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Topic: Zig cf98

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Jers1982

11/2/2017 at 8:08pm
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I have power to zig unit but no mains equipment working although all fuses are fine

tango55

11/2/2017 at 8:46pm
Location: Lichfield
Outfit: Coachman Amara 450

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The fuses in the circuit are there to protect only the 12 volt power and is not at all related to 240 volt mains power. The mains power is on a different circuit altogether and to protect the 240 volt mains circuit there are trip switches on the MCB very much the same as the domestic ones at home. The power to the Zig unit is 12 volt power with fuses in circuit so you need to look to see where the MCB's are and check to see if any have tripped at all.

Jers1982

11/2/2017 at 8:50pm
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Thanks
Where abouts would I find this? The zig unit mains light is on but the only way it will power anything is through 12v despite not having a battery connected.

Jers1982

11/2/2017 at 8:50pm
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It's a zig cf98 from a 1980s Avondale

Rob and Tina

11/2/2017 at 8:53pm
Location: Royal Forest of Dean
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The 240v system breakers etc should be in a locker, usually near where the 240v hook up lead fits.

Rob

Jers1982

11/2/2017 at 8:58pm
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Hi
Breaker works and power going to zig as mains switch lights up. does any else have a 1983 Avondale or zig cf98 as it appears to have only min electronics

tango55

11/2/2017 at 9:42pm
Location: Lichfield
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The mains switch on the zig unit may be illuminated but it's the isolation switch to the fridge and battery charger. You quoted that 'The zig unit mains light is on but the only way it will power anything is through 12v despite not having a battery connected'.
12 volt power only comes from the battery so there is some confusion here as the charger is active but nowhere to distribute the current to. Not only could the battery terminals make contact but the 14 volts output from the charger isn't being stabilised which could lead to a defective charger.
Below is a typical picture of a Zig CF-98 unit.

Here

Jers1982

12/2/2017 at 9:36am
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Thanks for that yes it is the same zig unit the isolation switch to the fridge (orange one) lights up and nothing works unless I switch the 12v on which then only lights the lights which I guess are the only other 12v items in the caravan. These work with the battery removed and the charger off. I have tested the breaker linked to the zig which works. Is there another isolator stopping mains power somewhere? There are no sockets working or power to the carvelle heater. I will try to add some pictures later in case someone can help

Bill Terry

12/2/2017 at 1:50pm
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Bit of a silly one.. But is your mains lead ok?

-------------
Roughing it in style at Calloose caravan and camping holiday park nr St Ives.(seasonal pitch)
Its not a hangover, its wine flu!

nant mill.N/Wales
just dont go there.

Jers1982

12/2/2017 at 1:55pm
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I assume so as it is putting power to the zig unit and is brand new.

kaspa1972

12/2/2017 at 2:58pm
Location: Chester
Outfit: Adria Optima 440B

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Hi Jers1982

When you tested the breaker for the supply to the Zig how many breakers were there in the distribution board? Usually there are two 240v circuits. One with a 10 amp breaker and one with a 5 amp breaker. Its possible that one of the breakers is faulty and not allowing 240v to the circuit with your sockets etc. on.

There isn't usually another isolator in these circuits. Although it's possible a previous owner has altered the wiring in some way.

If it's not a faulty breaker its worth checking how the 240v system is wired. If the sockets have been wired as spurs off perhaps one original socket then a fault in the original socket could prevent 240v getting to the others.

Personally I'd trace the wires from the distribution board to the first connected item (e.g. a socket or a connection Block) and check if each circuit is getting 240v. If you don't get 240v and the wiring is correct it would suggest that the breaker in the distribution board is faulty.

As always if you're not comfortable with working on electrical circuits don't take a chance just ask an electrician to look at it for you.

Hope you get it sorted

Sean

Jers1982

12/2/2017 at 4:56pm
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Thanks Sean
The wiring has been altered as there is an external isolator and spur. Will try tracing when it's warm enough

tango55

12/2/2017 at 5:41pm
Location: Lichfield
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You should have stated in your original post that the wiring had been altered because you are expecting people of this forum to provide a solution thinking that the electrics are factory fitted equipment. Because of this it could be anybody's guess as to what the problem could be so the best advice is to proceed as 'kaspa1972' has said and get a qualified electrician to look at it. It is obvious that the electrical circuit requires a methodical way of tracing the fault by an elimination process which can only be conducted by physically testing the equipment.

kaspa1972

12/2/2017 at 6:26pm
Location: Chester
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Quote: Originally posted by Jers1982 on 12/2/2017
Thanks Sean
The wiring has been altered as there is an external isolator and spur. Will try tracing when it's warm enough

Hmm, in that case I'd be tempted to redo the wiring (or have it checked / redone) so that I was happy it was all OK. I had to do it in my caravan as it had some horrible wiring bodges when I first bought it. Definitely worth it for the peace of mind.

Sean

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