Bosch SMS50E02GB/04 Dishwasher Error E09

[jontymox]

Good afternoon all,

Wondering if I can obtain some help/advise relating to the above dishwasher?

Attended the above appliance, and confirmed no heat fault.

Heat Pump tested ok as far as possible.

Therefore, as no power output from electronic control module from related terminals, I removed and replaced the unit.

However, all was well, until first drain when the e.c.m. decided to overheat and trip, resulting in damaged new e.c.m!

So, clearly there is a dead short in the wiring loom/system, and I would appreciate how to proceed in determining from where.

Best wishes,

jonty

[Martin]

Re: Bosch SMS50E02GB/04 Dishwasher Error E09

jontymox wrote:Heat Pump tested ok as far as possible.

Don’t quote me on this but I’m thinking the heat pump the source of all this aggro?

This job’s getting expensive. :shocked:

[timdowning]

Re: Bosch SMS50E02GB/04 Dishwasher Error E09

I know they modified some of the heat pumps & therefore the wiring. Maybe when you changed the module you should have changed the heat pump & wiring to the newer version??

[jontymox]

Re: Bosch SMS50E02GB/04 Dishwasher Error E09

Mmmm,

The appliance has the modified heat pump and associated wiring, which gave the approximate Ohms readings obtained online.

Hence, I was as sure as can be that the module was faulty and renewed it.

I will contact Bosch, although I don’t expect any advice/information.

[jontymox]

Re: Bosch SMS50E02GB/04 Dishwasher Error E09

Back to the Drawing Board,

Bosch unable to offer any technical help, so I’ll carry out some further wiring loom inspections over the weekend.

Thank you Tim for your sensible thoughts.

I am a little upset that an “Appliance Wizard” chooses to post inappropriate comments on this excellent forum, such as “This job’s getting expensive. :shocked:

I can confirm that the heat pump is not the “source of all this aggro.”

As mentioned, I tested this component in situ’ which is quite an awkward job in itself, and obtained satisfactory Ohms resistance readings.

This appliance has been fitted with the modified heat pump and associated wiring, possibly under warranty, although I cannot confirm with the customer due to their ill health.

Having had a look at exactly where the control module has been damaged, I can confirm it is not in the vicinity of the multi plugs related to the heating section/s.

The module has been damaged in the six pin multi plug area, ( two red, two yellow, and two blue wires connected via a multi plug.

Can anyone provide a wiring diagram for this m/c as I do not know which section of the module/wiring etc the above relates to.

Kind regards,

jonty

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