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airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8326
Experience:  Furnace, A/C and heat pump specialist.
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Ac unit & fan outside run continuiouly, unit & blower inside

Customer Question

ac unit & fan outside run continuiouly, unit & blower inside cycles on for short time then off.
blower motor has thermo protection. My guess is the thermo protection keeps cutting out'
is there something else that wounld have same symtoms?
Submitted: 2 years ago.
Category: HVAC
Expert:  airheatman replied 2 years ago.
Hello. My name is ***** ***** I'll do my best to help. Let's get started and see what we can do.Are you saying thermostat is calling for COOL. The outdoor come son and off as it is supposed to but the blower will not stay running? If so do you have a volt meter so we can do some troubleshooting?
Customer: replied 2 years ago.
with unit running , i probed motor leads found 156 v, 114 v & 1
31v at bl bu or red
Expert:  airheatman replied 2 years ago.
What is model on unit and are you checking from each lead to ground or between wires?
Customer: replied 2 years ago.
ge 5kcp39kg s887 s. yes measurment from common to indiviual leads each time
Expert:  airheatman replied 2 years ago.
I am showing this as a 115v motor correct?
Customer: replied 2 years ago.
yes
Expert:  airheatman replied 2 years ago.
OK if we are getting voltage to motor, I would next check the capacitor. Does your meter read capacitance?(microfarads)?
Customer: replied 2 years ago.
no
Expert:  airheatman replied 2 years ago.
Capacitor is less than 10 bucks at appliance parts store. A meter for troubleshooting that reads capacitance is about 30 bucks. I would replace capacitor and see if that fixes problem.
Customer: replied 2 years ago.
thank you
Expert:  airheatman replied 2 years ago.
Let me know how it goes. If that does not solve your problem we can go from here.
Customer: replied 2 years ago.
I will get capacitor, reassemble blower, then let you know how can i reach you
Expert:  airheatman replied 2 years ago.
JUst sign in to the site and go to "MY Questions".