Carrier 42HWG009 Technical Data & Service Manual page 61

Split system air conditioner 42hwg-series, 42hqg-series, hwg...h-series, hwg...c-series
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Note 1)
a Neither indoor unit nor outdoor unit runs
Check the following point first (There is following case in normal operation).
a. Is the timer mode set to "TIMER-OFF" and the timer had passed?
b Neither outdoor fan nor compresssor runs while indoor fan runs
Check following points first (There are following cases in normal operation).
a. Is the temperature setpoint suitable?
b. Has the 3 minutes time guard for compressor operated?
c. Has the frost prevention function operated? (When the indoor coil temperature is below 0°C)
d. Is the operation mode dry mode?
(In dry mode, the unit stops intermittently according to the difference between room tempera-
ture and temperature setpoint)
Note 2) Please refer to page 24, f self Diagnostic function.
60

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