How to resolve 'Inv. Temp. Probe Fail' on my Astralpool 78542 Heat Pump?
- CCarrie SolomonSep 18, 2025
If your Astralpool Heat Pump displays 'Inv. Temp. Probe Fail', the sensor is either short circuit or open circuit. Inspect and replace the sensor.
How to resolve 'Inv. Temp. Probe Fail' on my Astralpool 78542 Heat Pump?
If your Astralpool Heat Pump displays 'Inv. Temp. Probe Fail', the sensor is either short circuit or open circuit. Inspect and replace the sensor.
Why does my Astralpool 78542 display 'High Pressure Prot.'?
If your Astralpool Heat Pump is showing 'High Pressure Prot.', it means the high-pressure switch might be faulty. You should check both the pressure switch and the cold circuit to troubleshoot the issue.
What does 'Low Pressure Prot.' mean on my Astralpool Heat Pump?
If your Astralpool Heat Pump displays 'Low Pressure Prot.', this indicates a low-pressure protection issue. You should check the pressure switch and the cold circuit to resolve this problem.
How to fix 'Communication Fault' on my Astralpool 78542?
If your Astralpool Heat Pump displays 'Communication Fault', there may be a communication issue between the wire controller and the mainboard. Check the wire connection between the remote wire controller and the main board to resolve this.
What does 'EEPROM Error Warn' mean on my Astralpool Heat Pump?
If your Astralpool Heat Pump displays 'EEPROM Error Warn', it indicates an MCU error. Check whether the chip is damaged and replace it if necessary.
What causes 'V15V over/undervoltage fault' on my Astralpool 78542 Heat Pump?
If your Astralpool Heat Pump displays 'V15V over/undervoltage fault', it indicates that the V15V is overloaded or undervoltage. Check if the V15V input voltage is in the range of 13.5v~16.5v.
How to fix 'Antifreeze Temp. Sensor Fault' on my Astralpool 78542 Heat Pump?
If your Astralpool Heat Pump displays 'Antifreeze Temp. Sensor Fault', the antifreeze temperature sensor is likely broken or short-circuited. Check and replace this temperature sensor.
What to do if my Astralpool Heat Pump displays 'nlet Temp. Sensor Fault'?
If your Astralpool Heat Pump shows 'nlet Temp. Sensor Fault', the temperature sensor is either broken or short-circuited. You should check or change the temperature sensor.
What causes 'Inverter Overheating' on my Astralpool 78542 Heat Pump?
If your Astralpool Heat Pump displays 'Inverter Overheating', it indicates that the transducer is overheating. Check and adjust the current measurement to resolve this.
What to do if my Astralpool 78542 Heat Pump warns 'Input Over Cur. Warn'?
If your Astralpool Heat Pump displays 'Input Over Cur. Warn', it indicates that the input current is too large. Check and adjust the current measurement to resolve this.
Diagram showing the connection of the heat pump within the filtration circuit.
Guidance on selecting an optimal outdoor location, clearance requirements, and proximity to the pool.
Instructions for connecting the heat pump to the pool's water circulation system using PVC pipe.
Steps for safe electrical connection, initial startup, and noise considerations for the heat pump.
Detailed tables of heating capacity, power input, current, and other operational parameters for various models.
Diagrams and measurements for the physical size of the heat pump units.
Overview of the wire controller's main interface and the function of each button.
Procedures for unit startup/shutdown, mode switching, and target temperature adjustment.
Instructions for setting the current time and configuring the heat pump's timing schedule.
How to activate silent mode, manage timing silent functions, and access fault history.
Display of temperature/power curves and list of adjustable operating parameters.
Tables for electronic and frequency conversion board faults, plus wire control interface definitions.
Guidance on regular checks for water supply, filter cleaning, ventilation, and unit condition.
Important safety precautions and general warnings for unit operation and installation.
Recommended cable types, sizes, and protection for single and three-phase units.
Details on warranty periods, claim procedures, and required documentation.
Conditions that void the warranty and limitations on AstralPool's liability.
Diagram showing the connection of the heat pump within the filtration circuit.
Guidance on selecting an optimal outdoor location, clearance requirements, and proximity to the pool.
Instructions for connecting the heat pump to the pool's water circulation system using PVC pipe.
Steps for safe electrical connection, initial startup, and noise considerations for the heat pump.
Detailed tables of heating capacity, power input, current, and other operational parameters for various models.
Diagrams and measurements for the physical size of the heat pump units.
Overview of the wire controller's main interface and the function of each button.
Procedures for unit startup/shutdown, mode switching, and target temperature adjustment.
Instructions for setting the current time and configuring the heat pump's timing schedule.
How to activate silent mode, manage timing silent functions, and access fault history.
Display of temperature/power curves and list of adjustable operating parameters.
Tables for electronic and frequency conversion board faults, plus wire control interface definitions.
Guidance on regular checks for water supply, filter cleaning, ventilation, and unit condition.
Important safety precautions and general warnings for unit operation and installation.
Recommended cable types, sizes, and protection for single and three-phase units.
Details on warranty periods, claim procedures, and required documentation.
Conditions that void the warranty and limitations on AstralPool's liability.
| Brand | Astralpool |
|---|---|
| Model | 78542 |
| Category | Heat Pump |
| Language | English |











