19xr alarm 4, code 213 and 237

[mariongee]

Does anyone have anything on this alarm?
I have never seen it before and it isn’t listed in my codes and alarms section of the manuals. I’m wondering if I am having an ISM issue.
Every couple of months the chiller loses its program and shows a screen with the Carrier logo.
The alarm history shows this alarm. Can anyone help me?

[CCSPIERCE]

Check voltage to the ICVC panel. If it is 27 volts or higher, then machine voltage is running a little high. For the time being leave the ICVC panel lid cracked open to relieve ICVC board heat in the panel. Carrier has a 21 volt transformer to fit into the power panel. If this scenario is indeed your problem, replace the 24 volt ICVC transformer with the 21 volt transformer.

[mariongee]

Thanks. I do have 27 volts. Any reason why only 1 of 3 chillers is being affected?

[carriertechny]

Does anyone have anything on this alarm?
I have never seen it before and it isn’t listed in my codes and alarms section of the manuals. I’m wondering if I am having an ISM issue.
Every couple of months the chiller loses its program and shows a screen with the Carrier logo.
The alarm history shows this alarm. Can anyone help me?

Sent from my iPhone using Tapatalk

[carriertechny]

Alarm213 sensor fault comps motor temp. Alarm237 prestart failure no power supply


Sent from my iPhone using Tapatalk

[mariongee]

Thank you. Any idea why the t happens only on one chiller?

[mariongee]

Need to ask a quick question. There are 2 boards in the 19xr display controller. If I change the display board, do I need to change the board that feeds it if it is a com problem? Thx for responding

[carriermechanic]

When you say display board I'm assuming you are talking about the ICVC. Im thinking the other board you are talking about is the CCM board. I would be shocked if the CCM board is bad. its somewhat common to replace ICVC boards. Ive done 3-4 in the last 1-1.5 years.