AquaForte

AquaForte heat pump parts and spares

AquaForte equipment is a familiar sight on garden pools and koi ponds across Europe, and the part of the range that tends to need attention over the years is the heat pump. Here you will find the components that keep those units running: temperature sensors, four-way valves, expansion valves, control and filter boards, solenoid coils and gaskets, listed by the model codes printed on the unit rather than by vague descriptions. Because a heat pump is a sealed refrigeration circuit with an electronic control layer on top, most faults come down to one measuring or switching component rather than the whole appliance, which is why individual spares are worth sourcing.

Which AquaForte series these parts belong to

Two families dominate the listings. The Mr. Silence range, covering the SC947 to SC952 codes, is the on/off and quieter-running generation, and parts such as the SC948H gasket and the SC948F complete sensor set are shared across several models in that block. The Full Inverter and Full DC Inverter series runs from SC980 to SC985, with the smaller units in the SC980 to SC983 group described as 5.5 to 11.5 kW and the SC984 as 15.3 kW. Alongside the pool units sits the occasional cabin component, such as the temperature sensor for the CP3C sauna and infrared cabin.

The distinction matters because inverter and non-inverter boards, valves and probes are not interchangeable, even where the housings look similar. A sensor specified for SC980 to SC983 will not necessarily carry the same resistance curve as the SC984 and SC985 equivalent.

Parts that typically need replacing

• Sensores de temperatura: water inlet, water outlet, coil, ambient, suction air and exhaust probes. These are thin-walled thermistors in a pocket or clipped to a pipe, and they drift or fail open, which usually shows up as an error code or a unit that refuses to start.
• Four-way valves and solenoid coils: the valve body reverses the refrigerant flow for defrost. Often the valve itself is sound and only the coil has burned out, so check which of the two is actually at fault before ordering.
• Electronic expansion valves: fitted to the inverter models and driven by the control board; a stepper motor and valve body combination.
• Boards: power filter boards and control electronics, listed per model because firmware and connector layouts differ.
• Gaskets and seals: the panel, fan and water connection seals that stop air bypass and water ingress.

Finding the right part code

Start with the data plate on the side or rear of the heat pump. The model code there, for example SC981 or SC948, is the first filter. Next, note whether your unit is an inverter or a fixed-speed model, since several part numbers in this range are written as a span such as SC980 to SC985 and only apply within that span.

For sensors, compare the cable length, the connector type and the shape of the probe tip against the old component before fitting; a bulb that sits in a brass pocket is not the same as a clip-on surface probe, even when the sensing element matches. For valves and coils, check the coil voltage and the pipe diameters on the existing part. For gaskets, measure the old seal across the outside, across the inside and through the thickness while it is still in place if you can, as rubber that has been compressed for several seasons will not spring back to its original dimensions once removed.

Work on the refrigerant circuit, including four-way and expansion valves, involves brazing and recovery of refrigerant and should be left to a qualified refrigeration engineer. Sensors, coils, boards and gaskets are generally accessible once the unit is isolated from the mains supply.

AquaForte at PoolParthub.com

Here we list a broad spread of AquaForte service components, with the emphasis on heat pump electronics and refrigeration control parts for the Mr. Silence and Full Inverter series, plus the gaskets and sensor sets that are ordered most often alongside them.

Each item is listed under its own manufacturer code so you can match it against the exploded view or the parts label inside your unit. If the code on your heat pump does not appear exactly, work from the series range in the product title and check the physical dimensions of the old part before ordering.