Discontinued by its maker. We keep its water requirements here for owners.
Maker specs · Espresso machines
Philips
5400 Series LatteGo EP5447/94
Boiler
Not listed
Brew boiler
Not listed
Steam boiler
Not listed
Water tank
1.8 L
Maker
Philips
Boiler
Not listed
Brew boiler
Not listed
Steam boiler
Not listed
Water tank
1.8 L
Plumb-in
Not listed
Voltage (US)
Not listed
Maker's water filter
AquaClean
What water does this machine require?
Philips hasn't published a limit our check can use for this machine yet, so the check can't give it a result. Whatever the maker does say is quoted below.
Will my water work with this machine?
Add your water from a test strip, a report or your city's numbers, and we'll check it against the maker's limits above. It stays in this browser.
What the maker says this machine needs from its water. This is machine care, not drinking-water advice.
From Philips's guidance for this model.
Hardness setting
“We advise you to adjust the water hardness setting to the water hardness level in your region for optimal performance and a longer lifetime of the machine.”
Philips 4300 Series / 5400 Series user manual, NAM+LATAM edition (PDF title "CO_2025_4300 Series_5400 Series_Manual Philips_NAM+LATAM"), linked from the en_US catalog for EP4347/94 and EP5447/94. Source (opens in a new tab), saved October 29, 2026.
Hardness setting
“The default water hardness setting is 4: hard water.”
Philips 4300 Series / 5400 Series user manual, NAM+LATAM edition (PDF title "CO_2025_4300 Series_5400 Series_Manual Philips_NAM+LATAM"), linked from the en_US catalog for EP4347/94 and EP5447/94. Source (opens in a new tab), saved October 29, 2026.
Water filter
“You can place the AquaClean water filter in the water tank to preserve the taste of your coffee.”
Philips 4300 Series / 5400 Series user manual, NAM+LATAM edition (PDF title "CO_2025_4300 Series_5400 Series_Manual Philips_NAM+LATAM"), linked from the en_US catalog for EP4347/94 and EP5447/94. Source (opens in a new tab), saved October 29, 2026.
Water filter
“It also diminishes the need for descaling by reducing limescale build-up in your machine.”
Philips 4300 Series / 5400 Series user manual, NAM+LATAM edition (PDF title "CO_2025_4300 Series_5400 Series_Manual Philips_NAM+LATAM"), linked from the en_US catalog for EP4347/94 and EP5447/94. Source (opens in a new tab), saved October 29, 2026.
Descaler
“Under no circumstances should you use a descaler based on sulfuric acid, hydrochloric acid, sulfamic or acetic acid (vinegar) as this may damage the water circuit in your machine and not dissolve the limescale properly.”
Philips 4300 Series / 5400 Series user manual, NAM+LATAM edition (PDF title "CO_2025_4300 Series_5400 Series_Manual Philips_NAM+LATAM"), linked from the en_US catalog for EP4347/94 and EP5447/94. Source (opens in a new tab), saved October 29, 2026.
