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Mended three modules this week
F10 – Very narrow track adjacent to CN1 burned out (tracking to CN1 pad) – repaired track – OK
F08 X 2 – Heater relays (adjacent to CN1) faulty – replaced heater relays (£1 each from CPC PN:-SW01454 – 12v) – Sorted!
Very happy customers!
Andy 🙂
Re: Indesit/Ariston IDC type modules
Nice one Andy :tup:
Even though the machines are “not that great” shall we say, if we can start to effect repairs at a cost the customer will accept, good news for everyone, especially us repairers 😀
It even helps Merloni as the appliance doesn’t get slated by an engineer thus not loosing the customer’s confidence in the brand.
If only they’d listen eh 😉 🙄
Dave.
Re: Indesit/Ariston IDC type modules
Had an F08 fault today although there were no visible problems with the relays soldered connections I resoldered them HEY PRESTO IT WORKED. 🙂
Re: Indesit/Ariston IDC type modules
The way I see it Dave is that we have to get to grips with these machines, seeing that 3 major brand names (and probably 4) use pretty much the same gear.
OK, things are going to change when the machines using the three phase motors and accompanying control modules really start to appear on the independant repair scene but until then there are still plenty of the current merloni machines to repair. With the right knowledge they could still be a nice earner for a while.
Most faults on electronic modules are re-current due to stressed componants or bad design. Once a fault is diagnosed its much easier the next time because the weakness is exposed. Places that repair modules on a regular basis in most cases probably effect a repair very quickly because they know where to look.
On the subject of brushless three phase motors these are without a doubt the future. Since some of the good people on this site pointed me in the right direction I have done quite a bit of research on these. These motors are very simple in design and therefore relativly cheap to make, the coils are fixed and therefore suffer no mechanical stress so will probably be very reliable (unless weakness is designed into the coils).
(There will be no more carbon brush jobs to earn a quick buck so the suicide rate among appliance engineers (sorry Technicians) will escalate).
The clever part is the electronics that are responsible for controlling the current flow through the coils in the correct sequence and IMO is where most of the problems will occur especially the power devices that make up the inverter stage. These may be discrete componants or in the form of a power IC. so be ready to get the soldering iron out.
The inverter stage is driven by a Motor control unit (MCU) which may be a dedicated chip instructed by the main microcontroller or possibly integrated all into one device.
Happy times ahead 🙂
Re: Indesit/Ariston IDC type modules
Brilliant Daro1
if the problem does re-occur pop in a new relay as the fault may be intermittent, especially as there were no dry joints.
Andy
Re: Indesit/Ariston IDC type modules
Sorry – forgot to say, use a solder sucker to remove the solder from the joints and the relay should just lift out. This avoids damaging the tracks with too much heat.
Re: Indesit/Ariston IDC type modules
3 phase outline to be delivered at some point soon Andy? I hope this is rather different from the HD mains 3 phase some of us are used to? Please…….
Cheers,
Chris.Re: Indesit/Ariston IDC type modules
andy2 wrote:The way I see it Dave is that we have to get to grips with these machines
Quite my point Andy 😀
And if Merloni would allow us Independants a bit more technical info on them it would make it a whole lot easier.
Component level repairs are something I’ve always tried to achieve myself wherever possible, most satisfying when it “works” 😉
Dave.
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