My spa blower shuts off after 1 minute or less. I’m pretty sure it’s because of the protection from overheating or burning out. I provided a diagram of my plumbing and valves when running my spa. It’s a pool/spa combo. When I run the blower without the pool pump or jets turned on, the blower runs without any issues and air is pumping out of all jets. However once I turn on the pump for some pressure, I notice majority of the air only comes out of two of the 7 jets and then the blower goes into protection mode and turns off. The pool and spa cake with the house and I didn’t get any documentation or info on the setup. I have the valves set as in the image. The spa suction is open and the spa return is open. The pool suction, cleaner, and return are closed to keep the hot water circulating in spa and heater.
Blower turns off quickly
- Thread starter Davie
- Start date
- Jul 21, 2013
- 65,504
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Welcome to TFP. Please Read This BEFORE You Post and tell us details about your pool in your signature. Knowing those details lets us help you better.
What model is your blower?
How old is it?
Have you opened it up and look at its internal condition?
Some blower installations have a check valve. Have you looked to see if you have a check valve and it is in good condition?
What model is your blower?
How old is it?
Have you opened it up and look at its internal condition?
Some blower installations have a check valve. Have you looked to see if you have a check valve and it is in good condition?
Thanks I’ll add to my sig. meanwhile the blower is brand new Silencer 2.0 HP. Came with a check valve and is new and working. As I mentioned the when the pump is off it works perfectly and doesn’t shut off. It’s when I turn on pump and it shuts off in less than a minute.
- Jul 21, 2013
- 65,504
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Is 2HP the appropriate size for your setup? See http://www.airsupplyflorida.com/wp-content/uploads/2014/08/installation-guide.pdf
That's a good question. It's possible the original installer sized it wrong, but I have no idea how many elbows and turns or even if I have a Hartford loop. The blower is about 31 feet from the spa and according to the documentation a hartford loop is required. I think 1.5HP is prob the right size. I read on one post someone drilled holes to reduce the pressure and that helped him. I guess I can do same to try that and if no luck hire an expert.
- Jul 21, 2013
- 65,504
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Correction on jet count is six 3/4" jets. In trying to calculate the correct HP blower I came up with:
1. water height = 32"
2. supply line estimate 45' = 4.5"
3. 90 degree turns estimate 3 = 1.5'
Total 38" of Pressure which is a 1hp motor
Next based on jets
Six 3/4" (.1473) jets = .8838 *this is barely over the 1.0 HP range of .85
So looks like 2hp is definitely too much and 1.5 could also be too much. Should I try a 1.0hp?
Dave
1. water height = 32"
2. supply line estimate 45' = 4.5"
3. 90 degree turns estimate 3 = 1.5'
Total 38" of Pressure which is a 1hp motor
Next based on jets
Six 3/4" (.1473) jets = .8838 *this is barely over the 1.0 HP range of .85
So looks like 2hp is definitely too much and 1.5 could also be too much. Should I try a 1.0hp?
Dave
Last edited:
Can you shut the pump valve off, turn on the blower and slowly open the pump valve and see at what point the blower shuts off?
- Jul 21, 2013
- 65,504
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Did your blower and water jets together ever work properly for you? Or did you inherit this problem when you bought the home?
I inherited the problem with no documentation or info. When I first turned on the original blower, water was coming up into the old blower and had a pool tech come out and install a checkvalave.
I also replaced the jets. I’m pretty sure I installed the same jets as original but could that be an issue too if I have the wrong jets installed? They just popped in.
I also replaced the jets. I’m pretty sure I installed the same jets as original but could that be an issue too if I have the wrong jets installed? They just popped in.
- Jul 21, 2013
- 65,504
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Hmmm ... I would examine the jets carefully. Especially the ones where the air is not coming out. You still have the old jets you replaced?
No definitely tossed those. Pretty sure I ordered same as old. Would it be ok to pop them all out and try running jets and blower?
- Jul 21, 2013
- 65,504
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
I think so, but post a pic of what you are removing so we are on the same page.
The way you spa should be plumbed each jet should in the back have an air and water connection. Something like these - Old Style Poly Jets The water and the air flow on separate lines and combine at the jet.
I wonder if your replacement jets are too deep and are blocking the proper flow.
I have the same problem so just posting in here to watch this this and not to hijack....
Ok jets were a B to get off. From the opening to screw on housing is 1.5”. To the back of housing it 3.25”. There is hole near back of housing that u can see almost looks like it shouldn’t be there but it’s on every housing.
- Jul 21, 2013
- 65,504
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
That hole is the housing is interesting and i have no clue if it is normal or what the effect would be.
Any markings on the housing? I would like to find information about it and see what a new assembly looks like.
Any markings on the housing? I would like to find information about it and see what a new assembly looks like.
No marking on the housing but I turned on the blower and confirmed the hole is where the air comes from. I’m assuming that hole aligns with the area of the jet before the rubber gasket.
- - - Updated - - -
To me looks like a hack install and they poked holes in the housing for the air. Not sure normal but doesn’t look like it came from factory like that.
- - - Updated - - -
To me looks like a hack install and they poked holes in the housing for the air. Not sure normal but doesn’t look like it came from factory like that.
I’m assuming the housing is this model:
https://www.hottubessentials.ca/waterway-poly-jet-body-210-5830.html
https://www.hottubessentials.ca/waterway-poly-jet-body-210-5830.html