New blower question...thanks

cls10105

One of the blower plugs do not work. Both of the motors work off the one plug any ideas on how to fix the other connection. Thanks for your help

cls10105

Where are the fuses located for the blowers 

raybo3

The blowers blow the air inside the engine room out causing a negative pressure. The breakers are at the helm. Push to reset.....

cls10105

@raybo3 ty sir

cls10105

Either one of the blowers will work with the connection with 3 wires. Any ideas is this an aftermarket change or.

cls10105

bella-vita

When u turn blower on from inside cabin it only turns on one for generator.when turned on from helm both turn on for running boat motors 

Cableguy Greg

That's a factory connection.

LaRea

@bella-vita is correct.  Connect the 3-wire plug to the blower closest to the generator.  Connect the 2-wire plug to the other blower.  

The helm switch will power both plugs.  The cabin switch will only power the 3-wire switch.  

cls10105

So any ideas on what i should try with the connection with 3 wires to get it working. What should i replace both of the switches the cabin and helm work for the one blower.

bella-vita

Do they both turn on at same time ,or do u only get one to work at a time?

cls10105

@bella-vita, only one at a time the one with wires dont work with either one of the switches 

reneechris14

Need a test light to check for gound. I don't think the switch is bad

Stodge

The blowers are usually routed through the internal fire suppression system if you have one.  If I recall, the idea was to prevent the blowers from running if the system has discharged so the halon could stay in the engine compartment and do it's job.  Might want to check and see if you have a similar set up.

LaRea

Stodge's point can't be overstated.  Blowers are just one part of a carefully designed fire safety system.  If a fire in the engine room discharges the halon system, it automatically turns off the blowers to prevent them from removing the halon.  If the blowers continue to run, they are just feeding the fire with fresh oxygen.  

Dream_Inn

LaRea said:

Stodge's point can't be overstated.  Blowers are just one part of a carefully designed fire safety system.  If a fire in the engine room discharges the halon system, it automatically turns off the blowers to prevent them from removing the halon.  If the blowers continue to run, they are just feeding the fire with fresh oxygen.  

Coming from someone that has had their halon system discharge, I agree completely!

cls10105

I do have the fire suppression thing but since one of the blowers work that wouldn't be the problem would it?

LaRea

Do you have a Fireboy light at the helm?  Is the light off or on?

cls10105

The light is actually missing 

LaRea

Well, there's your sign.  Did they also remove the halon bottle in the engine room?  

Here's a wiring schematic.

LaRea

Well, there's your sign.  Did they also remove the halon bottle in the engine room?

Here's a wiring schematic.
  

Black_Diamond

That Fireboy light missing might be your issue depending what someone did with the wiring connections. That light and the wire connections at the fire extinguisher are looped into the blower circuit. 

FWIW: I had to run a new/clean ground wire from the fire extinguisher to that light. Also had to replace the factory wire connection at the fire extinguisher (big resistance problem and major heat at the connection with the blowers on). 

cls10105

Still have the bottle, i dont know if you guys remember but when i first got my boat the previous tech had switched the wires on ignition switch. When my tech was working on and had it apart it had a small green bulb attached to it an my tech did not know why he hust left after he fixed it.

Stodge

The green LED is the FireBoy indicator that is meant to be in the dash.