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Video & Articles: Appliance & Equipment RepairCarrier/Gree ETAC Heat Pump Transformer Replacement 43110270 
Carrier/Gree ETAC Heat Pump Transformer Replacement 43110270
Skill Level
Total Parts Cost
$46.80Estimated Savings
$112.5012:32
- Description
This video provides step-by-step instructions for replacing the transformer on a Carrier/Gree ETAC Heat Pump Unit. The most common reason for replacing this part is if the unit is not powering on at all.
All of the information in this video is applicable to the following brands: Carrier, Gree
All of the information in this video is applicable to the following brands: Carrier, Gree
Step By Step Instructions
1
To replace the transformer in this carrier/gree etac heat pump unit…
2
… you will need a #1 phillips-head screwdriver, a #2 phillips-head screwdriver, a short #2 phillips-head screwdriver, a long #2 phillips-head screwdriver, wire cutters, zip-ties, and needle-nose plier
3
Before you begin the procedure, be sure to turn the unit off…
4
…and disconnect the power supply.
5
Remove the unit’s front panel by pulling the bottom of the panel out to release it from the tabs…then lift up.
6
Use the #2 phillips-head screwdriver to unthread the screw securing the control panel.
7
Detach the control panel.
8
Now unthread the lower right screw securing the junction box cover.
9
Unthread the three screws securing the junction box itself.
10
Pull back the cover to fully detach the junction box from the power cord.
11
Disconnect the power cord wire connecter.
12
Next, unthread the six screws securing the control box’s side access cover.
13
Remove the cover.
14
Unthread the four screws to release the left access cover.
15
Now unthread the five screws securing the middle access cover.
16
If applicable, disconnect the wall thermostat wire connecter and the energy management wire connecter.
17
Disconnect the relay board and transformer wire connecters from the main control board so you can move the middle access cover out of the way.
18
Next, use the short #2 phillips-head screwdriver to unthread the screw to release the compressor capacitor mounting strap and move the capacitor out of the way.
19
Now use the #1 phillips-head screwdriver to unthread the two screws securing the relay and power control board to the mounting plate.
20
Cut the zip-tie bundling the wires together.
21
Release the wire connecter lock from the indoor fan motor connecter …
22
… then disconnect the fan motor connecter as well as the heater wire connecter
23
Depress the tabs to detach both wire connecters from the side panel of the control box.
24
Now unthread the top screw securing the relay and power control board mounting plate to the side panel.
25
Pull the board forward then release the two upper tabs to detach the mounting plate to fully remove.
26
You can now use the long #2 phillips-head screwdriver to unthread the two screws securing the transformer to the control box’s bottom panel.
27
Release the wire connecter locks from the two remaining transformer wire connecters…
28
… then disconnect the connecters from the relay and power control board to fully remove the old transformer.
29
To install the new tranformer…
30
… connect the two applicable wire connecters to the terminals on the relay and power control board…
31
… and replace the locks.
32
Position the transformer on the bottom panel and thread the two screws.
33
Insert the lower tabs of the power control board mounting plate into the slots in the side of the control box and snap the upper tabs into place.
34
Rethread the top screw.
35
Snap the heater wire connecter and the indoor fan motor wire connecter into the holes on the side of the control box…
36
… then reconnect the connecters and secure the indoor fan motor connecter with the lock.
37
Reposition the relay and power control board on the mounting plate…
38
… and thread the two screws to hold it in place.
39
Use a new zip-tie to bundle the wires together.
40
Reposition the capacitor in the mounting strap and thread the screw to hold the capacitor in place.
41
Reconnect the relay board and transformer wire connecters to the main control board…
42
… then realign the middle access cover and thread the five screws.
43
Reconnect the wall thermostat and energy management wire connecters if applicable.
44
Reposition the left access cover…
45
… and rethread the screws.
46
Realign the side access cover…
47
… and thread the screws to secure.
48
Reconnect the power cord wire connecter…
49
… then reposition the junction box and rethread the screws.
50
Rethread the lower right screw to fully secure the cover.
51
Realign the control panel and thread the screw to secure.
52
Reinstall the front panel by aligning the tabs over the top rail then push the bottom of the panel in until it snaps into place.
