View Full Version : Carrier Chiller 30XA1202 Alarm
Aqeelhassan
30-03-2010, 03:12 PM
dears,
i've an alarm in the panel of my Carrier Chiller model : 30XA1202 which reads ( electrical box interlock or electrical thermostat failure) and as a result the chiller does not start.
please advise what action to be done?
goshen
30-03-2010, 07:02 PM
Hi is there a number associated with this alarm ??
serviceman
30-03-2010, 09:16 PM
Alarm 66 — Electrical Box Thermostat Failure/Reverse
Rotation (P.28)
NOTE: Alarm 66 is not used or supported. If this condition is
encountered, confirm machine configuration.
moideen
31-03-2010, 05:31 AM
dears,
i've an alarm in the panel of my Carrier Chiller model : 30XA1202 which reads ( electrical box interlock or electrical thermostat failure) and as a result the chiller does not start.
please advise what action to be done?
this alarm related to flow switch.check the flow switch.
moideen-dubai
Grizzly
31-03-2010, 05:43 AM
I don't know if it Helps but the manual I have say's this -
Control box poorly ventilated
or poor electrical connection
Good Luck Grizzly
jhd1234
31-03-2010, 05:59 AM
have you checked the phasing on the incoming power to see if it has changed from the original configuration?
fintan
31-03-2010, 02:40 PM
As in the last post, check your phases and also that another unit is not been fed from the same power supply causing a voltage imbalanced.
We had the same problem where on start-up; the customer was using a generator to give a temporary power supply to the chiller. In the building if the elevator motor turned on it would cause a slight drop in power and the chiller would trip on the same alarm.
alan wolf
31-03-2010, 03:24 PM
hello
had same problem recently and its the built in flow switch check flows
aww
serviceman
31-03-2010, 03:24 PM
when the flow switch failure shows a lack of coolant flow
Aqeelhassan
01-04-2010, 07:01 AM
Hi is there a number associated with this alarm ??
no,there is no number in alarm
oldschooleng
19-04-2010, 07:16 PM
this is a flow switch fault,check your water flow
goshen
20-04-2010, 02:43 PM
this is a flow switch fault,check your water flow
Hi :
after 3 weeks i would hope he relized as said before ,that it is the flow switch!!!:cool:
gggraj
12-01-2011, 03:41 PM
hi im raj i have problem 30gx267 chiller. power off the through control switch for maintanace.then 4days after i turn on control switch i getting alaram 31 and 19 scpm board not responding what is the reason any body help me?scpm board led red light blinking and green light not blinking
serviceman
12-01-2011, 07:13 PM
07 30 Circuit A Reclaim Pumpdown
Pressure Transducer
Measured voltage is
0 vdc or SST > EWT and
EXV < 50% for 1 minute
None Automatic Configuration error
08 31 Circuit B Reclaim Pumpdown
Pressure Transducer
serviceman
12-01-2011, 07:14 PM
21 19 Space Temperature
Thermistor
Temperature measured
by the controller is
outside of the range
of –40 F to 245 F
Alarm tripped Automatic Faulty Sensor, wiring
error, failed EMM
board
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