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Swiss Caravaner searching for Help - Primus Aquaflex AQWE6

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swiss_guy:
Dear community, i live in Switzerland near Zurich, im 44 and have a wife 2 kids and a dog ;) we have a 99 Polar 560GS Caravan wich we use as family and still love.

I have read nearly every thread about the Primus Aquaflex - Gas ignitor problem.

My Problem:

Initially i was no more able to activate the 12v pump via the control panel (big button). So i replace the BOSCH Relais.
Then i found out, the heater (Electric / Gas) works only when the water heater is also turned on, but everything was working.
This spring i wanted to test the Gas heater, not working.

I hear the blower turns on, after 15sec the gas switch opens (on the gas switch for a short time the 3rd led is active, then only the 2 top leds are active > see attached picture), the ignitor is active for 2-3 secs, then the blower starts to turn faster and nothing happens.

I checked the wiring, i checked the board from the controller, everything seems to be ok.

i suspect the following according to other troubleshooting topics;

- bad temperature sensors (one or both)
- the black flame sensor connected to the board
- the controller switch (last year after a bad ignition a red led was activated > this is no more the case)
- something broken on the controller

may i ask the finish experts for an advice?

Thank you very much and have a nice day.

mjo33400:
Ei siis punainen häriövalo pala? Lämmitin käynnistyy siten, että kaksi punaista lediä syttyy. Epäilen, että sinulla on kaasuventtiilin valkoinen liitin murtunut juotoksista. Meneekö tosiaan musta johto liekin tunnistin liittimeen? Sehän tarkoittaa, että kärjet on vaihdettu.

swiss_guy:
Hello, that was quick :)

The 2 LED are active when i activate the Gas button.
The 3rd LED is only active for 1sec, and then turns off.

i resoldered the cable socket on the board (i think its the flame detector with the black cable going down to the heater) it has only 1 pin.
you think the cable is broken?

Mjerica:
Hi, seems some misinterpretation to me....

@LaemmitinGuru: "Epaeilen, ettae sinulla on kaasuventtiilin valkoinen liitin murtunut juotoksista"
< I suspect you got broken solderjoint at gasvalves white connector >

 "Meneekoe tosiaan musta johto liekin tunnistin liittimeen? Sehaen tarkoittaa, että kaerjet on vaihdettu"
< Black wire to the flame detector? It means electrodes has been swapped >

Just a comment.... Black wire to the flame detector? Should'n be indeed. That wire is a of special
insulation like PTF ("teflon"), bright non-coloured, slightly stiff, the only of its kind in the
apparatus.

Do you have a multimeter at hand?

 I'll come back to this at next night (if not solved before that)

Mjerica:
At least here in Finnland we consider these repairs of caravanheaters
as "business as usual". Some of us are self sufficient, some may embark
themselves by help of fellow caravanpeople. But to comform the way of
helping it is always necessary to know  about resourses and abilities
available of those been helped.

  So you might shortly tell something about capabilities of yours
in technical matters. Can you read schematics? Can you conduct electrical
measurements assisted/unassisted? Have you basic understanding in
electronics.

  Aquaflex is not too complicated thing in general and we can
guide you throught fault tracing if you feel confident in making some
electrical measurements.


BTW, you didn't specify if your starting attemps ends up into alarm state?

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