Wire Connectors
- Thread starter Martin_C
- Start date
- Apr 13, 2019
- 545
- 1,287
- Funster No
- 59,878
- MH
- Burstner 747-2
- Exp
- since 2010
Hi not sure about this connector but i looks like it may be a spring loaded connector. can you insert a screwdriver in the hole above the cable to release the pressure on the connection? Remember to mark the position of each cable.......
Thanks for the tip Catpirate, I will try that.
It is a spring loaded connector.
I suspect as this board is almost at floor level the Truma Combi unit will have the be removed to a bench in order to get enough clearance for a screwdriver to be inserted.
Martin
It is a spring loaded connector.
I suspect as this board is almost at floor level the Truma Combi unit will have the be removed to a bench in order to get enough clearance for a screwdriver to be inserted.
Martin
I would just bend a suitable thin probe, you will not need a lot of force to release the cables.
Another work around which I use quite often is to get a decent sewing pin, I use those with round plastic heads. Insert the pin through the cable insulation, this will give you more than enough contact to take voltage readings. It also gives you real live readings as the cables remain in circuit. You will not cause any damage to the cable.
Geoff
Another work around which I use quite often is to get a decent sewing pin, I use those with round plastic heads. Insert the pin through the cable insulation, this will give you more than enough contact to take voltage readings. It also gives you real live readings as the cables remain in circuit. You will not cause any damage to the cable.
Geoff
pappajohn
LIFE MEMBER
Why not remove the whole plug or Is the plastic part soldered to the board.
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It looks like 4 leavers above? Maybe try lifting one at the time like on the wago connectors. It may come up of the pcb with the connector. Have a look if the connector is soldered onto pcb, or soldered pins. If pins, that’s a indication the connector unclips of the pcb.
Thanks Guys for getting back to me.
The connector is soldered to the lower PCB board on a Truma 6E.
I did try moving the tags on top, but no joy.
A probe will be my next effort.
If I can't get the wires to release easily, and they are low to the floor in a bunk, I will take the Combi out onto a bench.
I can then look up under the connector and see if there is a release mechanism.
If that in turn fails the wires can be disconnected from the elements and the resistance checked that way.
If I can release the wires I will post how later.
Cheers Martin
The connector is soldered to the lower PCB board on a Truma 6E.
I did try moving the tags on top, but no joy.
A probe will be my next effort.
If I can't get the wires to release easily, and they are low to the floor in a bunk, I will take the Combi out onto a bench.
I can then look up under the connector and see if there is a release mechanism.
If that in turn fails the wires can be disconnected from the elements and the resistance checked that way.
If I can release the wires I will post how later.
Cheers Martin
pappajohn
LIFE MEMBER
Extremely poor design.
It should be a plug and socket or plug and pins.
Poor design did cross my mind, the whole unit is very difficult to access.
Previous vans with the same unit gave error codes on the display.
Never got sorted properly, so the van went.
Then I made the mistake of thinking another newer one couldn't be as problematic, guess who got it wrong.
Martin
Previous vans with the same unit gave error codes on the display.
Never got sorted properly, so the van went.
Then I made the mistake of thinking another newer one couldn't be as problematic, guess who got it wrong.
Martin
If you are testing the elements, then I guess it is either not working on EHU or working at half throttle.
If you find an element has gone, you may need to contact your friendly mortgage advisor. They are only available in pairs?
I have seen reports of non genuine elements at quite reasonable prices, probably worth looking into.
Also, if an element has failed it will almost certainly have blown. That is to say the outer casing will have expanded at or near the fault. Do not try to remove a blown element by force, you could damage the housing. Better to cut the element in pieces so that it can be removed without use of any force.
It's not a bad job as the whole boiler has to be removed, but the you can take it indoors where it is warm and take your time over the job.
Geoff
If you find an element has gone, you may need to contact your friendly mortgage advisor. They are only available in pairs?
I have seen reports of non genuine elements at quite reasonable prices, probably worth looking into.
Also, if an element has failed it will almost certainly have blown. That is to say the outer casing will have expanded at or near the fault. Do not try to remove a blown element by force, you could damage the housing. Better to cut the element in pieces so that it can be removed without use of any force.
It's not a bad job as the whole boiler has to be removed, but the you can take it indoors where it is warm and take your time over the job.
Geoff
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I have a weird problem.
No hot water on EL1, EL2 OK.
Heating slight on EL1, EL2 OK.
Water EL1 = 3watts, EL2 = 920 watts.
Heating EL1 = 468watts,EL2 = 920watts.
A tank full of hot water from cold takes 28minutes.
I have just emailed Truma Support for their opinion.
When I get a reply I will post it.
Replying to donkey £165 for 2 bare elements, £290 for complete kit with gaskets etc.
Dealer labour an extra £400.
New 6E unit +£2000.
Martin
No hot water on EL1, EL2 OK.
Heating slight on EL1, EL2 OK.
Water EL1 = 3watts, EL2 = 920 watts.
Heating EL1 = 468watts,EL2 = 920watts.
A tank full of hot water from cold takes 28minutes.
I have just emailed Truma Support for their opinion.
When I get a reply I will post it.
Replying to donkey £165 for 2 bare elements, £290 for complete kit with gaskets etc.
Dealer labour an extra £400.
New 6E unit +£2000.
Martin
I was confused when one of my elements went down, but Truma use an unusual way to connect the two elements. It is not a case of one element for low setting and both elements for high setting.
I would guess from your feedback that one element has gone down.
Regarding price, that is good. Last time I looked they were north of £300, where is your quote from please.
Not for me to say, but it really isn't a difficult or complicated job, but if you are more comfortable letting your dealer do the job, then that's ood.
Geoff
I would guess from your feedback that one element has gone down.
Regarding price, that is good. Last time I looked they were north of £300, where is your quote from please.
Not for me to say, but it really isn't a difficult or complicated job, but if you are more comfortable letting your dealer do the job, then that's ood.
Geoff
I've used these. You need a 3mm terminal screwdriver in the hole above the cable, push in firmly and lift the screwdriver up a bit, the wire will drop straight out 
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