Multi Solar MS3D Roof Sensor 25m

Replacement Ascon MS3D roof sensor probe 25m long.

Roof Sensor Faults

"RRR" push display button and the "P" reading will be either "00" or "84". 
If "00" there is an open circuit, look for a break in the wire or replace sensor.
If "84" or higher there is a short circuit - check wire or replace sensor.

Determine Sensors or Controller at Fault

Sensor - Swap sensors over - fault reading should change over to the opposite.
Controller - If it does not change over to opposite, new controller maybe required.

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