La Spaziale · 2 and 3 group
La Spaziale S50 Performance — PSSR examination & servicing
S50 Performance machines are used in high-volume cafés, contract catering and hotel operations nationwide. The engineer carries out the statutory PSSR examination, the front-end service and the water treatment on this model — a standalone examination is £295 + VAT, or £500 + VAT with the service included.
Quick answer
Does a La Spaziale S50 Performance need a PSSR examination?
Yes, if it operates in a workplace. It carries a single steam boiler with its own protective devices, which is the pressure system in scope. Steam is a relevant fluid under PSSR 2000 and steam systems are covered at any pressure and any volume, so the boiler must have a Written Scheme of Examination and be examined periodically by a competent person.
- Examination only
- £295
- With service
- £500
The machine
Why the S50 Performance matters to the La Spaziale owner
La Spaziale's current high-volume flagship, on a deeper chassis than the S5 for bigger boilers and more working room.
In practice you will find it in high-volume cafés, contract catering and hotel operations — which shapes what the examination looks like on site: how the machine is accessed, how long it can be offline, and how much scale it has accumulated.
On the day
- The steam boiler is drained and inspected internally with an endoscope for scale, corrosion and weld condition.
- The safety valve, anti-vac valve and fittings are checked and tested.
- The pressure gauge is verified against our calibrated test gauge, not against itself.
- A 3 group boiler holds more water than a 2 group, so the drain, refill and heat-up all take longer — allow the full appointment window.
- The Written Scheme of Examination names the vessel and the protective devices it covers.
Typical rates for this model
- Standalone PSSR examination
- £295
- Service + PSSR bundle
- £500
- Certified safety valve, if it fails
- £35 + VAT
- Water filter, fitted on a visit
- from £107
- Grinder calibration & deep clean
- £89
- If it does not pass
- Explained in writing
All prices exclude VAT. The additional drain and heat-up time a 3 group boiler needs. We confirm the exact figure on the call.
Filters are fitted on site by an engineer and are not posted out. The filter price applies when ordered with a PSSR examination, service, call-out or water test; booked alone it is charged at the standard call-out.
What we see on this model
- A larger chassis than the S5 means better access to the boiler and fittings, which shortens the examination relative to its size.
- Single boiler with heat-exchange groups, so one pressure vessel and one set of protective devices to examine.
- The S50 regulates on an electronic boiler pressure sensor plus a PT1000 probe — not a mechanical pressurestat — and manages boiler elements independently; the boiler is insulated and pump pressure is shown on a digital gauge. Block alarms disable all functions; the pump-pressure and sensor alarms do not. Part numbers beyond 12732 are not published publicly (dealer catalogue).
Verified boiler data
What is actually inside this machine
| Configuration | Steam boiler |
|---|---|
| 2 group | 10.0 L |
Manufacturer's published boiler capacities. Where a maker publishes no figure we say so rather than estimate.
Service interval. Daily: replace boiler water with the boiler-washing function and clean the groups. Every 3 days: remove the shower heads and brush them clean. La Spaziale sets no calendar interval; softener regeneration follows the filter manufacturer, and
Source: La Spaziale official product page, S50 Performance technical specifications
Fault finder
What actually goes wrong on a La Spaziale S50 Performance
Owners usually call us with a symptom, not a diagnosis. This is what that symptom most often turns out to be on this machine, and what putting it right involves.
| Symptom | Usual cause | What fixes it |
|---|---|---|
| Machine blocks out with a thermoregulation alarm | 'block' alarm: faulty thermoregulation when BOTH the pressure transducer and the temperature probe have failed | replace both transducer and probe. |
| Machine blocks out with no water pressure | block alarm for no water pressure (0 bar) | restore supply/pump pressure. |
| Machine blocks out, boiler cold | block alarm: boiler below 80 deg C after 15 minutes | element, contactor or probe. |
| Machine blocks out, no control power | block alarm: 24 VAC transformer secondary at 0 V | replace the transformer. |
| Dosing fails but the machine keeps running | no-block alarm 'FAILED FLOW METER DOSING' - the flow meter has failed but the machine flags it rather than halting | replace/clean the flowmeter and recalibrate doses. |
| Pressure is wrong but the machine keeps running | no-block alarms: pump pressure at or below 6 bar or at or above 12 bar after 5 seconds, also boiler pressure sensor faulty (machine falls back to the PT1000), group serial comms failure, and pressure-profiling valve driver defect | read the log to identify which, then address pump/pressure or the profiling driver. |
| Machine blocks with 'faulty thermoregulation'. | Both the boiler pressure transducer and the boiler temperature sensor have failed. | Replace both sensors; all machine functions are disabled until then. |
| Machine blocks with 'no water pressure'. | Water-mains pressure sensor reads 0 bar — supply off, filter blocked, or sensor failed. Self-resets after 3 seconds above 0 bar. | Restore supply and check the inlet filter; if pressure is present at the gauge, replace the sensor. |
| Machine blocks; boiler stays cold. | Boiler temperature sensor has not reached 80 °C fifteen minutes after switch-on — element, relay/SSR, probe or no water. | Test the heating chain: element, contactor/SSR, probe and boiler level. |
| Machine blocks; no solenoid valve operates. | 24 VAC at the EV solenoids is 0 V for 3 seconds — failed transformer, fuse or loom. | Check the transformer secondary and its fuse/loom; replace the transformer if dead. |
| Machine keeps running but doses or pressure are wrong; alarm in the log. | Non-blocking alarms: failed flowmeter dosing, pump pressure ≤6 bar or ≥12 bar five seconds into delivery, boiler pressure sensor faulty (falls back to PT1000), group serial communication failed, or pressure-profiling driver/motorised valve defective. | Read the log to identify which alarm, then address flowmeter/connector, pump and expansion valve, sensor, group loom or profiling valve driver. |
These are faults documented for this model, not a generic list.
