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RemFixitSearch fault code

Error code

Carrier hassas klima All models code T203

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Meaning

Loss of Communica- tion with the Slave Chiller Loss of Communica- tion with the Master Chiller Master and Slave Chiller with Same Address

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Possible causes

Failed Slave MBB Module, wir- ing error, loose connections, wrong address, loss of control power on slave chiller. Failed Master MBB Module, wiring error, loose connec- tions, wrong address, loss of control power on master chiller. Master and Slave chiller must have different addresses

Solution

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