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Topic: Furnace not igniting? Might be Mud Dauber. (Read 641 times) previous topic - next topic

Furnace not igniting? Might be Mud Dauber.

Woke up in the middle of the night a little chilly. I heard the furnace fan running but cold air was blowing. Additionally the fan was not shutting off, not good if we were boon docking. Those fans use a lot of power to be running continually. I shut off bedroom furnace and went to plan B.

Today I pulled a mud dauber nest from the exhaust tube. It was the size of a small egg. All is well in "Mudville"
Ed and Michele
2000 U295  36'  (Build #5600)
8.3 ISC 350HP.
2012 Jeep Grand Cherokee (Toad)
2001 Lance Truck Camper (Sold)
2001 Lazy Daze (Class C). RK Floor Plan (Sold)

Re: Furnace not igniting? Might be Mud Dauber.

Reply #1 –
Pulled one out of a friend of mine's just the other day.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Furnace not igniting? Might be Mud Dauber.

Reply #2 –
They make screens for hwh & furn. I used them when in 'dauber country', worked well, even though some mfgrs don't like them.
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: Furnace not igniting? Might be Mud Dauber.

Reply #3 –
Quote from: mike leary –
They make screens for hwh & furnace.
Amazon.com: Camco Flying Insect Screen -Protects RV Furnaces From Insects...
As an Amazon Associate Foretravel Owners' Forum earns from qualifying purchases.
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Furnace not igniting? Might be Mud Dauber.

Reply #4 –
I bought some aluminum screen at Lowes and covered the entire opening on my old coach that was after I had to disassemble  the entire furnace to get to dauber nest that  was around the  bend in the intake air.  I put screen on hot water heater and furnace,  was still working fine when I sold the coach!
Chris
1999 U 320 DGFE
Build Number 5523
Chris & Elka Lang
In the field, Lonoke AR