Dontek Hot Roof Sensor for Digital Solar Pool Heating Controllers (15 m, 20 m or 50 m)
π·οΈ Brand
Dontek
π Description
The Dontek CA72 (15 m), TS01 (20 m, 1131013) and TS08 (50 m, 1131024) are hot roof sensors for Dontek digital solar pool heating controllers, including the V1, V2, V4, V5, V7, AS2 and AS3 models.
The roof sensor tells your controller how hot the solar collectors are, so it can decide when to run the pump and send heated water to your pool. Choose the 15 m, 20 m or 50 m cable to suit the run between your controller and the roof. Each one is a straight swap for a faulty, damaged or too-short digital roof sensor, and the 20 m and 50 m sensors sit in a heavy-duty polypropylene housing.
π¦ Parts Included
- 1x Dontek digital hot roof sensor with 15 m, 20 m or 50 m cable, depending on the length you choose
π Measurements
Measurements are approximate.
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Cable length: 15 m, 20 m or 50 m
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Weight (20 m): 350 g
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Weight (50 m): 0.91 kg
βοΈ Specifications & Compatibility
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Brand: Dontek
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Model: Hot roof sensor, Digital (CA72 / TS01 / TS08)
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SKU (15 m): CA72
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SKU (20 m): 1131013 / TS01
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SKU (50 m): 1131024 / TS08
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Manufacturer code (15 m): CA72 / HWG2G025-BK-C15
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Manufacturer code (20 m): CA73 / 1131013 / HWG2G025-BK-C20Β
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Manufacturer codes (50 m): CA74 / 1131024 / HWG2G025-BK-C50
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Sensor position: Roof / solar collector (hot)
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Cable length: 15 m, 20 m or 50 m
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Cable: Black twin-core, tinned copper conductors, made in Australia
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Housing: Heavy-duty polypropylene
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Suits Dontek digital controllers: V1, V2, V4, V5, V7, AS2 and AS3
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Matching pool (cold) sensor: Dontek 2.5 m pool (cold) sensor, Blue / Digital (1131018)
- Not suitable for Dontek Plus controllers: AS2+, AS3+ and AS5 use the Plus roof sensor (Dontek 1131015 and 1131025)
π‘ Before You Buy
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Digital controllers only. These are the Digital roof sensors and suit the Dontek V1, V2, V4, V5, V7, AS2 and AS3 controllers. Check the model on the front of your controller before you order.
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Not for Plus controllers. Dontek's "Plus" series controllers (AS2+, AS3+ and AS5) need the Plus roof sensor, not this one. That includes our Aquasun 2+ solar controller and the Aquasmart 5 S and Aquasmart 5 CD.
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Choose your cable length. Pick the 15 m, 20 m or 50 m cable to cover the run from your controller to the roof sensor position.
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Pool-side sensor. The roof sensor is only half of the pair. If your pool sensor needs replacing too, see the Dontek 2.5 m pool (cold) sensor in the Blue / Digital version.
π§ Our Tips
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How to test the sensor. Swap the pool and roof sensor plugs between the controller sockets. If the error follows the sensor, the sensor is faulty. If the same error stays in either socket, the controller may need repair.
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Check the plug and cable first. Poor plug connections, corrosion and loose leads cause many faults. If the cable is damaged, cut out the damaged section and re-join it, or replace the cable. Damage is not always visible, and cables that run underground can be damaged or waterlogged.
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Keep it off the gutter. Position the sensor on the roof so it does not sit in or overhang a gutter, because a sensor that reads too cold can trigger an out-of-range error.
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Beware of lightning. Lightning can damage roof sensors and controllers.
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Test before you replace!. When you get your new sensor, before you go climbing on roofs - check theΒ sensors works in your machine. Don't unwrap it, plug it in and test it first. It may take a few minutes to register, but power cycling the controller usually takes a reading straight away.
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Where to put the hot sensor. It doesn't actually need to be right up next to the solar roofing panels/tubes. As long as it's in the sun at the same time as the panels, it should work just fine. Don't put it in the shade though, it must get the same sun as the solar pool heating panels.
β Common Questions
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Which Dontek controllers does it suit? The digital V1, V2, V4, V5, V7, AS2 and AS3 controllers. Plus controllers (AS2+, AS3+ and AS5) need the Plus roof sensor instead, including our Aquasun 2+ (AS2+) and Aquasmart 5 S and Aquasmart 5 CD (AS5).
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What does a roof sensor do? It measures the temperature of your solar collectors so the controller knows when the roof is hot enough to heat the pool, and when to turn the pump on.
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My controller shows an error. Is the sensor faulty? Dontek lists 77/99 as an open circuit, 66/88 as a short circuit and 67/89 as out of range. A damaged cable, a poor plug connection or a sensor sitting in a gutter are common causes, so check these and try the socket swap test before you replace the sensor.
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Which cable length do I need? It comes in 15 m, 20 m and 50 m. Choose the length that covers the run from your controller to the roof sensor position.
π Downloads and Support
π Shipping
π‘οΈ Warranty Information
Covered by a standard 12 month manufacturer warranty from Dontek.
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