Common parts
Common parts for the La Spaziale S50 Performance
The components most often replaced on this machine, listed by reference number, as a reference for engineers and owners identifying a part.
| Part no. | Description |
|---|---|
| #2102 | Parker 3 Way Grp Solenoid Valve 24v (Plus 3 housings in) |
| #2841 | Element Protection Thermostat - Original |
| #0398 | Lucifer 3 Way Grp Solenoid Valve 230v (Ruby) |
| #18281 | Parker 3 Way Solenoid Valve 24v |
| #0450 | PARKER 3 WAY GRP SOLENOID VALVE 230V (RUBY) |
| #23371 | PARKER 2 WAY INLET SOLENOID VALVE 230V |
| #29950 | PARKER 3 WAY SOLENOID VALVE 24V |
| #0020 | Pump Head Rotoflow |
| #0093 | Sirai Pressure Switch |
| #1497 | Parker Pressure Switch |
| #1578 | Solenoid O Rings Bag Of 100 |
| #1586 | Shower Plate 52 X 5mm |
Parts most often needed on this model
| Part | Number | What it fixes |
|---|---|---|
| Complete filter extraction tool (optional) | 12732 | The only part number La Spaziale publishes in the S50 manual; makes removing the shower screens for the 3-day clean practical. |
| Shower head set (small + large) | — | Removed and brushed every 3 days; scale and coffee oil are the routine wear. |
| Boiler pressure sensor | — | Drives thermoregulation; when it fails the machine falls back to the PT1000 and logs an alarm. |
| PT1000 boiler temperature probe | — | The other half of the 'faulty thermoregulation' pair. |
| Flowmeter | — | Source of the 'FAILED FLOW METER DOSING' alarm and drifting doses. |
| Water-mains pressure sensor | — | A 0 bar reading blocks the whole machine; the sensor itself can be the fault. |
Questions
S50 Performance questions, answered
How a boiler of this size is examined, how often, and who carries the duty — see the complete PSSR guide.
0208 037 9340
How much does a PSSR examination cost on a La Spaziale S50 Performance?
A standalone examination is £295 + VAT, because the additional drain and heat-up time a 3 group boiler needs. Combined with a front-end service it is £500 + VAT, which is what most high-volume cafés, contract catering and hotel operations choose, since the boiler has to be drained for the examination either way. We confirm the exact figure on the call.
How often does a La Spaziale S50 Performance need examining?
The Written Scheme of Examination sets the interval, and for a commercial machine used in high-volume cafés, contract catering and hotel operations it is typically 12 to 14 months. A 3 group boiler holds a larger volume of water, so scale accumulates faster than in a smaller machine on the same duty and the scheme usually sets the shorter interval.
How long does a La Spaziale S50 Performance examination take, and what happens on the day?
A 3 group boiler holds more water than a 2 group, so the drain, refill and heat-up all take longer — allow the full appointment window. The visit runs: the steam boiler is drained and inspected internally with an endoscope for scale, corrosion and weld condition. the safety valve, anti-vac valve and fittings are checked and tested. The gauge is then verified against our calibrated test gauge, the system is pressure tested and held, and the machine is re-assembled, refilled, heated and function tested. The Written Scheme of Examination, signed report and asset record follow within 48 hours.
Other La Spaziale machines covered
Call and we'll price your S50 Performance on the spot.
Same-week appointments nationwide, the Written Scheme of Examination issued within 48 hours of the visit, and a fixed price agreed before we travel.