AeWare IN.THERM - Heater

2.0Kw - 0603-421003

AeWare IN.THERM - Heater

2.0Kw - 0603-421003
Quick Find Code: 5893
MPN: 0603-421003
In stock 1 in stock
In stock Same day dispatch on orders before 15:30
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  • You can purchase a 2 year extended warranty on this product. 
  • Protects against manufacturing defects causing breakdown.
  • Free repairs for the term of the warranty period
  • In additon to the manufacturers standard warranty.
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Product Description
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Spare Parts
Product Description

AeWare IN. THERM - Heater 2.0Kw - 0603-421003

2 Kw (Gecko code 0603-421003)

3.8Kw (Gecko code 0603-421001) - pick yours in the options, Yours may state 4kw but the 3.8kw is now the direct replacement, it is just badged up differently for the European market.

The design of its unique seamless enclosure and its cover gasket eliminates all risks of water infiltration. Filled with epoxy, its electronic board compartment is protected against the stress of water flow vibrations. It includes a built-in temperature probe and a new water flow detection feature that eliminates the need of a pressure switch.

No spares are available for this hot tub heater as it is a fully enclosed one piece unit.

In.therm controls multiple power levels on a single element extending its lifetime by heating at high power only when needed. With no moving parts and no adjustments, in.therm is hassle free and defines new levels of reliability.

Heater Specification
Model 0603-421003
Flow 18gpm
kW 2.0 kW
Amp 8.0/8.5 A
Supply V/Hz 230v / 50Hz
Element Titanium, Single
Sensor Type(s) Intergrated
Length (includes tails) 368 mm
Plumbing Connection 2.00'' (F) - 60mm ID
Compatiable Spa Pack Aeware
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More Info

An RHNF fault on this heater may occur on some Arctic Spa control packs. The following reset procedure may rectified this fault. (Test at your own risk)

  1. Locate and hold down the select key on the PCB board for 5 seconds. (The symbol LL followed by a number can now be seen on the topside controller
  2. Release the select key.
  3. Tap the change key to cycle the number next to the LL symbol. Cycle through until it is the number you started with.
  4. Tap the select key once.
  5. Tap the select key again. They symbol SC will appear for 1 min indicating the learning cycle is active. An X in a box symbol will appear on the topside, tap the key adjacent to it.

    The system should reset. If this procedure does not clear the fault, the heater has failed and needs to be replaced.
Spare Parts
In stock 2 in stock
In stock Same day dispatch on orders before 15:30
Pressure Switch Gecko DTEC 5V
In stock 5 in stock
In stock Same day dispatch on orders before 15:30
Gecko Hi Limit Sensor - M-Class JST
In stock 3 in stock
In stock Same day dispatch on orders before 15:30
Gecko Hi Limit Sensor - S-Class JST
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