Bosch's own owner-support page for a dishwasher that is not drying gives three tips: leave enough space between dishware and cutlery so water can drain off, add rinse aid, and select the Sanitize or Extra Dry option. The SHXM4AY55N's troubleshooting table adds the specific causes: the rinse aid dispenser is empty or the amount is wrong, the Extra Dry heat option was not chosen, water collects in depressions on dishes, the door was opened or dishes removed before the cycle ended, plastics do not absorb heat and dry poorly, and silverware is not arranged so items do not touch.
Differential
Likely causes of “Bosch dishwasher does not dry dishes”, and how to tell them apart
- 1
The rinse aid dispenser is empty or set too low
What separates it Water beads and dries in spots and the Add Rinse Aid light is on
How to confirm Add rinse aid or adjust the amount setting, and use the Auto cycle and Sanitize option
- 2
Extra Dry or Sanitize was not selected
What separates it The final rinse is cooler and plastics stay wet
How to confirm Activate the Extra Dry heat option or Sanitize to raise the final rinse temperature
- 3
Water collected in depressions or dishes not sloped
What separates it Cups and plates hold pools of water because water collects in depressions or the dishes are not sloped
How to confirm Arrange dishes in the upper rack to slope so water can drain
- 4
The door was opened before the cycle ended
What separates it Dishes are damp because the drying phase was cut short
How to confirm Wait until the wash cycle ends before opening the door or removing dishes
Before you touch a setting
Record this first — changing settings destroys the evidence
- The cycle and options selected and the rinse aid amount
- Whether the Add Rinse Aid indicator is on
- Whether the wet items are mostly plastic
Try in this order
0 of 5 completedAdd rinse aid
ReversibleFor proper drying always use a liquid rinse aid, even if your detergent contains one. The Add Rinse Aid indicator lights when it is low; fill the dispenser until full without overfilling and close the lid until it clicks.
Set the amount
ReversibleThe rinse aid amount runs 0 to 6 with a factory setting of 5. Raise it if dishes are not drying enough; lower it if streaks remain.
Choose a drying option
ReversibleSelect Sanitize or Extra Dry, and consider the Intensive drying setting, which raises the final rinse temperature for better drying but may increase cycle time.
Load for drying
ReversibleLeave space between dishes and cutlery so water drains, slope dishes in the upper rack and arrange silverware so pieces do not touch.
Do not open early
ReversibleDo not open early, and wait until the wash cycle ends before opening the door or removing dishes.
Model-specific
What is true of this model and not of its siblings
- Rinse aid handling
- To avoid oversudsing or clogging, do not overfill the rinse aid dispenser and wipe up spills with a damp cloth; the lid must be fully closed until it clicks. The indicator light goes out a few moments after the door is shut. Using no rinse aid or setting the dispenser to 0 may result in longer cycles using more energy and water.
- Parts for this problem on the SHXM4AY55N (RepairClinic, 2026-09-21)
- snow blower v- belt, part number 256963, at $28.99.
- Other models this page answers
- These steps also fit models SHE3AEM5N, SHE53B75UC, SHS43CF5N, SHP65CM5N, SHP865WD5N, SHP78CM5N, SHX78CM5N, SHV9PCM3N.
Stop boundary
When this stops being a self-service repair
- !If dishes stay wet with rinse aid, Extra Dry and correct loading, contact Bosch Customer Support on 1-800-944-2904
- !If plastics alone stay wet, that is normal and needs no repair
Evidence ledger
Sources behind this answer
Bosch's own list of dishwasher error codes with the fixes for E15, E18, E22, E24, E25 and E27.
Bosch's own owner-support articles for a dishwasher that will not drain, will not dry or smells.
Bosch's own specification sheet for this model.
Parts and list prices as shown on RepairClinic's parts search for this model number on 2026-09-21.
Exact questions
Common questions
Why are my dishes wet?+
Rinse aid, the Extra Dry option and loading are the main factors.
What is Intensive drying?+
A menu setting that raises the final rinse temperature to improve drying; it may raise cycle time and energy use.
Do plastics dry?+
Plastics do not absorb heat like cutlery or china and do not dry as well; towel dry if needed.
What does Extra Dry do?+
It increases the temperature of the final rinse and extends the drying phase so plastics dry better.
Do I need rinse aid with combination detergents?+
Yes. Bosch says to always use liquid rinse aid, even if the detergent contains a rinse aid.
What does Sanitize do to drying?+
It increases temperatures and may improve drying; cycle time and energy may increase.
What should I do if the door opened mid-cycle?+
Close it and press On/Off to continue; the cycle is saved.
How do I fill the rinse aid?+
Open the dispenser lid, add liquid rinse aid until full without overfilling and close the lid until it clicks.