Ferroli Modena 80e problem.

[Fabby19]

FERROLI FAN ASSY VENTURI KIT 39809790 BRAND NEW on eBay (end time 05-Mar-11 12:46:27 GMT)
Hope that link works gas man.

 

[Billy Bob Bob]

thats the earlier type which yours may have have you your gc number try here [DLMURL="http://www.gas-spares.co.uk/Catalogue/FERROLI/BOILERS-Combi/MODENA-Range"]MODENA Range - Gas Appliance Spares (Preston) Ltd[/DLMURL]

 

[rm1]

dannypipe the information is available from the tech helpline at ferroli if you get someone who knows what he is talking about and not just reading it from a book i personally take resistances from component parts this has an advantage as you can then test a component part of a boiler without needing power

now regarding the venturis the white one is common to the modena however the red venturi and brown venturis are different one is for the 80e and the other is for the 102e hope this helps

 

[Billy Bob Bob]

have commonly found the red and white fitted to both 80e and 102e suppose it depends on model year

 

[Fabby19]

Hi, its GC No 4726705-2. Assuming its -2 because the new pcb I bought is Mf02. Is the venturies responsible for shutting down the boiler when running hot water and the central heating is on because that seems to be the problem?

 

[quality]

Yes most probably

 

[Billy Bob Bob]

Hi, its GC No 4726705-2. Assuming its -2 because the new pcb I bought is Mf02. Is the venturies responsible for shutting down the boiler when running hot water and the central heating is on because that seems to be the problem?

yes, especially as you have found it works with the combustion door off,the venturies or aps are always suspect under these circumstances

 

[Fabby19]

Great thanks will buy the venturies and let you know, thanks for all your help.

 

[Plumb-Crazy]

Hi, This is my first post here. If I understand the problem that Fabby19 has, the fault is causing a lockout (red light). My experience is that the Modena 80E does not lockout when there is a fault with the airflow (either the APS or the venturi). If the airflow from the fan is not detected then there is no ignition - but there is no lockout.

It is worth checking if the lockout (red light) occurs BEFORE the point in the ignition when the fan starts, so that the fan does not even attempt to start up. I have just worked on a Modena 80E with this fault. The cause, in this particular case, was dry solder joints on the second PCB (ignition) but I believe the same symptoms can result from dry solder on the main (MF02) PCB. If you replaced the MF02 board then your problem could be the ignition board. If you are competent, you could try examining the solder with a magnifying glass for characteristic fine circular cracks. In particular, there are two relays on the ignition board. Check the solder on the pins of those relays.

 

[Fabby19]

Hi. thought I would update this post. Boiler was still working on and off so got out another engineer who confirmed it was a faulty pcb(ignition) which we have now replaced and fingers crossed its now working a treat.

 

[Fabby19]

Oh and thanks to all who replied, this is a fab site but hopefully dont need to use it again for a long long time!

 

[dwb78]

i looked at one today, took of top flue blank and she stayed lit, same as opening cover slightly. i thought straight away aps or venturi had gone. changed venturi and with no change, going to replace aps. nearly 100 % sure itll work. why the need for all this pcb talk. have i missed something

 

[zjericho]

what is aps?

 

[Toned.f]

air pressure switch

 

[Fabby19]

Sorry I'm not dwb78 but I'm surmising its the air pressure switch?

 

[willys warmer]

if it goes to lock out straight away prior to attempting ignition id say 88 degree stat. if boiler lights on hot water but goes out after a few seconds try removing ash tray at top of boiler if this stays on you will find its the fan.you can elliminate aps by trying heating first. if the heatings ok the fan is cause it is not getting the speed it requires for h/w. oh if youve replaced board try setting minimum maximum pressures on board /gas valve.

 

[Kewat66]

Hi I have been working on an 80e and have a similar problem. I bought the venturis, changed the red one but couldn't see were the white one went as it was missing. I did fine it later laying on the floor in 2 bits. Looks like someone has been at it before. The manual gives no indication of where either of them are situated. I think it goes on the base under the chamber?
thanks