Solved

iDos dispenser always low

RERenoir
Asked almost 6 years ago 7,325 views
0

VarioPerfect Serie 8. IDos dispenser is showing low detergent all the time. Even after filling up to max. It began so after I accidentally dropped too much detergent for the drum clean cycle. Foam was coming out of the drawer. Is that the dispenser fried or anything else? Or could it be reset somehow?

Solution Summary

AI-generated from this discussion

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Bosch/Siemens Serie 8 i-Dos detergent level always shows low

The problem
On a VarioPerfect Serie 8 washing machine, the i-Dos detergent dispenser shows low detergent continuously even when filled to maximum. The issue started after an over-foaming drum-clean cycle where foam came out of the drawer. All other machine functions were reported as normal, and the adjacent softener level indicator still worked.
Likely cause
The strongest supported diagnosis is a fault affecting the detergent level sensing for that i-Dos container, possibly due to foam or water getting into an area it should not have during the overflow incident. The exact failed component was not confirmed.
What fixed it
No confirmed repair or reset was provided in the discussion. The thread supports diagnosis of a detergent level sensing issue rather than a general dispenser failure. Further diagnosis should be carried out by a suitably qualified appliance engineer.
Checks to try
  • Detergent tank filled to maximum but low-level warning remained on
  • Problem began after excessive detergent caused foam to come out of the drawer during a drum-clean cycle
  • Softener compartment level indicator next to it was reported to still work

Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.

Cause identifiedGenerated 18 Aug 2026 · AI summaries can make mistakes — read the full thread below.
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2 Answers

Accepted Answer
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WH
WhitegoodshelpVerified Engineer
Answered almost 6 years ago

Has the foam gone away now? It's possible something was affected by foam (and therefore water) getting into somewhere it shouldn't. But I would expect the sensors for determining how much detergent is inside the detergent containers would be on the containers themselves.

Whitegoods Help — appliance repair expert and forum host.
0
RE
Renoir
Answered almost 6 years ago

The foam incident occurred about two years ago. I just get annoyed from time to time still that it’s not working. Everything else seems to be working. Even the level indicator for the softener compartment which is right next to it. There are two metal rods that touch liquid and by that make a chain (or whatever it’s called correctly) which means there is enough liquid in the compartment. When the liquid level drops and the two rods are in the air it signals a low level. At least that’s what I understand.

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