zio_mangrovia
- Aug 30, 2015
- 19
- Joined
- Aug 30, 2015
- Messages
- 19
Model 911939224-01
TT50e
When I power on my dishwasher, water is never loaded and drain pump starts immediately and never stop itself even if empty state occurs.
There is no anti-flooding system although service manual shows it but paper lists several models.
I checked directly the two pressure switch (both level and overflow) blowing in tubes, tester showed zero resistance and immediately after blow infinite resistance.
I wanted to check wiring for only level pressure switch disconnecting it from pcb, I used tester to check signal to connector with both water and no water. This worked fine.
I checked door switch was closed.
I think problem is in PCB, I call technician and He confirmed it
Then I try to desolder only the gate pin on acs108-6s (overvoltage protected AC switch, which is the triac which drives drain pump) and when I power on dishwasher, pump doesn't start.
I think if problem was about drain pump driver circuit, dishwasher should have to load water and this one never occurred.
What can you suggest me now please?
TT50e
When I power on my dishwasher, water is never loaded and drain pump starts immediately and never stop itself even if empty state occurs.
There is no anti-flooding system although service manual shows it but paper lists several models.
I checked directly the two pressure switch (both level and overflow) blowing in tubes, tester showed zero resistance and immediately after blow infinite resistance.
I wanted to check wiring for only level pressure switch disconnecting it from pcb, I used tester to check signal to connector with both water and no water. This worked fine.
I checked door switch was closed.
I think problem is in PCB, I call technician and He confirmed it
Then I try to desolder only the gate pin on acs108-6s (overvoltage protected AC switch, which is the triac which drives drain pump) and when I power on dishwasher, pump doesn't start.
I think if problem was about drain pump driver circuit, dishwasher should have to load water and this one never occurred.
What can you suggest me now please?