- Heat pumps
- Pool heat pump
EE02
AstralPool EE02 on pool heat pump: low pressure failure
Risk level
High
Professional inspection is recommended.
Urgency
Medium
Quick answer
On the AstralPool APH3 Inverboost, EE02 means a low pressure failure (TS5) in the refrigerant circuit. Check the fan is not blocked, note when it appears and call a technician licensed for R32.
Safety first
Stop and check this first
- This heat pump uses R32. AstralPool forbids smoking or flames near the unit and requires gas charging by a professional licensed for R32.
- Do not release R32 into the atmosphere: AstralPool notes it is a fluorinated greenhouse gas. Ask for the recovered and added quantities in writing.
Safe checks you can perform
- Fan and coil unobstructed
- Logging the alert
- Unit off until inspected
Leave these tasks to a qualified professional
- Do not attempt this professional task: Reading pressure and finding the leak
- Do not attempt this professional task: Checking EEV, fan and low 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.
Reading pressure and finding the leak
What they doA technician licensed for R32 reads the pressure on the unit's gauge, compares it with the manual table for those temperatures and, if low, finds the leak before pulling a vacuum and recharging.
They must show youthe pressure read against the manufacturer table and the leak point found.
In writingthe leak repaired, gas added and the technician's licence number.
Checking EEV, fan and low pressure switch
What they doWith the unit isolated, the technician checks the electronic expansion valve and the circuit, tests the fan in heating mode and reconnects or replaces the low pressure switch.
They must show youthe test of each component and the unit running without EE02.
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.
Fan and coil unobstructed
- Who:
- you, without opening the unit and with the power cut.
- How:
- check from outside that nothing blocks the grille or finned coil: leaves, a cover left on 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 EE02 returns.
- If it is clear:
- the cause is inside the unit.
- Evidence to keep:
- photo of the grille and coil.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Logging the alert
- Who:
- you, from the controller.
- How:
- note the date, time, mode (heating or cooling) and the water temperature on the display when EE02 appears. AstralPool links the fan fault to heating mode.
- Result that matters:
- a record the technician can compare with the pressures they measure.
- If it always appears in heating mode:
- tell the technician, it helps check the fan.
- If it appears in any mode:
- it strengthens the suspicion of the circuit or the switch.
- Evidence to keep:
- photo of the display with the code and temperature.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Unit off until inspected
- Who:
- you.
- How:
- if EE02 returns after a normal off and on, leave the unit off from the controller. AstralPool reserves any work on circuit pressure for a qualified technician.
- Result that matters:
- not forcing the compressor at low pressure.
- If it does not return after a restart:
- keep the log; if it repeats, tell the technician.
- If it returns:
- call the technician and stop restarting it.
- Evidence to keep:
- how many times it appeared and the dates.
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 EE02
- AstralPool EE02
- AstralPool fallo baja presión
- AstralPool Heat EE02
- AstralPool heat pump low pressure
- AstralPool low pressure failure
- bomba de calor AstralPool baja presión
- E02
- EE02
What it means
EE02 is the low pressure failure (TS5) of the R32 refrigerant circuit. AstralPool gives four causes: a blocked electronic expansion valve (EEV) or jammed pipework, a fan abnormal or damaged in heating mode, a gas leak and a loose or damaged low pressure switch wire. None can be fixed from outside. A leak is only confirmed with the unit's pressure gauge and by finding the leak point. So the code alone does not prove missing gas or a broken pressure switch.
Warnings and stop conditions
- Highsource verified
This heat pump uses R32. AstralPool forbids smoking or flames near the unit and requires gas charging by a professional licensed for R32.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Mediumsource verified
Do not release R32 into the atmosphere: AstralPool notes it is a fluorinated greenhouse gas. Ask for the recovered and added quantities in writing.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Symptoms and causes
Probable causes · in order
- Gas leakPossible
The R32 charge is low; it stands out because the measured pressure is low and there is a leak point, not just because of the code.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Abnormal fan in heating modePossible
In heating mode the fan runs badly or is damaged, the coil cannot draw heat from the air and suction pressure drops.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Blocked EEV or jammed pipeworkPossible
The electronic expansion valve or a pipe does not let refrigerant through; confirmed by checking the EEV and the circuit.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
- Loose or damaged low pressure switch wirePossible
The switch alarms without real low pressure; confirmed by comparing its operation with the measured pressure.
Evidence: AstralPool APH3 Inverboost (R32) swimming pool heat pump: user and service manual
Virtual technician
Does EE02 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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