Ideal Mexico Super 2 - Won’t Light

[willingz]

Changed faulty (though still performing basic functions) Potterton EP2002 for replacement EP2, so had to turn off power and hence boiler.
To light boiler I followed instructions:-
1. Power and thermostat off
2. Slide Power Control Button to right, release and wait 3 minutes
3. Depress PCB and operate ignition button and after pilot lights keep PCB down for 15 seconds

But as soon as PCB released the pilot goes out. I made repeated (about 5) tries, waiting the prescribed 3 minutes before each, and held PCB down for increasing periods of up to about 90 seconds, but without success.

I don't see how, but could the new programmer be the problem ?

All advice gratefully received.

 

[Dan Robinson]

Call a professional. This is not a diy repair.

 

[Madrab]

No, it won't be the programmer, it'll be something internal.

As @Dan Robinson mentioned, you'll need a boiler engineer in to sort it out.

 

[willingz]

Thanks DanR and Madrab for your advice. I’ve engaged a Gas Safe pro. who succeeded in lighting the pilot explaining that programmer has to be turned on (meaning power also reaches boiler which ignores Ideal’s instruction that power should be off ?), but boiler will not fire. Diagnosis was I need new Gas Control Valve.

But I’m told the GCV, which per Ideal’s original Installation instructions is a Honeywell VR 4700 E 1031, is unobtainable.

I’ve since made my own online enquiries and the nearest I found was V (not VR ) 4700 E 1031. I’m fervently hoping that either supplier’s description was wrong or the part has simply been renamed, but I can’t contact them until Monday.

If anyone knows the answer or knows where I can get the right part I’d be very grateful to hear from them.

 

[FiremanT]

.

 

[45yearsagasman]

That boiler needs no power to start the pilot light. I wouldn't trust your mans diagnosis. Get someone else.

 

[blup]

I have a similar boiler and when my plumber (gas safe engineer) indicated the gas control valves can go on these boilers when older I found this site helpful:

https://www.gas-spares.co.uk/Catalo...ANGE/MEXICO-SUPER-MK1-RANGE/MEXICO-SUPER-80RS

Blup

 

[Madrab]

https://www.gas-spares.co.uk/Catalo...ANGE/MEXICO-SUPER-MK1-RANGE/MEXICO-SUPER-80RS

Careful where that link takes you to, that page is not for your boiler

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+1 - I'd be getting another boiler engineer in tbh as @45yearsagasman mentions, someone that's familiar with these older boilers, no power should be needed just for the pilot.

A compatible gas valve for this boiler is available but that should be left to the the engineer to organise, fit and test.

 

[ianmcd]

As the others are saying, you dont need the power on to light your pilot light, find an engineer familiar with these, they are a very simple boiler, do not buy a gas valve and attempt to install it yourself , the valve needs setting up once installed , not a DIY job, and you may not need a gas valve, there is another part on your boiler that it is more likely to be .