Question about Pentair MiniMax 100 Aboveground 100,000 BTU Propane Gas Electronic Heater

1 Answer

How long should it take to heat spa only

Spa is taking 3 plus hours to get to 103 I tried changing insides of three way valve on return. Side to no effect

Posted by Anonymous on

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  • Pentair Master
  • 1,631 Answers

20 to 30 minutes.
if this is a pool and spa combo system, then you are not only sucking water from spa and returning only to spa!
you have a incorrect setting of the valves. It needs to be 100% suction from the tub, and 100% return of water to the tub.

Posted on Apr 05, 2015

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Posted on Jan 02, 2017

rcampsr
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SOURCE: Heater cycles on and of, pool/spa does not reach desired temp

hello, It sounds like you may not be getting circulation thru the heater. Make sure the valves are open to allow water to pass thru the heating system. Some systems use a bypass on the heater so there is not a lot of wear on the coil system in the heater. If it is not circulating it will get too hot and the safety shut down will occure. If you are getting water circulating thru the heater, then the thermocouple or auto start igniter system is not working correctly. It is trying to start and can't then recycles. If the burners are igniting on the startup and then shutting back down you may have a bad control unit or thermal sensor unit. Since the unit is gas have a professional service it for you. Good Luck, RAC

Posted on Apr 20, 2009

  • 366 Answers

SOURCE: MIni-Max 400 heater cycling

sounds like you may have a water chemistry problem more than a heater problem. High pH coupled with the heat of the exchanger in the heater will allow the calcium in the water to precipitate and scale the tubes of the exchanger. Make sure your water is balanced, pH 7.4-7.6. Water balance factors include pH, total alkalinity, calcium, TDS, and temperature. Use the langlier saturation index to determine your water balance. If your water is balanced, you may have a bad thermal governor. If you hear the heater water hammer and bang around and then shut off, you definitely have a scale buildup in the heat exchanger tubes. Hope this helps...

Posted on Sep 17, 2009

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SOURCE: Pential Easy Touch Pool/Spa remote says the water

you can change the calibration on the temp. or how did you check the sensor

Posted on Oct 05, 2009

  • 990 Answers

SOURCE: E04 message on MiniMax NT 400 DV..Help!!

Your EO4 message tells you you have a fan problem. So ether your fan is diying wich you would hear or you have a bad presure sensor in your exaust. A new fan is a little pricey but the sensor is reasonable for heater parts. I can't be sure but I believe it ether screws onto or into your exaust and it just plugs on to your control board. If your sensor is going bad their is a reason and this should be addressed. It should be in your by-pass or your gas pressure. But as far as a new heater, not untill you have water coming from the cabnit. It is sometimes easer to sell new than keep up with new, Good luck let me know how you do.

Posted on Dec 03, 2009

  • 990 Answers

SOURCE: Purex Triton Minimax 400 pool/spa heater not igniting

This sounds like you have a problem with your pilot. You can check this with a small mirror to see if their is a spark when you turn it on. If you have any soot build up on the pilot that will stop the spark and keep it from lighting also. If you have a short on your pilot wire this could be the problem also. I hope this helps, good luck.

