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Powered up spa for the season and heated water. next day went to go in and it was not running.checked breaker and gfci they were ok checked fuse in spa pak and it is blown and dont know why. any help

Blown 20 amp fuse in balboa spa pak

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Hi.

Let's cut to the bottom line and replace the motor... maybe... or not.

:)

When I was awarded my "Master Spa Technician" certification, this subject of how to diagnose a bad fuse was the final exam question, because it separates the "men from the boys" so to say.

"The Cover Guy" gave you a really good answer, for basic beginning testing. I will take it further... and I will also explain why he told you to call a professional... very good advice by the way.

66O 263 O984 ask for John... that's me. A professional.

But since this is a fix it yourself kinda place, and I assume you want to, ummm, fix it yourself... sit down, and drink a cup of coffee or tea with me and let's chat about your spa for a minute.

Here is a more in-depth line of logic.

Step one: Most electricians can't fix a bad fuse problem by the way so do not waste your time and money with them. Now that that is out of the way, don't stereotype... in 15 years I have met 2 that were capable.

Fuses blow... but not unless there is a spike in the current flowing through them. Because they are sealed they do not corrode, and have no moving parts so they do not wear out... so while Cover Guy's answer is correct, changing the fuse will make it run again, but it may not solve your problem, and most likely will merely buy you time.

This said, it is possible that you had a weak fuse from the factory and changing the fuse WILL solve your problem... but that is so rare that it is nearly unheard of.

Fuses can also blow when the spa experiences an electrical surge from the power lines, and there is absolutely nothing wrong with your spa... so, again, changing the fuse may APPEAR to solve your problem... but not really.

Fuses will blow if the main power lines coming into the spa are too small for the spa, the rule of thumb being no smaller than 6 gauge and no longer than 75' of 6 gauge. 8 gauge does it all the time... and electricians LOVE running spas on 8 gauge wire. In fact rewiring their jobs keeps a good friend of mine in business. So, verify that you have 6 gauge wire delivering the electricity to your spa.

When a fuse blows, you need to ensure that you replace it with the right fuse for your application. Many times people think that they can just stick any old fuse in there and things will work fine, but you cannot do this with a spa. They require a special type of fuse which most hardware stores do not carry.

I cannot tell you how many times in the 15 years I have been repairing and rebuilding spas, that someone called me because they replaced the fuse and it is still blowing, only to go and find out that they are using the wrong fuses because the hardware store guy said "This will work."

Again, the right fuse will not solve a defective electrical component, but it will ensure that you do not compound your actual problem by hiding it behind defective fuses.

Next, if you are not really capable of fixing this yourself, then be humble enough to be honest with yourself and talk to a spa technician, because we are a specialist in this particular field. Electricians, while brilliant at most other electrical things, know very little about how to fix a spa... but they mean well. I qualify to say that considering my pre-spas life was an industrial electrical background.

Anyway, this is why "Cover Guy" said call the pro. Your spa technician will know the specifics of the brand of computer you have, or will know who to call to discuss your specific model with, since there are literally more than 1,000 different spa computers out there. Each different computer may be designed to use the fuses in different ways. Electricians don't have a clue who to call even if they wanted to.

All of that said, let's assume that you are still reading and still are confident that you CAN do this... and you actually can with my help.

Start by changing the fuse.

So, assuming you just changed the fuse with the RIGHT replacement, and it blows again.......

First turn off the breaker. Did I mention turning off the breaker?

TURN OFF THE BREAKER!!!!!

If you get shocked because you ignored the above, it is on you.

Now, open your spa cabinet and begin to physically inspect ALL wires and plugs at both ends of the wires to ensure there are no scorch marks, no signs of melted brass in the plugs, nothing is broken, no rodents have chewed on things revealing the bare copper, nothing is in a puddle of water, etc. in other words, everything looks perfectly fine from end to end.

Next, IN THE VERY CENTER, take the cover off of the shaft in the rear of the pump motor and using a flat screw driver, turn the shaft. If it does not turn, or is hard to turn, you have your problem. Take the pipe off of the front and ensure that there is nothing in the hole that is preventing the pump from turning. If you can get the pump loose and turning easily once again, replace the fuse, put everything back together and turn the breaker back on, and hope for the best. If that does not fix it, or you cannot make the motor turn, replace or rebuild the motor... and while you are at it rebuild the pump.

Do the above with every pump.

Next, assuming that was not the problem, and it usually is, then unplug everything else but the heater, and try it again.

If you need assistance beyond this, feel free to call me. For that matter, even if this DID fix your problem call me. I like hearing that I helped. :)

66O 263 O984 ask for John.

Posted on Nov 10, 2015

  • Liz Schieck
    Liz Schieck Oct 29, 2016

    John you are not in Guelph On..any person you could recommend around here?..thanks liz

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Fuses go from time to time and just need to be replaced. You can also blow fuses with a short in the plugin that is associated with the fuse. A ceased pump will cause a fuse to blow. The best way to deal with a fuse that continues to blow is to isolate what plugin is causing the fuse to blow.

An easy test is to start with all plugins unplugged and then plug each one in until you blow the fuse. Once you find which plugin is the issue you can leave it unplugged and follow it back to the equipment it runs, perhaps the light, ozonator, pump, radio etc.. Then repair the issue or replace it and you should be good to go.

Hot Tub Power Pak Repair We wrote a post on power pak repair you can find here for additional info. As always when it comes to the power side of things it is always best practice to seek the help of professionals.

Posted on Sep 17, 2015

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Overload!! Was it cold out, what does the fuse go to

Posted on Mar 28, 2014

Testimonial: "not sure its on the green panel inside balboa spa pak its a 20 amp time delay fuse"

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