one for the sparkies?

[jongood]

My ehu breaker is playing up, it is 20 years old and I only use it occasionally but its getting that i need to flick it off and on a few times before it works.

I can still get one but wondering if there's something better out there? its double pole.

 

[Neil n Pat]

ABB is one of the best makes on the market. Is the unit tripping with the blue button popping out then having to be reset ? if so you have a slight leakage downstream. Switch everything off that has a mains supply to it i.e. fridge, battery charger, boiler if its got heating elements in it etc. Then switch each unit on one at a time to see when your cct. breaker trips. You will then know what device it is. If it trips with everything switched off you have leakage in the wiring distribution which will be more problematic.
If the cct. breaker isn't tripping and you have to keep flicking the main switch up and down to get it to engage either the cct. breaker has become tired or your downstream current is on the edge of too much current being pulled which is highly unlikely.
Finally disconnect the EHU then taking out the output side of the cct. breaker wires then plug in the EHU again and try again. If you have to keep flicking the switch you definitely require a replacement.
Replace the unit with same.
cct. = circuit
Goes without saying make sure you have the EHU unplugged before removing the output wires. Standing on a wax slab wearing marigolds is ideal PPE. Personal Protective Equipment. Only joking.
If you feel uncomfortable doing this go to a rally then scratch your head with a bewildered look whilst holding the EHU plug and I can guarantee a fellow motorhomer will be there to help you.
Hope this helps.

 

[Silver-Fox]

ABB is one of the best makes on the market. Is the unit tripping with the blue button popping out then having to be reset ? if so you have a slight leakage downstream. Switch everything off that has a mains supply to it i.e. fridge, battery charger, boiler if its got heating elements in it etc. Then switch each unit on one at a time to see when your cct. breaker trips. You will then know what device it is. If it trips with everything switched off you have leakage in the wiring distribution which will be more problematic.
If the cct. breaker isn't tripping and you have to keep flicking the main switch up and down to get it to engage either the cct. breaker has become tired or your downstream current is on the edge of too much current being pulled which is highly unlikely.
Finally disconnect the EHU then taking out the output side of the cct. breaker wires then plug in the EHU again and try again. If you have to keep flicking the switch you definitely require a replacement.
Replace the unit with same.
cct. = circuit
Goes without saying make sure you have the EHU unplugged before removing the output wires. Standing on a wax slab wearing marigolds is ideal PPE. Personal Protective Equipment. Only joking.
If you feel uncomfortable doing this go to a rally then scratch your head with a bewildered look whilst holding the EHU plug and I can guarantee a fellow motorhomer will be there to help you.
Hope this helps.

What an excellent reply

I also know not to buy any marigolds

 

[MR BLO]

Ditto that Silver-Fox
A most excellent response

 

[jongood]

ABB is one of the best makes on the market. Is the unit tripping with the blue button popping out then having to be reset ? if so you have a slight leakage downstream. Switch everything off that has a mains supply to it i.e. fridge, battery charger, boiler if its got heating elements in it etc. Then switch each unit on one at a time to see when your cct. breaker trips. You will then know what device it is. If it trips with everything switched off you have leakage in the wiring distribution which will be more problematic.
If the cct. breaker isn't tripping and you have to keep flicking the main switch up and down to get it to engage either the cct. breaker has become tired or your downstream current is on the edge of too much current being pulled which is highly unlikely.
Finally disconnect the EHU then taking out the output side of the cct. breaker wires then plug in the EHU again and try again. If you have to keep flicking the switch you definitely require a replacement.
Replace the unit with same.
cct. = circuit
Goes without saying make sure you have the EHU unplugged before removing the output wires. Standing on a wax slab wearing marigolds is ideal PPE. Personal Protective Equipment. Only joking.
If you feel uncomfortable doing this go to a rally then scratch your head with a bewildered look whilst holding the EHU plug and I can guarantee a fellow motorhomer will be there to help you.
Hope this helps.

Thanks for the detailed reply. It only happens when I first plug into EHU, it initially trips the breaker, but when I reset it I have to switch the switc next to it a few times to get it to make. The system has an factory fit auto switchover on it for the inverter, I have wondered whether this initially trips it.

I'm ok with electric but not fully up to date with whats available now, hence the question, it sounds like I should replace like with like?

^{_{Subscribers  do not see these advertisements}}

 

[autorouter]

My ehu breaker is playing up,

Just to be clear, when you say ehu breaker do you mean the lower one (RCD with the blue switch and Test button) or the upper one (MCB with black double switch and no test button).

The MCB is a 16A breaker (B16), so if that is tripping either you have a serious wiring problem or it's partially failing. These double-pole breakers are hard to find in a DIY store, but worth trying a motorhome/caravan accessories shop.

 

[jongood]

Just to be clear, when you say ehu breaker do you mean the lower one (RCD with the blue switch and Test button) or the upper one (MCB with black double switch and no test button).

The MCB is a 16A breaker (B16), so if that is tripping either you have a serious wiring problem or it's partially failing. These double-pole breakers are hard to find in a DIY store, but worth trying a motorhome/caravan accessories shop.

The RCd is the one I have to reset everytime I plug in but then its fine.
The MCB is the sticky one.

I don't use EHU that often so wondering if contacts have got a bit furry