Fairline Phantom 46 Shower Sump Pump

[Paul_f7]

A brief technical question, which I hope a forum member will be able to help with.

I have replaced the Rule Shower Sump (packaged unit) on a like for like basis. The unit has been tested with a seperate 12v supply, and works fine. But when connected to the original power feed its dead. The breaker on the main panel is on, so I was wondering if there is an inline fuse which may have blown. If there is, does anyone know where I can find it.

Cheers

 

[jfm]

Very very unlikely to have inline fuse so you'll have to trace the wiring and find where the circuit has broken. Could be on the + or - side, obviously. Shouldn't be difficult as the failure is likely to be at a termination not along the length of the wires

 

[jimmy_the_builder]

Have you put a meter on the supply at the pump to prove definitively that there is a supply there? It's worth also putting your meter on the positive at the pump, with a completely different negative connection - in case it is the negative that is the problem (I've had this more than once on my boat).

Edit: sorry, I'm basically just repeating jfm's advice.

 

[petem]

Just out of interest, are there individual breakers on the main panel for the bilge pumps. I'd always assumed they were hard wired bypassing anything that could accidentally result in them being switched off.

 

[stelican]

A brief technical question, which I hope a forum member will be able to help with.

I have replaced the Rule Shower Sump (packaged unit) on a like for like basis. The unit has been tested with a seperate 12v supply, and works fine. But when connected to the original power feed its dead. The breaker on the main panel is on, so I was wondering if there is an inline fuse which may have blown. If there is, does anyone know where I can find it.

Cheers

This may be frowned upon but you can test the supply and return to circuit breaker by momentary touching the positive and neg together at the shower sump end , If the circuit is okay the breaker will pop out.
MAKE SURE THERE ARE NO EXPLOSIVE FUMES IN THE BILGES!





y

 

[jimmy_the_builder]

Just out of interest, are there individual breakers on the main panel for the bilge pumps. I'd always assumed they were hard wired bypassing anything that could accidentally result in them being switched off.

The shower sump pump (per the op) on my boat has its own breaker but is commonly also wired into the domestic water pump breaker circuit. Bilge pumps do also have their own breakers but these are on the main heavy duty 12v distribution panel, ie away from the breakers that you might be accessing on a day-to-day basis. It's hard to imagine any appliance being permanently hard-wired to the batteries without any protection at all.

 

[Paul_f7]

Thanks everyone, having checked with a multimeter [not touching live and earth lol] found that no power to the pump, so traced back and found that behind the panel above the beds in the twin cabin there is a 5amp blade fuse that had blown. So reconnected everything and installed new fuse and now all working - its taken all day, but as we are having a long weekend on Yarmouth IoW and the weather has been changable not a complete waste of a day - plus I can have a shower now.

Once again thank you for the advice.

 

[jimmy_the_builder]

Thanks everyone, having checked with a multimeter [not touching live and earth lol] found that no power to the pump, so traced back and found that behind the panel above the beds in the twin cabin there is a 5amp blade fuse that had blown. So reconnected everything and installed new fuse and now all working - its taken all day, but as we are having a long weekend on Yarmouth IoW and the weather has been changable not a complete waste of a day - plus I can have a shower now.

Once again thank you for the advice.

Unusual arrangement - why have a fuse _and_ a breaker? Good that you got it sorted though.

 

[stelican]

Thanks everyone, having checked with a multimeter [not touching live and earth lol] found that no power to the pump, so traced back and found that behind the panel above the beds in the twin cabin there is a 5amp blade fuse that had blown. So reconnected everything and installed new fuse and now all working - its taken all day, but as we are having a long weekend on Yarmouth IoW and the weather has been changable not a complete waste of a day - plus I can have a shower now.

Once again thank you for the advice.

Glad you had a multimeter
Hindsight should have checked wiring diagram lol

 

[petem]

The shower sump pump (per the op) on my boat has its own breaker but is commonly also wired into the domestic water pump breaker circuit. Bilge pumps do also have their own breakers but these are on the main heavy duty 12v distribution panel, ie away from the breakers that you might be accessing on a day-to-day basis. It's hard to imagine any appliance being permanently hard-wired to the batteries without any protection at all.

Thanks Jimmy, for some reason I misread the OP's post and assumed he was talking about bilge pumps. Anyhow, your answer makes perfect sense.

 

[petem]

Glad you had a multimeter
Hindsight should have checked wiring diagram lol

I don't have a P46 manual but have one for a Mk2 P38 and that show no inline fuse for the shower sump pump. As other have said, when you have a breaker, why would you have an inline fuse?

What might be worth checking is that the supply for this pump is the original one (via the breaker) and not something that has been bodged, with the addition of an inline fuse, by a PO.