Problème électrique GFCI déclenche
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Problème électrique GFCI déclenche
Voici le problème. Lorsque je branche ma roulotte à le prise extérieur de la maison le GFCI déclenche et ce même si tous les breaker de la roulotte sont à OFF. Par contre si je me branche à une prise de courant qui est à l'intérieur du garage alors tout fonctionne normalement. Est-ce que quelqu'un a déjà vécu un tel problème ou a une idée de ce qui peut bien se passer ? Merci.
- A. Martin
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Re: Problème électrique
Bonjour ledfr et bienvenue sur le forum . Ta prise extérieur n'est pas bien branché , fais la vérifier pour connecter les fils a la bonne place .
André
- fiftyseven
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Re: Problème électrique
Oui, à moi et mon chum qui a aussi un classe À. Pas moyen de se brancher à une prise protégée ... Personne n'a de reponse à notre problème????
2001 Fleetwood Flair 32'
Youyou: Cavalier 2001
On the road again
Youyou: Cavalier 2001
On the road again
- Dandau
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Re: Problème électrique
ledfr a écrit:Voici le problème. Lorsque je branche ma roulotte à le prise extérieur de la maison le GFCI déclenche et ce même si tous les breaker de la roulotte sont à OFF. Par contre si je me branche à une prise de courant qui est à l'intérieur du garage alors tout fonctionne normalement. Est-ce que quelqu'un a déjà vécu un tel problème ou a une idée de ce qui peut bien se passer ? Merci.
Pour ce genre de problème je vois deux explications.
1- La prise GFCI est defectueuse.
2- La prise GFCI est bonne et fait son travail de protection: donc déclenche parce que quelque chose ne tourne pas rond sur le VR et vous protège.
Noubliez pas qu'une prise GFCI est un disjoncteur particulier mais qui disjoncte soit quand il y a problème soit quand le courant électrique est trop élevé pour le circuit qu'il alimente.
Dandau
Monaco Dynasty Accepter les autres tel qu'ils sont, c'est également se respecter soi-même!
- PierreG
Re: Problème électrique GFCI déclenche
Le principe d'un GFCI, est qu'il est capable de détecter une très minime fuite de courant par le fil de terre (ground). Normalement, le courant passe par le fil noir, et reviens (en totalité) par le fil blanc. Aucun courant ne devrait revenir par le fil de terre, lorsqu'une installation est en bonne ordre. Beaucoup de choses peuvent créer une fuite, détectable par le GFCI, mais pas suffisant pour faire déclencher le disjoncteur de la prise :
- Un fil légèrement rongé par une souris;
- Un isolant électrique trop humide;
La recherche de ce genre de problème est longue et doit être faite minutieusement. Malheureusement, il n'y a pas de recette miracle. Il faut défaire le circuit électrique un fil à la fois, jusqu'à ce que l'on trouve le moment ou le GFCI ne déclenche plus.
Ca veut donc dire que ton problème est entre ta prise extérieure et ton panneau principal dans la roulotte.
- Un fil légèrement rongé par une souris;
- Un isolant électrique trop humide;
La recherche de ce genre de problème est longue et doit être faite minutieusement. Malheureusement, il n'y a pas de recette miracle. Il faut défaire le circuit électrique un fil à la fois, jusqu'à ce que l'on trouve le moment ou le GFCI ne déclenche plus.
et ce même si tous les breaker de la roulotte sont à OFF
Ca veut donc dire que ton problème est entre ta prise extérieure et ton panneau principal dans la roulotte.

- paris65
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Re: Problème électrique GFCI déclenche
salut! vu sur le net ca peut etre une piste dsl ces en anglais
Answer -
Hi Patti:
OK, my guess is that you have an open ground wire in (or to) the coach. The way to check this is to plug the extension cord into a non GFI protected outlet and see if it still trips. Open grounds are quite common for coaches. They are either not correctly connected at the factory or break loose. The AC power in a motor home floats, that is there is no physical ground connection like a grounding rod or utility ground. A GFI senses this and trips. Anyway lets determine the problem by connecting to a non GFI outlet.
Bill
Hi Bill,
Well you are good..... I tried a non GFI outlet and I had full power to my RV with no problems. Now I hate to be a pest but Im not quite sure what that means ... should I pull out the power inverter and look for a loose wire?
Thanks again,
Patti
Answer -
Hi Patti:
At least you know what the problem is. Unfortunately most campgrounds are equiped with GFI outlets at their sites.