Posted on Dec 12, 2009

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1 Answer

Which positins do my actuaters need to be for heating pool


The valve actuator switches are set, to match proper flow of water thru the proper designated systems plumbing, per the selected system the automation system controls.
I am making a presumption that you have pool/spa combo, and you have an automated controlling system? With that system... Are automated valves controlled by valve actuators.
Your question was not specific enough, therefore I have to guess as to what you are asking.
When you choose 'Pool' ON - and Heat on, if there is a demand for additional heat, the heater will come on. If it was on SPA mode when you chose the above, the valves will automatically start turning, so that water will be sucked from the pool and then returned to the pool. SPA will sit stagnant during this time.
Now here is where I am guessing...
If the water is sucking from spa but returning to pool, the system is 1/2 correct (valves are 1/2 correct) and you need to manually have the 'Suction Side' valve turn 180 degrees. The automation will not be affected... To do this, locate the Manual 3 position switch on the valve actuator. Then flip it to exactly opposite position. The switch is labeled 1, Off, and 2.
Hopefully it was not in off position... Not a problem, just a little more explanation required to set it correctly. So if it was 2, flip to 1, and vice versa. IF it was on Off then the valve was not moving when automation gave command to begin Pool usage and Heat ON. Flip the switch until you get the flow of water Sucking from pool.
Note*** The valve handle has a 'Flag' opposite the handle as part of the handle, it's semi triangular , and when that flag is over the pipe, that pipes PORT is Closed! So if you know what the two pipes going into your three way valve, then into the pump are because they are labeled, then it is easier... Flip the switch until the flag part of the handle is over the pipe marked Spa.
The same explanation goes for the return side valve, if water is returning to the spa, and automation is set for 'Pool' operation, you will know this either because spa is spilling over into pool, or the flag portion of the valve is over the pipe marked Pool. That flag portion needs to be over the pipe for Spa Return.
Notice the little switch on the right side of pic attached... Near the word Torque. And the triangular part of the handle as well.
Good luck.5_4_2015_3_32_47_am.jpg

May 04, 2015 | Pool & Spa

4 Answers

I have a Jandy Aqualink pool system. When I turn on the spa and heater, the spa drains..I've never had this happen but don't use the spa much. What should I check?


His is not typically a control panel issue but more likely a valve issue.

Your valves are set as follows wih a few minor variations.....
Pool mode- sucks from pool skimmer and or pool vac line and returns water to both the pool and spa.
Spa mode - self contains the spa , meaning water is sucked from the spa and returned only to the spa.
If your spa is draining then most likely one of your electronic valves is failing...most likely it's the return valve so what is happening is the water is sucked from the spa and returned to the pool instead of self containing the spa.
Easy check is to be next to the equip when spa mode is selected and two valves should move and align properly, the return side valve is most likely not moving or it is not moving into the correct position.
The fix is either adjusting the valve acuator or buying a new valve acuator.
Another thing to check is on the main panel circuit board to ensure the return and auction 3 pin plug ins are still connected.

Apr 05, 2015 | Jandy Aqualink Rs4 One Touch Control...

2 Answers

How do I deflate spa


To deflate the portable Therapure spa 050006 is easy. The trick is to realize that the black valve used to inflate is in fact a double valve. Remove the square threaded cap to inflate it.
1. To deflate the spa leave the black square threaded cap and below that you should find a round or winged coupler.
2. Unscrew this coupler off and immediately the air will start to escape. It shouldn't take more than about 2 minutes to deflate and you are ready to pack it away.
3. Return the valve (before doing so you could use a vacuum to suck out as much air as possible.)
4. Lay out the spa floor in a circle
5. Fold the three sides to the centre
6. Then lay the power unit on the folded sides.
7. Remove the coupler one more time to squeeze out any remaining air and then return it.
8. Roll the up the side to the original size of the spa before you opened it the first time.

Sep 18, 2014 | TheraPureSpa New 2 - 4 Person TheraPure...

2 Answers

How do you deflate a portable spa


To deflate the portable Therapure spa 050006 is easy. The trick is to realize that the black valve used to inflate is in fact a double valve. Remove the square threaded cap to inflate it.
1. To deflate the spa leave the black square threaded cap and below that you should find a round or winged coupler.
2. Unscrew this coupler off and immediately the air will start to escape. It shouldn't take more than about 2 minutes to deflate and you are ready to pack it away.
3. Return the valve (before doing so you could use a vacuum to suck out as much air as possible.)
4. Lay out the spa floor in a circle
5. Fold the three sides to the centre
6. Then lay the power unit on the folded sides.
7. Remove the coupler one more time to squeeze out any remaining air and then return it.
8. Roll the up the side to the original size of the spa before you opened it the first time.

Nov 23, 2013 | Therapure Pool & Spa

1 Answer

My controller says it is in spa mode - trying to heat only spa- but water is spilling into pool. I have 2 jandy valves, only 1 moves when I change from spa/pool mode. Any suggestions?


