Has any body experienced random alarms with Carel PCOB 000 A21 ?
The board is in a Thermocold Water Chiller , 2003 , Twin compressor, water cooled condensor.
The fault = High Pressure Circuit 1, but it only shows after the compressor 1 has cycled off on set point.
I have checked all the interlocks, I suspected the thermistor as this is in the line but its ok.
The I/O doesnt show a fault at any time, I spoke with Carel Technical Support who suggested problem with the memory chip, and resetting all parameters ( can do in manufacture section)
would solve the issue.
Has any body tried this successfully ?
I have to travel along way to re visit machine and would feel better if I thought it may work.
I am currently quoting customer to upgrade controller but would be shame if a simple reset did the trick.
The board is in a Thermocold Water Chiller , 2003 , Twin compressor, water cooled condensor.
The fault = High Pressure Circuit 1, but it only shows after the compressor 1 has cycled off on set point.
I have checked all the interlocks, I suspected the thermistor as this is in the line but its ok.
The I/O doesnt show a fault at any time, I spoke with Carel Technical Support who suggested problem with the memory chip, and resetting all parameters ( can do in manufacture section)
would solve the issue.
Has any body tried this successfully ?
I have to travel along way to re visit machine and would feel better if I thought it may work.
I am currently quoting customer to upgrade controller but would be shame if a simple reset did the trick.