38YCB024310 Carrier heat pump contactor buzzing fan not running.

jeeper50

Premium Member
Joined
Dec 2, 2009
Messages
68
Location
Gawja
Model Number
38YCB024310
Brand
-major brand-
Age
More than 10 years
My basement heat pump air conditioner is not cooling and outside unit contactor is buzzer with no fan turning. Unit s/n is 0297e20369 so I'm guessing it is a 97 model. I am thinking it is the start capacitor or main capacitor. Got any ideas what the problem is. Compressor feels cold but is not running as best as I can tell.
 

jeeper50

Premium Member
Joined
Dec 2, 2009
Messages
68
Location
Gawja
removed dual capacitor and looks normal no bulging noted, part number removed 97F9834.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
102,079
Location
McMullen Valley, Arizona
Hi,

Possibly a bad Contactor, Solution 4:

The furnace control board sends 24 Volts to the contactor. When the contactor receives the signal from the control board, it closes the circuit, sending voltage to the condensing unit components. If the contactor is defective, it will not provide voltage to the condensing unit. To determine if the contactor is at fault, use a multimeter to check for 24 Volts at the low voltage side of the contactor. If 24 Volts is present but the compressor and condenser fan motor still won’t run, replace the contactor.

Here's the contactor for your model
Contactor HN51KB024


Jake
 
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