Question about Pentair MINIMAX NT TSI IGNITER

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Pentair Heater shuts off prematurely when warming spa

I have the spa set to 100 degrees. Prior to turning on the spa heater the water temperature is about 60 degrees. The heater warms the spa fine until the water temperature reaches about 94 degrees. At this point the heater flame shuts off for a couple minutes. The blower keeps running. The Service Heater lignt comes on. The heater flame comes back on for about 20-30 seconds. During this time the Service Heater light goes off. The flame then shuts off and the heater fan keeps blowing. The Service Heater light comes on. This keeps repeating itself for a dozen or so times until the spa reaches 100 degrees.

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  • Pentair Master
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Check gas pressure could be running out or overheating

Posted on Oct 07, 2017

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4 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 90 Answers

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

Kieran Ruppert

  • 990 Answers

SOURCE: Pool Heater Mis-reading Temp.

Your temp sensors are on the heater, a small tube that slides into the water manifold, usually on the left side. On the remote it will be in one of the pipes coming from the pump or the filter. If it is after the heater you should move it to between the filter and heater. It will be a tube that is in the pipe with a stanless steel clamp holding it in place.
To find out wich one it is you will need to remove the remote from the system by takeing the wires that go to it from the wireing inside the heater and wire nuting the wires in the heater together. If the heater runs normal then it is the sensor for the remote if not it is the sensor for the heater. Let me know how you do and if need be we can get a little more specfic for your system. good luck.

Posted on Mar 29, 2010

pshaffer

  • 1 Answer

SOURCE: Pentair matertemp 400,000 BTU heater cycles on & off

My pentair matertemp 400,000 BTU natural gas heater cycles on and off before reaching desired temperature. I completely cleaned the DE filter and flow should not be an issue. When running the spa the pressure is 25. When running the cleaning system (polaris pop ups) the pressure is 30. Burner fires for 80 seconds then shuts off, reignites after 53 ceconds.Any tips on what might be the issue with the heater

Posted on Jul 23, 2011

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Hs error code what does it mean?


Water Temperature Sensing Error

A) Inlet water temperature sensor is reporting a temperature in excess of 104 degrees. Normal operation resumes 2 minutes after inlet water temperature sensor reports temperatures of 104 degrees or less. This error functions in both normal and remote thermostat modes.
or

B) Inlet water temperature sensor is reporting a temperature change at a rate faster than 6 degrees in 60 seconds, indicating a potentially damaging low water flow condition. Normal operation resumes when temperatures stabilize. If this condition is detected 3 times, the heater will lock-out until the electrical power is cycled off and back on.

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Pool heater throws code h5? smoked


HS
Water Temperature Sensing Error

A) Inlet water temperature sensor is reporting a temperature in excess of 104 degrees.
Normal operation resumes 2 minutes after inlet water temperature sensor reports temperatures of 104 degrees or less. This error functions in both normal and remote thermostat modes.
or
B) Inlet water temperature sensor is reporting a temperature change at a rate faster than 6 degrees in 60 seconds, indicating a potentially damaging low water flow conditon. Normal operation resumes when temperatures stabilize. If this condition is detected 3 times, the heater will lock-out until the electrical power is cycled off and back on.

Jun 10, 2014 | Hayward H Series Pool & Spa Heater...

1 Answer

Heater only warms water to 98 degrees


temp sensor or if control box make sure heater set to 104

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Balboa vs500


Your economy spa is equipped with a hot stick. This "hot stick" is nothing more than a PVC manifold that forces the water through multiple 1/2" ports that creates enough friction for the water to heat itself. YOUR HOT TUB HAS NO HEATER. The benefit is that there is no heating element to corrode and replace. The down side is that it takes quite awhile to heat the water. If you start with water that is 55-60 degrees it will easily take 48 hours to hit 100 degrees. Keep in mind that is dependent on the outside air temperature. Good luck with that!

May 02, 2013 | Dream Maker Spas Dream Maker Ez Spa Hot...

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My heater ignites and blows really hot exhaust


The water is mixed on the back side of the heater and will exit the heater at 7-11 degres hotter than it came in. This will keep people from being scalded at pool side. So what you have sounds normal.

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My Reliance 606 40 gallon water heater only heats up enough hot water to fill a bathtub. We've drained it, the pilot light is fine, it heats up the water really hot, but it just doesn't seem to be able to...


How big is your bathtub? Is your water heater set on the hottest setting? What is the temperature of the hot water at the tap?

Keep in mind that hot water can cause severe burns. Children and those with diminished mental capacity can be seriously harmed by hot water.

The "40 Gallon" rating on the water heater is usually the amount of hot water the unit can produce in one hour. So the tank, and the amount of immediately available hot water, might be smaller than 40 gallons.

My bathtub is 2 feet wide by 1 foot deep and 4 feet long. This is 8 cubic feet or almost 60 gallons. So a 40 gallons of water at 120 degrees, mixed with 20 gallons of cold water (60 degrees), fills the tub with 100 degree water. My January cold water is 42 degrees, so it will take 40 gallons at 129 degrees to fill the tub. If the tub is cold to start it will take even hotter water.

So the water heater might be just fine.

Possible solutions:
1. turn the temperature up on your water heater- or the temperature control could be malfunctioning and not getting the water hot enough.
2. insulate your hot water pipes so that the water loses less heat on the way to the tub.
3. bigger water heater.
4. smaller bathtub, or less full bathtub.


Jan 04, 2010 | RELIANCE ELECTRIC WATER HEATER

2 Answers

Heater will only heat spa water to luke warm.


sounds like it may be the thermostat on the heater. You are correct to check the filter first. if it is clean then it is probably the thermostat

Dec 19, 2008 | Jandy Laars Lt 250,000 Btu Heater

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