I have a 91 sundance Royale. All my jets work, but I can not get the air bubbles to work. Every time I push the air button I hear a clicking noise coming from the motherboard.

there are two cords going from the control box to the air blower. when it comes into the air blower one goes to the top and the other goes into the rubber boot.

Is power suppose to go thru both cords?


Any help would be a great help.

thanks,

Stacy

without seeing what you are seeing, I am going to wager a guess that the "cord" going to the top of the blower is actually the ground wire. The actual power wire is the one that goes into the "boot". Typically when a Sundance system no longer supplies power to the blower, the triac on the motherboard is bad.

thanks for the repy, I have attached a picture of the air blower.

from the top wire and the one coming from the boot, after it comes out of the wall it is hard to tell which one is which.

the wires from one: green goes to groung (TB3)
white goes to Termial labled TB4
black goes to a Relay labled R4


the other wires: green goes to ground (TB3)
white goes to Relay labled R5
black goes to termal labled TB4

I hope this helps you.

you have a heated air blower system - the 2 supplies are - blower, and heater, however, unfortunately i'm not familiar with this system.
As charger has said, its probable a pcb triac failure has occured (if your blower was multispeed) but also check for onboard fuse and power to the blower - the motor may be bad - unsure of heater supply/operation

thank-you for your reply,

I have checked all the fuses they are good. I know one of the black cords has power, will check the other.

thanks again,

what is a pcb triac failure?

thanks,

A triac is an electronic switch, in which will either turn "full on" allowing the blower to operate on high, or "pulsed on" which will effectivly run the blower at a reduced speed. It's about 1/2" x 1/2" x 3/16", has 3 wires out the bottom, and often a metallic tab with a hole in it comming out the top.

where exactly is it located?

take a closeup of the circuit board and post, i will highlight it

typically a triac failure is hand in hand with an opto failure adjacent to the triac - 6 legged chip - Usually the triac fuses closed and replacing a triac and not opto results in new triac either remaining on or fusing again (personal experience with 4 sundance boards with this problem) an open circuit triac is possible but rare.
you won't find one at all if your blower is single speed - controlled by relay

here is a picture of the motherboard.

thanks,

looks like a triac controlled blower circuit on extreme bottom left corner above the relays - bit hard to see with sensor cables over them.
the white rectangular 6 legged chip is the opto, the black 3 legged thing with a likely silver tag and possibly screwed down to heatsink is the triac
have you tried to power the blower seperately?

yes, I took the blower motor out, and took it to a friend of my. He looked at it, and one of the brushes was broken, and he did a temp fix, and hook it up to power and it worked. So I brought it home, hooked it up, THe air bubbles did not come out of the bottom silver jets.

I have ordered a new one it will be here tomorrow.

Can the pvc that runs to those jets get clogged up. I thought about trying to blow them out somehow?

Is there a way to tell if my triac is bad?

thanks,

Stacy

also I have a sunzone ozone that is installed on this tub, could that be the problem?

The silver jets that no air comes out, are they by chance by themselves in that area? Does your other air jets operate fine? On my sundance, those two jets are for the circulation pump return, and if you are using ozone, the ozone is also induced through those two jets. They aren't air jets in any way.

the silver jets, right now are doing nothing, 3 are located in the lounger, there is a seat that has 1 on the back area and 2 near the seat area, there are others spread around the edge where the tub drop off.

it is two dark right now to take a picture but in the morning I'll add a picture of the silver jets.

thanks,

Stacy

they are your air injectors x 14
Is the airblower actually running or no noise/output at all?
if its running and no air comes from air injectors, a few things may have happened - the fan cowling on the air blower motor may have come loose, the blower is not properly secured to the pipework, the intake pipe to the blower is blocked, the outlet pipe is blocked on the way to the manifold. is the fragrance dispenser intact - ie is the basket in place? if not, has anything been dropped in there including a satchet of fragrance?

if the motor is not running, little wonder there is no air from injectors !

I installed a new blower this afternoon. there was only 2 wires and a ground. I think I installed it properly.

in a perfect world, what is suppose to happen when I push the air button, just bubbles or is water suppose to come out somewhere.

I thought about hooking up a shop-vac and blowing the lines out before I put the new blower in but forgot till I already had it in, do you think that is a good idea?

here is a picture showing the small silver jets.

Yup, those are all air jets. Any located in the seats will be for air. Are there any in the footwell?

no, there is none there. So If my blower is working why is no air coming through them?

Can they get clogged?

Stacy

I'm not sure why I didn't think of this sooner, but you should have a check valve between your blower and your tub. It may be stuck in the closed position, or worse yet, someone may have accidentally installed it backwards.

If you look back on page one of this forum, you will see a picture of my blower boot and something stuck in grey pvc with wires coming out of it,
that is the only thing I see. Do I need to take some more pics for you just let me know

thanks,

Stacy

That is just the air heater assembly for the blower... some spas have the option to heat the air so it doesn't blast cool air on your backside. What you will need to look for is a bulged out fitting between that air heater and the tub itself. It could be buried under some foam. It will most likely be about 4" in diameter at the widest point, and about 6-8" long. There is a diaphragm in there that is supposed to only allow movement in one direction. They sometimes get stuck as they age.

dare to take a guess as to where it might be. the pvc that comes out of the bottom of the blower, looks like it goes under the tub. I hate to just start digging.

any suggestions

there is probably no check valve - just aromatherapy (if fitted back then), the hartford loop (pipe loops up and down) and then the manifold
go back to previous post where i suggested causes of this problem

After checking the Sundance Spas manuals for your model year, it would appear you don't have the aromatherapy, since that was brought on a couple years later. Also based on the age of your spa, the check valve is not included either. That age of a spa has what is known as a hartford loop, just as Alacy had stated. It's basically one or two loops (manufacturer depending) of pipe that goes above the waterline to prevent water from entering into the blower assembly. Since you have a known good blower, what I would do is try to determine if you are plugged up somewhere, or if you have a break in the air line somewhere. You can tell by the sound of the blower, if it sounds labored. If you remove the blower from the spa, and run it, and then put your hand over the outlet, you will hear the sound change in pitch. If you reconnect the blower to the spa and hear the same change in pitch, you have a blockage somewhere in the blower line. If you don't hear that same pitch, you have a breakage somewhere. One last thing to check, put your hand about an inch over one of the air jets in the spa and then turn the blower on. If you can feel water flow against your hand, and yet no air, your blower may be undersized for your application.

Yesterday I drained my tub and today I got in and blew into on of the injectors not covered with water, when I blew into it the others (3 or 4) actually bubbled. So I think my problem may be between the injectors and the blower, so I'm going to try and blow the lines using a shop-vac.

I'll let you know if it works.

Stacy

I hooked my shop vac to both pvc's the bottom one did not do anything, but when I put the hose to the top one it blew air thru the injectors.

So now i think my problem is "no power to the blower".

If you look back at the pic of the circuit board, I have power to the black relay or breaker but no power to the blower?

I got verything working.

thanks to everyone that made suggestions.

One last thing. the air that comes out of the injectors is cold air. If you look at the pic that i sent of my blower do I need to change out that thing above the blower to get warm air bowing out.

thanks,