When your Sebo X series vacuum develops an electronic fault, diagnosing which PCB board has failed can be difficult without specialist equipment. Red warning lights that stay on, intermittent operation, or complete failure to initialise are common symptoms of PCB failure. This guide explains which replacement boards fit your machine and why replacing both boards together often gives the most reliable repair.
Which Sebo Models Use These PCB Boards?
The control boards we are discussing today fit the following Sebo models:
- Sebo Automatic X1
- Sebo Automatic X1.1
- Sebo Automatic X4 (including Eco and Pet models with the “Boost” button)
- Sebo Automatic X5
- Sebo XP1, XP2 and XP3
Important: These boards do not fit the Sebo X7, X8, XP10, XP20 or XP30 models. Those machines use a different PCB system.
Understanding Sebo X Series Electronic PCB Faults
The Sebo X series uses two separate PCB boards that work together:
The Main Control Board handles the warning lights, sensor logic, and system diagnostics. This is marked as NPPSTXSM-2 (early type, part number 5740ER) or NPPSTXSNM-3 (late type, part number 5849ER).
The Power Supply Board manages primary power distribution to the motor and other components. Early versions are marked 5195, 5106 or 5913 (NPPSTXPM-5), while late “Eco” versions are marked 5847ER (NPPSTXPNM-6).
Common PCB Fault Symptoms
- Red warning lights remain illuminated constantly
- Machine fails to power on or initialise properly
- Intermittent operation or random shutdowns
- Visible damage to components on the power board (burn marks, blown capacitors)
Before diagnosing a PCB fault, you should have already eliminated other common causes such as a faulty motor, servo height adjustment motor failure, damaged cables, or wiring loom issues.
Why Replace Both Sebo Vacuum PCB Boards Together?
PCB diagnosis is notoriously difficult, even for experienced repairers. The two boards work as a matched system, and when one fails, the other is often already stressed. Here’s why replacing both boards at once makes sense:
- Avoid Repeat Failures: If one board has failed due to a short circuit or component failure, fitting a new board alongside the old stressed board can result in the new board being damaged immediately.
- Eliminate Guesswork: Without diagnostic equipment, pinpointing which of the two boards has failed is extremely difficult. Replacing both removes the uncertainty.
- Prevent Multiple Strip-Downs: The labour involved in accessing these boards means you don’t want to do the job twice. Replacing both boards together avoids having to strip the machine down again in a few weeks.
- Boards Must Match: Early and late type boards are not interchangeable. You cannot fit an early main board with a late power board. They must be replaced like-for-like, or both upgraded together to the later type.
Recommended Solution: The Sebo X1/X4/X5 PCB Pair (5847ER & 5849ER)
For most customers, the simplest and most reliable approach is to fit both late-type boards together as a pair. This matched set includes:
- Power Supply PCB 5847ER (NPPSTXPNM-6)
- Main Control PCB 5849ER (NPPSTXSNM-3)
This combination eliminates diagnosis difficulties, ensures compatibility, and provides the best chance of a successful long-term repair. The control boards we are discussing today will replace any earlier board types fitted to X1, X1.1, X4, X5 or XP1/2/3 machines, provided both are changed together.
The Exception: Sebo Early Power Supply Boards (5195, 5106, 5913)
There is one notable exception to the “replace both boards” rule. The early type power supply boards marked 5195, 5106 or 5913 (NPPSTXPM-5) are extremely well-engineered and very seldom fail. When they do fail, the fault is usually visible: you’ll see burn marks, blown components, or obvious damage.
-500x500.jpg "Power Supply Boards (5195, 5106, 5913)")
Because these failures are easy to diagnose visually and the boards are very reliable, we offer tested recycled versions at a much lower cost than new boards. If you can clearly see that your early power board has failed, replacing just that board is a cost-effective option.
However, for the late-type boards or when the fault is not visually obvious, replacing both boards remains the recommended approach.
Sebo PCB Important Compatibility Notes
PCB Types Are Not Mix-and-Match
You cannot mix and match early and late PCB boards. The boards work as matched pairs:
- Early main board (5740ER) must pair with early power board (5195/5106/5913)
- Late main board (5849ER) must pair with late power board (5847ER)
If you want to upgrade from early to late boards, both must be changed at the same time.
XP Series Compatibility
The PCB boards covered in this guide fit XP1, XP2 and XP3 models only. They do not fit XP10, XP20 or XP30 machines, which use an entirely different control system.
X7 and X8 Models
Sebo X7 and X8 models use a different PCB system and are not compatible with the boards described here.
Sebo PCB Individual Replacement Boards
If you’re confident in your diagnosis or have visibly identified which board has failed, individual replacement boards are available:
Late Type Main Control Board 5849ER (NPPSTXSNM-3) – Controls warning lights and sensor logic for late-type Eco machines.
Late Type Power Board 5847ER (NPPSTXPNM-6) – Handles power distribution for late-type Eco X4, X4 Pet, and X5 machines.
Early Type Main Control Board 5740ER (NPPSTXSM-2) – For earlier X1, X1.1, X4 and X5 machines. Must be paired with early type power board.
Early Type Power Board 5195/5106/5913 (NPPSTXPM-5) – Extremely reliable board that rarely fails. When it does, failure is usually visibly obvious.
Making the Right Choice
For the typical home DIYer faced with an electronic fault:
- First choice: Fit the complete PCB pair (5847ER & 5849ER) to eliminate diagnosis uncertainty
- Exception: If you have an early power board (5195/5106/5913) with visible damage, replace just that board (don’t be concerned about using a recycled one, they are bulletproof)
Remember, all PCB boards are non-returnable parts. Once received, they cannot be returned, regardless of whether they fix your fault. If you’re uncertain about the diagnosis, consider using our national repair service.
By understanding the PCB board compatibility and replacement options for your Sebo X series vacuum, you can make an informed decision that gives you the best chance of a reliable, long-term repair.
The Fastest Solution for Your Sebo PCB Problems
If you have a Sebo X1, X1.1, X4, X5, XP1, XP2 or XP3 and want the fastest and most pain-free way to fix your PCB woes, you want these two boards: