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gene, RV Mechanic
Category: RV
Satisfied Customers: 1100
Experience:  28 yrs exp in the industry
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A/c compressor hums after unit shuts down when temp is

Customer Question

a/c compressor hums after unit shuts down when temp is reached
JA: What's the make/model/year of your RV?
Customer: its a 2001 kropf park model
JA: What is the model of your '01 RV?
Customer: speacial edition
JA: Are you fixing your RV yourself? What have you tried so far?
Customer: yes
JA: Anything else you want the mechanic to know before I connect you?
Customer: put in starter relay compressor relay
JA: How many miles are on the car? Has the car been starting normally?
Customer: not a car its a park model unit
Submitted: 3 months ago.
Category: RV
Expert:  Randall replied 3 months ago.

Hi! My name is ***** ***** I can assist you with this. I may need some additional information from you first in order to give a complete answer.

Expert:  Randall replied 3 months ago.

What is the make and model of the A/C and the controls?

Customer: replied 3 months ago.
It's a domestic only have set no 11919981
Expert:  Randall replied 3 months ago.

D​ometic. Is that the A/C or the control or both? A photo of the thermostat would help. Use the paperclip icon to attach it to your post.

Customer: replied 3 months ago.
Disconnected thermostat and still hums
Expert:  Randall replied 3 months ago.

The thermostat just controls the control board. That controls the relay. If the control board isn't allowing the relay on the compressor to turn off, then it will hum OR there is an issue with the compressor itself. Testing is needed here to find out which it is. Some of these are hard to find parts for any more.

Expert:  Randall replied 2 months ago.

J​ust checking back in to see if perhaps you might have missed by earlier responses to your question? Easy to do considering the volume of e-mail most of us get every day! If you need me to resend that information please let know. Thanks!