Bosch SMS53E12GB Error code E01

[Tony Whitley]

(Spare parts searches have SMS53E12GB/some number but the label on the back just says SMS53E12GB. The control unit is EPG60110 dated 10.03.2010, the wiring to it looks OK and I reseated the connectors but it made no difference)

Searches suggest the heater or the control unit. The dishwasher stops about an hour into the cycle and the dishes are dry but not properly clean. There has been hot water in it (it’s slightly steamy but perhaps not as steamy as I’d expect).

Judging by the control unit date the dishwasher is 9 years old so replacing the £100+ controller doesn’t seem worth while but I read here something about fixing another dishwasher that had a dry joint on the PCB.

What is your advice?

Thanks.

[Tony Whitley]

(It seems you have new forum software which unfortunately doesn’t accept error codes as search terms because they’re too short.)

[kwatt]

Page is messed up but…

https://www.ukwhitegoods.co.uk/help/fault-codes/dishwasher-fault-codes/3058-bosch-sms-series-dishwasher-fault-codes

K.

[Tony Whitley]

Thanks, looks like I’ll be buying a new dishwasher then, I was kind of expecting that.

[electrofix]

Tony Whitley wrote:(Spare parts searches have SMS53E12GB/some number but the label on the back just says SMS53E12GB. The control unit is EPG60110 dated 10.03.2010, the wiring to it looks OK and I reseated the connectors but it made no difference)

Searches suggest the heater or the control unit. The dishwasher stops about an hour into the cycle and the dishes are dry but not properly clean. There has been hot water in it (it’s slightly steamy but perhaps not as steamy as I’d expect).

Judging by the control unit date the dishwasher is 9 years old so replacing the £100+ controller doesn’t seem worth while but I read here something about fixing another dishwasher that had a dry joint on the PCB.

What is your advice?

Thanks.

it was a common fault on Bosch dishwashers for the heater relay solder joint to fail

if your looking for the model its normally on top of the door on the silver part on an almost invisible label

Dave

[Tony Whitley]

Thanks Dave, I’ll give that a try and report back.

[Tony Whitley]

OK, no sign of any overheating joints and I didn’t know which of the 5 relays was for the heater so I went round them all and reflowed the joints. It certainly had an effect – now I get an E28 error (drain error) after a minute 🙁 Oh well, it was worth a try.

[electrofix]

on later machine they measure the pump current to determine when its empty. a very worn pump can take more current and fool it but it could just be the board

on earlier machine they use an air operated pressure switch

Dave

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