53
Restore power to the unit…
54
… and the etac heat pump system should be ready for use.
Description
This video provides step-by-step instructions for replacing the transformer on a Carrier/Gree ETAC Heat Pump Unit. The most common reason for replacing this part is if the unit is not powering on at all.
All of the information in this video is applicable to the following brands: Carrier, Gree
All of the information in this video is applicable to the following brands: Carrier, Gree
Step-By-Step Instructions
1
To replace the transformer in this carrier/gree etac heat pump unit…
2
… you will need a #1 phillips-head screwdriver, a #2 phillips-head screwdriver, a short #2 phillips-head screwdriver, a long #2 phillips-head screwdriver, wire cutters, zip-ties, and needle-nose plier
3
Before you begin the procedure, be sure to turn the unit off…
4
…and disconnect the power supply.
5
Remove the unit’s front panel by pulling the bottom of the panel out to release it from the tabs…then lift up.
6
Use the #2 phillips-head screwdriver to unthread the screw securing the control panel.
7
Detach the control panel.
8
Now unthread the lower right screw securing the junction box cover.
9
Unthread the three screws securing the junction box itself.
10
Pull back the cover to fully detach the junction box from the power cord.
11
Disconnect the power cord wire connecter.
12
Next, unthread the six screws securing the control box’s side access cover.
13
Remove the cover.
14
Unthread the four screws to release the left access cover.
15
Now unthread the five screws securing the middle access cover.
16
If applicable, disconnect the wall thermostat wire connecter and the energy management wire connecter.
17
Disconnect the relay board and transformer wire connecters from the main control board so you can move the middle access cover out of the way.
18
Next, use the short #2 phillips-head screwdriver to unthread the screw to release the compressor capacitor mounting strap and move the capacitor out of the way.
19
Now use the #1 phillips-head screwdriver to unthread the two screws securing the relay and power control board to the mounting plate.
20
Cut the zip-tie bundling the wires together.
21
Release the wire connecter lock from the indoor fan motor connecter …
22
… then disconnect the fan motor connecter as well as the heater wire connecter
23
Depress the tabs to detach both wire connecters from the side panel of the control box.
24
Now unthread the top screw securing the relay and power control board mounting plate to the side panel.
25
Pull the board forward then release the two upper tabs to detach the mounting plate to fully remove.
26
You can now use the long #2 phillips-head screwdriver to unthread the two screws securing the transformer to the control box’s bottom panel.
27
Release the wire connecter locks from the two remaining transformer wire connecters…
28
… then disconnect the connecters from the relay and power control board to fully remove the old transformer.
29
To install the new tranformer…
30
… connect the two applicable wire connecters to the terminals on the relay and power control board…
31
… and replace the locks.
32
Position the transformer on the bottom panel and thread the two screws.
33
Insert the lower tabs of the power control board mounting plate into the slots in the side of the control box and snap the upper tabs into place.
34
Rethread the top screw.
35
Snap the heater wire connecter and the indoor fan motor wire connecter into the holes on the side of the control box…
36
… then reconnect the connecters and secure the indoor fan motor connecter with the lock.
37
Reposition the relay and power control board on the mounting plate…
38
… and thread the two screws to hold it in place.
39
Use a new zip-tie to bundle the wires together.
40
Reposition the capacitor in the mounting strap and thread the screw to hold the capacitor in place.
41
Reconnect the relay board and transformer wire connecters to the main control board…
42
… then realign the middle access cover and thread the five screws.
43
Reconnect the wall thermostat and energy management wire connecters if applicable.
44
Reposition the left access cover…
45
… and rethread the screws.
46
Realign the side access cover…
47
… and thread the screws to secure.
48
Reconnect the power cord wire connecter…
49
… then reposition the junction box and rethread the screws.
50
Rethread the lower right screw to fully secure the cover.
51
Realign the control panel and thread the screw to secure.
52
Reinstall the front panel by aligning the tabs over the top rail then push the bottom of the panel in until it snaps into place.
53
Restore power to the unit…
54
… and the etac heat pump system should be ready for use.
Applicable Product Model
Parts Needed
Transformer
$46.80
Total$0.00
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