- Heat pumps
- Pool heat pump
EE01
AstralPool EE01 on pool heat pump: high pressure failure
Risk level
High
Professional inspection is recommended.
Urgency
Medium
Quick answer
On the AstralPool APH3 Inverboost, EE01 means a high pressure failure (TS4) in the refrigerant circuit. Check water flow and the filter pump first; refrigerant, fan and pressure switch are technician work.
Safety first
Stop and check this first
- This heat pump uses R32. AstralPool requires gas charging by a professional licensed for R32 and forbids smoking or flames near the unit.
- Water and electricity: always cut the power before opening the cabinet, as AstralPool says. Only a qualified technician may work on circuit pressure.
Safe checks you can perform
- Filter pump and water flow
- Operating mode and temperatures
- Fan and coil unobstructed
Leave these tasks to a qualified professional
- Do not attempt this professional task: Measuring pressures with gauges
- Do not attempt this professional task: Testing the fan and high pressure switch
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Measuring pressures with gauges
What they doA technician licensed for R32 reads circuit pressures, compares them with the pressure table in the manual for the current air and water temperature and looks for blockages or overcharge.
They must show youthe pressures read against the manufacturer table for those temperatures.
In writingthe measured pressure, gas recovered or added and the technician's licence number.
Testing the fan and high pressure switch
What they doWith the unit isolated, the technician checks the fan motor, the high pressure switch wire and its operation, and replaces the failing part.
They must show youthe fan running at speed and the switch tested.
In writingwhich part failed, how it was tested and its part number.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Filter pump and water flow
- Who:
- you, no tools.
- How:
- check that the filter pump runs, water returns to the pool and the filter is clean. AstralPool asks you to check water flow or the filtration pump for EE01.
- Result that matters:
- normal flow and a clean filter.
- If flow was low:
- fix it and watch whether EE01 returns.
- If flow is normal:
- check mode and temperatures.
- Evidence to keep:
- filter gauge reading and time of the alert.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Operating mode and temperatures
- Who:
- you, from the controller.
- How:
- check whether the unit was heating or cooling and note the water temperature on the display. If it is very hot outside, AstralPool suggests choosing silent mode.
- Result that matters:
- knowing whether EE01 matches hot weather, very warm water or cooling mode.
- If it appears in cooling mode:
- tell the technician, it points to the fan.
- If it appears while heating with normal flow and moderate temperatures:
- it points to the refrigerant circuit.
- Evidence to keep:
- photo of the display with mode and temperature.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Fan and coil unobstructed
- Who:
- you, without opening the unit and with the power cut.
- How:
- check from outside that nothing blocks the fan grille or the finned coil: leaves, covers or plants. Do not put hands or objects into the fan.
- Result that matters:
- free air inlet and outlet.
- If something was blocking it:
- remove it and watch whether EE01 returns.
- If it is clear:
- the fan and circuit are for the technician.
- Evidence to keep:
- photo of the front and grille.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Heat pumps
- Brand
- AstralPool
- Product type
- Pool heat pump
Known code variants
- APH3 Inverboost EE01
- AstralPool EE01
- AstralPool fallo alta presión
- AstralPool Heat EE01
- AstralPool heat pump high pressure
- AstralPool high pressure failure
- bomba de calor AstralPool alta presión
- E01
- EE01
What it means
EE01 is the high pressure failure (TS4) of the R32 refrigerant circuit. AstralPool gives seven causes: ambient temperature too high, water too hot, water flow too low, fan abnormal or damaged in cooling mode, a jammed gas system, a loose or damaged high pressure switch wire and too much refrigerant. Only flow and temperature can be observed from outside; the rest requires opening the unit. So the code does not prove excess gas or a broken pressure switch.
Warnings and stop conditions
- Highsource verified
This heat pump uses R32. AstralPool requires gas charging by a professional licensed for R32 and forbids smoking or flames near the unit.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Highsource verified
Water and electricity: always cut the power before opening the cabinet, as AstralPool says. Only a qualified technician may work on circuit pressure.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Symptoms and causes
Probable causes · in order
- Water flow too lowCommon
With too little water, heat is not carried away and pressure rises in heating mode; it stands out because the filter pump, filter or valves show a problem.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Ambient or water too hotPossible
The unit runs with air or water hotter than expected; AstralPool suggests choosing silent mode and checking flow.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Abnormal fan in cooling modePossible
In cooling mode the fan runs badly or is damaged and the coil cannot reject heat; only relevant if the alert appears while cooling.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Jammed gas system or excess refrigerantPossible
There is a blockage in the circuit or the R32 charge is too high; only confirmed with gauges and fixed by a refrigeration technician.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Loose or damaged high pressure switch wirePossible
The switch alarms without real high pressure; confirmed by checking its wire or replacing the switch after testing it.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Virtual technician
Does EE01 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Fluidra (AstralPool) · 2021 · official_doc
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