How To Change a Blown Spa Blower Motor Fuse

This guide explains you how to check and replace the blower motor fuse in your spa control box.Your blower motor in your spa stopped working. You have one of three likely problems: your blower motor has failed; the motherboard in your control box has blown, or the fuse to your blower motor has blown. 

1. To locate the fuse to the spa blower motor, look for a control panel circuit diagram. This diagram is usually in the control box.

2. Turn off power to your spa at the circuit breaker box.

3. Remove the spa side panel.

4. Remove the control box cover.

5. Look for the circuit diagram. In this case it's glued to the back of the spa control box cover.

6. Call the manufacturer and ask them for the location of the blower pump fuse. Note: If you can't locate the circuit diagram, take a picture of the circuit board and sent it to the manufacturer.

7. In this case the blower motor fuse is identified as F7 20A 250V and is located in the upper right end of the circuit panel.

8. Pull the fuse out of the fuse clips. If it's stuck, use a small screwdriver to pry it out gently. Be careful not to drop it into the bottom of the control box.

9. You could perform a continuity check on the fuse. If it reads zero, the fuse is blown and should obviously be replaced. But even if it shows some reading it may be partially defective and you should replace it with a new one to see if it corrects the problem.

10. Perform a continuity check on the new fuse to verify it is good.

11. Push the new fuse into the fuse clips.

12. Turn on power to the spa.

13. Push the spa blower pump bottom to activate the blow pump and verify that the new fuse corrected your problem. Note for this Balboa Spa, the blower pump is activated by pushing the aux button but this option will verify from spa to spa.

14. Turn off Power Replace the control box cover and the spa side panel.

If you have any other questions about pool and spa products please do let us know - we are here to help! 

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