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WPM KD-310 maintenance: what the manual says

WPM’s manual lists 8 maintenance jobs for the KD-310. Each is below with how often and the sentence it comes from.

What to do, and how often

Job How often The manual’s sentence
Portafilter & basket soak Rinse after each use

“The filter baskets and portafilters should be rinsed with warm water after each use and then dried thoroughly.”
Drip tray empty & clean After each coffee making session; also at regular intervals

“Empty the drip tray and rinse.”
Group head wipe / flush After each coffee making session

“To clean the group head of any old coffee grinds cycle water through and wipe the group head and around the inside rim with a damp cloth.”
Professional service Any maintenance beyond cleaning

“For safety reasons, avoid maintenance by a non-professional.”
Steam wand purge & wipe After each use

“After using the wand, carefully clean the tube with a sponge or clean damp cloth.”
Steam wand deep clean ST CLEAN reminder at 300 steam uses; machine locks at 400 until cleaned

““ST CLEAN” will be shown by the machine when the steam wand reaches the level of 300-time-usage to remind the user to clean the steam wand.”
Group-head circuit cleaning program (CO CLEAN) When CO CLEAN shows at the preset water usage (50 / 100 / 180 L, user-set)

““CO CLEAN” will be shown by the machine when it reaches the preset water consumption level to remind the user to clean the brewing head.”

Left to a technician

Job How often The manual’s sentence
Group gasket replacement Every year

“Over time the seal will loose its elasticity and require replacement, depending on use usually every 12 months.”

The settings

Group head thermoblock temperature

Range: 86 to 98 °C.

“Group head thermoblock temperature: adjust the coffee thermoblock temperature (range: 86-98°c); press “-” or “+” to change the setting and press “ ” to save.”

Factory setting: not stated.

Step-by-step guides

What the manual does not say

7 jobs with nothing stated
  • Backflush (detergent)
  • Backflush (water)
  • Descale
  • Shower screen clean
  • Shower screen replacement
  • Water filter / softener replacement
  • Water tank clean
Notes from the research
  • Maker domain wpmcoffee.com (WPM / G.M.P. Industrial, Welhome brand) is not in the allowlist; WPM has no allowlist entry.
  • No descale procedure or interval, although the warranty excludes thermoblock scale from not using distilled water or irregular cleaning.
  • CO CLEAN is a machine-alerted group-circuit clean whose method (detergent? blind disc? descaler?) the KD-310 manual does not state; recorded as other rather than as a backflush.
  • No shower screen, water tank or filter guidance.

Sources

Researched on .

Published: the sentence is on the maker’s own page or in the maker’s own document.

Community: the maker’s text, hosted somewhere else, usually by a retailer.