The valve actuator on the suction side is either bad or the toggle switch on the back is in the wrong position. There are 3 positions for the switch on/off/on. It should be in either be all the way up or all the way down. In spa mode move the toggle switch. If it still doesn't move then you have a bad actuator. If it moves someone has moved the switch.

Oct 21, 2013 | Jandy LAARS VALVE, PRESSURE RELIEF 75PSI...

1 Answer

I have a pool with a built in spa and I need to Isolate the spa from the rest of the pool. So I can heat it and not the whole pool. I don't know how to add pics so I will describe the best I can. I have 2...


the actuator at the intake of the pump divides spa intake and the pool intakesmake sure switch on actuator is on 1 or 2 if in pool mode the off should be at spa intake the out inpool postition the off should be to the spa outlet

Feb 18, 2011 | Jandy Pool & Spa

1 Answer

SPA WILL NOT HEAT PAST 94 DEGREES. i HAVE IT SET TO 103 AND IT HAS NOT MOVED PAST 94 DEGREES FOR OVER 1 HOUR EXACTLY WHAT BUTTONS SHOULD BE LIT ? IN OTHER WORDS IS THE AIR BLOWER LIGHT SUPPOSED TO BE...


if hook up to the firemans switch turn heater all the way to 104 degrees if using 4 pin connector for aqua link to heater set spa temp to 104 and make sure on aqualink spa heat is enabled and 104 degrees

Nov 30, 2010 | Jandy Aqualink Rs4 One Touch Control...

1 Answer

I need the valve positioning sequence to isolate the spa from the pool. New owner.


with a multitude of possibilities... the best answer i can give you is to look on the suction side of the pump... there should be a three way valve... if you rotate that valve 180 degrees your going to be sucking from your spa main drain (assuring that they had never plugged it)... then on the return side plumbing there should be another three way valve ... rotate that as well and it should only be feeding the spa... ..sadly without a picture this is the best answer i can give you.

May 11, 2010 | Pool & Spa

1 Answer

Hi! I have a Hayward Pro pool/spa system with Jandy valves and I'm trying to figure out how to switch them from pool to spa. Either I empty the spa or I'm heating the whole pool. Help please!


This is tough cause I can't see the valve setup. I have to assume they are manual valves. Normal operation probably takes some water out of the pool and spa than puts it back into both. To heat the spa, set the intake valves(the ones in front of pump) to take water from only the spa. Set the jets(valve(s) on output side of filter) to send water back to only the spa. The pool will be out of the loop. Normal operation usually has water taken out of pool and spa than put back into both. Make sure to put more water back into spa than you take out, (Adjust valve)

Apr 23, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

Operation my Pentair 2" Pvc, 3 Way Lube Free Diverter


Every valve is unique to the system in which it is plumbed. You cannot specifically say that there is one way to turn a valve and then apply it to your situation. So, there is a way to determine what you need. Three way valves should be plumbed with the water flowing into the valve at what one would recognize as the "leg" of a letter "T".

Assuming the valve is plumbed this way, the source of flow to the other ports is either from the pool/spa or to the pool/spa. for a valve plumbed in front of a pump, the direction is from the pool/spa. For the other 3 way valve, it is to the pool/spa.

The easiest way to detemrine flow is point the valve handle to one direction. Keep in mind that water flow travels under the valve handle. So, if you see water flowing from your skimmer at the pool, the direction the valve handle is pointing is FROM the pool. The opposite port of the valve (180 degrees) is FROM the spa. Do the same for the other valve. If water flows to the spa with a jet action as opposed to a small trickle, you have directed flow TO the spa.

In general, both handles will be pointed in the same direction. At times, they may not so that is why you need to determine flow and then label thew ports.

It is not wise to run a system with the flow not set for POOL suction/POOL return or SPA suction/SPA return. Having the valves in opposite direction can result in an elevated spa draining to a level equal to the pool.

Nov 02, 2008 | Pentair 2" Pvc, 3 Way Lube Free Diverter...

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