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Anthony Coker

Technical Services Manager
North Georgia District

Condensate Pump Replacement

We are finding ourselves with more and more VRF components that will require maintenance periodically. Example: a 40VMF 

Below are the procedures of handling one of the components mentioned above. As always, please take your time and use precautions in all work you perform. 

12 Steps to replace a Condensate Pump on a 40VMF

 1) This is the location of the condensate pump in relation to the control compartment 

Step 1

 2) Remove all screws from the four corners indicated by the arrows 

Step 2

 3) Remove the 3 screws to remove wire routing cover. 

Step 3

 4) Remove the felt tape covering the wire route 

Step 4

5) Trace the pump high voltage wiring harness to the control compartment 

Step 5

6) Unplug the 2 black wire connectors from the pump connector on the control board and unscrew the green ground wire from the control compartment 

Step 6

7) Trace out the pump float alarm cable. Notice that it runs under the control compartment and will require taking the control compartment screws out. Let it hang down so you can access the wire all the way over to the wire bundle on the right side of the control compartment.

Step 7

8) To remove the control compartment first cut the wire tie holding the wire bundle together. 

Step 8

9) Next unplug the red and black 2 wire plug from the water connector on the control board 

Step 9

10) Once you have both cables disconnected remove them from the wire route in the bottom of the foam drain pan.

Step 10

11) Next you pull the drain pan down about 2 to 3 inches all the way around the unit. You will then be able to pull the condensate pump side down about 10 inches. 

Step 11

12) You will then be able to access the pump Assembly which can now be removed by removing the 3 mounting screws.

Step 12

To complete the replacement, install the new condensate pump assembly and reverse the previous steps. 

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