An open ground is what a GFI is designed to protect you from. The reason for that is that there is a chance that you could get a shock if an appliance or tool becomes shorted. If the ground is open the GFI senses that and trips. The ground (green wire) in your extension chord is sort of like an extra neutral (white wire). The two are bonded, tied, together at the main power panel in you RV. The GFI senses the connection and everything is ok, when the connection is broken the GFI trips. The break can be anywhere and finding it can be tough. Make sure the extension chord you are using has a three wire plug would be first. Then look at the junction box where you plug the chord into the RV always looking for the green wire connection then just chase the wires all the way to the main panel until you find the break. It will be there somewhere. Good luck and good RVing.
Bill
Answer -
Hi Patti:
You are welcome.
A GFI or GFCI circuit is pretty technical when you get down to it. In an electrical AC circuit all the current running to the device goes through the black (hot) wire and all, 100%, of the current returning from the device goes through the white wire. A GFI breaker will also trip if those to currents are not exactly the same. That is to say that some of the hot wire current goes somewhere else (ie, the ground wire, hence ground fault). It is called leakage. While you are looking, also look for any place that might be happening, corrosion around a connection, partial shorts in the hot wire rubbing on a metal part, anything that does not look right. I have spent days finding the trouble. Good luck. You might try turning all the AC breakers off in the coach and then plug it into a GFI outlet. If it trips the problem is before the coach breaker box. If it does not trip then turn the AC breakers on one at a time, the one that trips the GFI is the circuit that has the problem.
Well again you gave me great advice .... I turned off all the breakers .
and then plugged into a gfi outlet - no trip I then turned on each breaker one at a time and sure enough one breaker was the problem .... the "general purpose branch" so again thank you for narrowing it down even more
thanks
Patti
Bill
Answer
Patti:
You are very welcome. You know where to look now. See what things are plugged into those outlets and do the same, unplug all of them and plug them in one at a time etc. If you unplug everything and it still trips then the problem is from the breaker box to one of the outlets. Eliminate them one at a time and you'll have it solved.
Bill
Answer -
Hi Patti:
OK, my guess is that you have an open ground wire in (or to) the coach. The way to check this is to plug the extension cord into a non GFI protected outlet and see if it still trips. Open grounds are quite common for coaches. They are either not correctly connected at the factory or break loose. The AC power in a motor home floats, that is there is no physical ground connection like a grounding rod or utility ground. A GFI senses this and trips. Anyway lets determine the problem by connecting to a non GFI outlet.
Bill
Hi Bill,
Well you are good..... I tried a non GFI outlet and I had full power to my RV with no problems. Now I hate to be a pest but Im not quite sure what that means ... should I pull out the power inverter and look for a loose wire?
Thanks again,
Patti
Answer -
Hi Patti:
At least you know what the problem is. Unfortunately most campgrounds are equiped with GFI outlets at their sites.
An open ground is what a GFI is designed to protect you from. The reason for that is that there is a chance that you could get a shock if an appliance or tool becomes shorted. If the ground is open the GFI senses that and trips. The ground (green wire) in your extension chord is sort of like an extra neutral (white wire). The two are bonded, tied, together at the main power panel in you RV. The GFI senses the connection and everything is ok, when the connection is broken the GFI trips. The break can be anywhere and finding it can be tough. Make sure the extension chord you are using has a three wire plug would be first. Then look at the junction box where you plug the chord into the RV always looking for the green wire connection then just chase the wires all the way to the main panel until you find the break. It will be there somewhere. Good luck and good RVing.
Bill
Answer -
Hi Patti:
You are welcome.
A GFI or GFCI circuit is pretty technical when you get down to it. In an electrical AC circuit all the current running to the device goes through the black (hot) wire and all, 100%, of the current returning from the device goes through the white wire. A GFI breaker will also trip if those to currents are not exactly the same. That is to say that some of the hot wire current goes somewhere else (ie, the ground wire, hence ground fault). It is called leakage. While you are looking, also look for any place that might be happening, corrosion around a connection, partial shorts in the hot wire rubbing on a metal part, anything that does not look right. I have spent days finding the trouble. Good luck. You might try turning all the AC breakers off in the coach and then plug it into a GFI outlet. If it trips the problem is before the coach breaker box. If it does not trip then turn the AC breakers on one at a time, the one that trips the GFI is the circuit that has the problem.
Well again you gave me great advice .... I turned off all the breakers .
and then plugged into a gfi outlet - no trip I then turned on each breaker one at a time and sure enough one breaker was the problem .... the "general purpose branch" so again thank you for narrowing it down even more
thanks
Patti
Bill
Answer
Patti:
You are very welcome. You know where to look now. See what things are plugged into those outlets and do the same, unplug all of them and plug them in one at a time etc. If you unplug everything and it still trips then the problem is from the breaker box to one of the outlets. Eliminate them one at a time and you'll have it solved.
Bill
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