AFLA35231, AFLA40231; AFLD35111, AFLD40111, AFLD35121, AFLD40121, AFLD35131, AFLD40131. For DFL Series: DFLA35211, DFLA35221, DFLA35231, DFLA40211, DFLA40221, DFLA40231; DFLD35111, DFLD35121, DFLD35131, DFLD40111, DFLD40121, DFLD40131. 2. For DFMD Series: DFMD16111, DFMD16121, DFMD16131, DFMD16141, DFMD16151; DFMD20111, DFMD20121, DFMD20131, DFMD20141, DFMD20151; DFMD25111, DFMD25121, DFMD25131, DFMD25141, DFMD25151; DFMD30111, DFMD30121, DFMD30131, DFMD30141, DFMD30151; DFMD35111, DFMD35121, DFMD35131, DFMD35141, DFMD35151. 3. For DFS Series: DFSAD12111, DFSAD12121, DFSAD12131, DFSAD12141; DFSD12111, DFSD12121, DFSD12131, DFSD12141; DFSD16111, DFSD16121, DFSD16131, DFSD16141; DFSD20111, DFSD20121, DFSD20131, DFSD20141.