Fairline Squadron electrics Help Please

Truro Ex Pat

Truro Ex Pat

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Hi Guys my Air con chiller button with blue surround on helm will not turn off.
It drives the AC pump of sea water even though the AC is not on?
 
You should be able to turn off using the panel in the galley.

I assume you have powered down the system ?

If that does not work then I think your only port of call is Fairline / energy solutions for a new module.
 
Truro Ex Pat said:
Hi Guys my Air con chiller button with blue surround on helm will not turn off.
It drives the AC pump of sea water even though the AC is not on?
Click to expand...

Don't assume electrics per se, but think the air con unit's control unit. I had a similar issue with one of the air con plants on Play d'eau. I called the air con manufacturer which passed me to a Dealer who was brilliant. Talked me through some potential causes over the phone and it turned out to be a small (but accessible) trigger circuit boards. Result.
 
The button with the blue led halo surround merely drives a 24v latching relay coil. It doesn't form part of the actual a/c system. Assuming you don't have flat batteries (have you?) then it sounds like the relay or the 24 v relay coil circuit has a fault. Nothing wrong with A/C. Easy to check the coil circuit using multi meter to locate the fault. As amillington says above this is all energy solutions hardware.
 
Yes guys thanks, I tried to power down the system with some excellent help from Nick Barke but it did not alter the problem and and the batteries did go very low so this may have caused part of the problem, I have sent email to ES so await reply.
the coil problem sounds like something I may be able to try spa was just wondering where the coil is located, the problem is on both the Galley and chiller. I can turn the breaker off in engine room to get over the pump running but would like to fix it if possible.
 
Do you mean the batteries were low at the time you were trying to turn off the airco? If yes then as I said THAT is your problem. The blue-halo-led button operates a 24v relay coil. If your batteries get to say 21v or thereabouts the relay will just not work. No point emailing ES, and no point powering down/up the system. Just flick the battery charger on or start an engine to get 24v, and see if it works.
 
The batteries were just low for a short period like over night and the charger is on and the batteries fully charged so not that problem either?
In the back of the unit there is a ribbon connector marked C which is the one than drives the panel switches in question and tried to disconnect and reconnect which did nothing other than turn it off when not plugged in?
I think its unlikely both switched are stuck on so it must be something else?
 
This maybe rambling .... but it helps me think it through!

You have 2 x chiller buttons and and air handlers and aux switch.

Just to be 100% clear the air con chiller buttons are the ones we are talking about and they are both on and the unit in the kitchen agrees that both chillers are on ( it will cycle 1/ 2 )

If you turn them off the unit in the kitchen still agrees that both units are on.

Is that correct?

I now have an older S58 as opposed to a newer S65 ( with your system on it). that has manual switches ( or the helm fuse panel which is simpler) to control the compressors.

JFM is most likely correct that the switch runs a relay as opposed to the switch actually handling the current.

The odd thing is that both have failed / are in this state at the same time.

Getting to the area behind the panel ( one a s65 anyway) is tricky but the relays are likely to be there somewhere - but the fact both have failed strikes me as odd.

The only people who can answer this in my view are Martin who runs technical at the factory, or a better place to go would be energy solutions. They are a small company and if you call them they can save you the effort of hunting around for what is wrong.

A cheaper solution could be

http://coastalrides.co.uk/helm-control-panel?search=fairline&page=3

who have it in stock for £413 + vat - and they always take an offer.

The S65 uses a CAN type bus as opposed to wires. I don't know if this circuit is on that system, but it does go wrong ( 2 total failures and one module failure in 3 years on ours) so it is quite possibly something similar.

Good luck
 
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