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Both my bilge blowers melted

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Old 07-26-2016, 12:04 AM
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+1 on the dirt dobber nest. Lost 2 blowers at once due to those little bastards building their nests on the fan blades.
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Old 07-26-2016, 07:43 AM
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Its probably that ECM reflash that failed and shorted out the blower sensor's, post your serial # of the engine so we can help
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Old 07-28-2016, 09:08 AM
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Originally Posted by flatlanderbill View Post
Were they the atwood in line blowers? If so, i have had a couple of those melt down for no apparent reason. Attributed it to time in a wet enviroment. The replaced them with a jabsco unit.
Yes, they were. Not in a wet environment.
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The jist

Fuse protected ? What size fuse ?

Dirt dobbers like to nest in them and or in the hose ducks

restrictions in the air ducts or vents and or again nests of some sort built in them or ducking from whatever ie animals - dirt dobbers, rats I have even stuck in them.

plastic bags or whatever gets sucked up into them or the hose ducking - check for any restrictions.

next when blowers turn on, the end vent hose portion can get sucked up against anything - the bilge floor, a stringer, a bulkhead or whatever creating a total restriction of air movement thru the blower inwhich causes them to run very hot. very common - the reasons installed vent hoses improperly or to long or end of vent hose not sucured in place that gets sucked up against whatever when the blowers are turned on,

or the vent hoses collapsed

Most of the time its installer problem that caused this for brand new installs that fail in short order.

or a wiring problem or fuse problem ie voltage problem of some sort as well
Bup, I'll look for obstructions when I pull them out. My new units should be here today and I'll pull the old ones tomorrow. They are protected by a breaker, but it never tripped. Not sure what the deal is there.

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I've seen them mounted in a spot (bottom of slight U or L) where water collects in them. I'll know it first hand when someone turns their blower on and you hear a slight gurgle of water.
These were mounted vertically.
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+1 on the dirt dobber nest. Lost 2 blowers at once due to those little bastards building their nests on the fan blades.
That is a very distinct possibility.
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Originally Posted by 33outlawsst View Post
Its probably that ECM reflash that failed and shorted out the blower sensor's, post your serial # of the engine so we can help
Damnit, Bowman changed my vent motors' redline and I tossed a rod.
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Old 07-28-2016, 10:00 AM
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LMAO, I just sent him a ecm to reflash, Im having the blower rev limiter increased to 10k revs and the protect interrupt installed .......good luck with the M-dobbers

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Old 07-28-2016, 10:21 AM
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Originally Posted by 33outlawsst View Post
LMAO, I just sent him a ecm to reflash, Im having the blower rev limiter increased to 10k revs and the protect interrupt installed .......good luck with the M-dobbers
FYI: make sure to get the water cooled blower housings if you do this !
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Old 07-28-2016, 10:29 AM
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FYI: make sure to get the water cooled blower housings if you do this !
^^^^^^^ thinks of EVERYTHING
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Old 08-12-2016, 09:38 AM
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Finally got back to the lake to replace them, here is one that I pulled out.

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Old 08-12-2016, 09:42 AM
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Wow !
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Old 08-12-2016, 09:59 AM
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You'd almost have to disassemble the motor, look at the brushes, and look for missing shellac/black marks on the coils to figure out the failure. Most of the DC motors failures I've seen were crud/sticking brushes (R/C motors, drills, etc).

I say toss a set of 35k rpm Dyson brushless motors in those bilge blowers with billet fan blades with lithium ion batteries. Pimp.
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Old 08-12-2016, 10:22 AM
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Dyson? I was thinking replace them with some 22 year old skanks, it being a Fountain and all.
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