Philips Coffee MachineFits: Philips LatteGo 2200/3200/4300/5400, Saeco Incanto/PicoBaristoCode: E01 / E03 / E04 / E05OEM Part: #421944093151

Philips / Saeco Coffee Machine 3 Red Lights or Error 03, 04, 05 Fix

Quick Answer: When all 3 red warning lights flash on a Philips 2200/3200 LatteGo (or Saeco displays Error 03, 04, or 05), it indicates a blocked Brew Group (#421944082931), an airlocked AquaClean water circuit (E05), or a clogged coffee funnel (E01).
⚠️ Why Your Philips LatteGo Dumps Dry Coffee Powder Into the Tray: When the large red O-ring seal on top of the Brew Group piston (#996530059406) dries out or shrinks, water leaks around the piston instead of pushing through the coffee puck—triggering 3 flashing red lights!

#1 Most Common Fix: Philips / Saeco Brew Group O-Ring & Silicone Grease Maintenance Kit

Official OEM Part Number: #421944093151
⏱️ Install Time: 5 Minutes  |  💰 Avg Cost: $12.99 – $18.99
Buy Part #421944093151 on Amazon →Fast Prime Delivery • Exact OEM Fit

Step 1: Free 2-Minute Reset & Test

  1. For Error 05 (Air in Water Circuit): Remove the AquaClean filter from the water tank, submerge the filter upside-down in a bowl of water for 30 seconds until all bubbles escape, then dispense a cup of hot water without the filter installed.
  2. For Error 03 / 04 (3 Flashing Lights): Open the right-side service door, press the PUSH handle to slide out the Brew Group, rinse it under lukewarm water, and apply food-grade silicone grease (#HD5061) to the piston rails.

Step 2: Symptom & Part Number Lookup Table

SymptomRequired OEM PartDifficulty & CostAction
Water leaks into drip tray, weak coffee, or Brew Group squeaks and triggers Error 03/04
Cause: Worn piston O-ring gaskets and dry rails
Philips / Saeco Gasket O-Ring & Grease Service Kit
#HD5061-Kit
Very Easy DIY (5 min)
Est: $14.99
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Plastic locking hook or valve on the Brew Group is cracked (Error 03 / 04)
Cause: Damaged 8g Brew Group Unit
Philips / Saeco Complete Brew Group Assembly
#421944082931
5-Second Slide-In
Est: $58.00
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AquaClean light flashes orange/red or water flow slows to a trickle (Error 05)
Cause: Clogged AquaClean Micro-Pore Water Filter
Philips OEM AquaClean Filter (#CA6903/10)
#CA6903
1-Minute Drop-In
Est: $22.99
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Frequently Asked Questions

What do the 3 blinking red lights mean on a Philips 2200 or 3200 Series?
When all 3 red alarm LEDs blink simultaneously, the brew group (#421944082931) is either not locked in until it clicks, or the piston is experiencing too much friction and needs O-ring lubrication (#HD5061).

Other Popular Error Codes

Bosch E15 (#12005744)Bosch E24 (#00631200)Samsung 4C / 4E (#DC62-30314K)Samsung 5C / 5E / ND (#DC31-00054A)LG OE (#4681EA2001T)LG IE (#5220FR2075L)Whirlpool F21 / F02 (#W10130913)Bosch E18 (#00628334)Whirlpool F7 E1 / F7E1 (#W10913953)GE H20 (#WD21X25468)Bosch E22 (#00645038)Bosch E09 (#12008381)LG LE (#6501KW2002A)LG UE / uE (#383EER3001G)Samsung DC / dE (#DC64-00519D)Whirlpool F5 E2 / F5 E1 (#W11307244)Samsung LC / LE (#DD82-01111A)Frigidaire SY EF (#242077705)Bosch E25 (#00631200)LG CL (#EBF61315802)Samsung 88 88 / Ice Off (#DA97-15217D)Whirlpool E FF / EFF (#W10124096)Whirlpool F01 (#W10525354)GE CC (#WR55X30626)Samsung ND (#DC31-00054A)LG IE (#5220DD1001S)Whirlpool F6 E4 (#W10463040)Bosch E19 (#00620774)Samsung 76 E / 76_E (#DA96-01031G)GE LDS / Lid (#WH01X27956)LG d80 / d90 / d95 (#6323EL2001B)Samsung HE / tE / hE (#DC97-14486A)Whirlpool F01 / F1 E1 / Thermal Fuse (#WP3392519)Whirlpool AF / F4 E3 (#WP8577274)Whirlpool F3 E0 / F2 E1 (#WPW10181986)GE F2 / F3 / No Heat (#WB13K21)Samsung C-20 / SE / 5E (#DG94-00520A)LG Er IF / Er FF (#EAU63923603)Miele F11 (#5750095)Miele F70 / Waterproof (#6195751)Electrolux E10 / E20 / E21 (#137221600)Frigidaire i20 / i30 (#5304504077)KitchenAid F9 E1 / F8 E4 (#W10876537)Samsung Ub / UE / E4 (#DC97-16350U)LG tE1 / tE2 / nP (#6323EL2001B)Dyson Flashing Red Light (#215681-Battery)Dyson Filter Light / Pulsing (#969082-01)DeLonghi Red Triangle / General Alarm (#7313251451)Maytag F6 E2 / F6 E3 (#W11116590)Whirlpool LF / LO FL / F8 E1 (#W11210459)Whirlpool Sud / Sd / 5d / F02 (#W10130913)Samsung 3C / 3E / 3E1 / 3E2 (#DC31-00098A)LG dE / dE1 / dE2 (#EBF61315802)LG FE (#5220FR2075L)LG PE (#6501EA1001R)Bosch E01 / E02 / E04 (#12009511)Beko E01 / E02 (#1760900100)Hotpoint F05 / F06 (#C00145315)GE E22 / E23 / E31 (#WH23X28418)