customer has a 24 foot and 12 foot open coolers side by side. the 12 foot has been having issues for last couple months. one call it was to warm. then month later to cold. problem now is approx half the coil is iced up. its the left side where the TXV feed the coil and it's beside the 24 foot. the 24 and the other 6 feet of the 12 foot are running fine. good airflow and temp. The iced side is of course warm and bad airflow due to the ice up. all fans are running. checked TXV and it seems fine.. system has off time defrost which I confirmed is working
this one seems wierd to me...if it was the TXV wouldn't the far end of the coil be warm cause it would be starving??
I'm thinking its the thermostat... I turn dial up and down and I can hear it click and see TXV feed... thermostat sensing bulb is near middle..My thought is the bulb has failed.
anyone else expience same or similar??