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Lt 400n hot surface ignitor burns out - Pool & Spa

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Do you mean that it keeps breaking? It may mean that it continues to heat after the burners have been lit, or may be getting water on it. How often does it break?

Posted on Apr 20, 2013


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How to replace Hot Surface Ignitor on Jandy LX 400 L

Be very careful, that is not a homeowner repair. If your heater is a Lo Nox 400 yes the burner comes out, you will probably find the wires are burned and there are other problems causing ignitor failure.
The standard lx400 the ignitor is reachable from the front.

Apr 24, 2014 | Pool & Spa

1 Answer

My amana furnace will not stay lt. When this first occured last year, I replaced the ignitor and it worked for weeks. The it stopped working again and i bought anothor ignitor. it worked well for about...

Hot surface igniters are very unforgiving and brittle. The common causes of repeated cracks is moisture, oils and stress. Be sure the igniter is perfectly flat and not being pulled or pushed on any part of its mounting surface. Look closely around the crack. If any condensation hits it when hot, it will leave a slight discoloration, and it will crack. Also, the oils from your fingers will cause a weak spot when its heated and will crack it.

Dec 12, 2013 | Heating & Cooling

1 Answer

Hot surface ignitor keeps burning out

make sure if wiring correct or possible water leak on it

Apr 29, 2012 | Pentair Minimax NT Heater

1 Answer

Carrier Weathermaker 8000 ignitor won't glow...

Hi, If you can take a good light and just look at the glow end of the hot surface ignitor, 95% of the time you will be able to see where the break is on the glow surface. If you have excess to a electrical meter, you would unplug the hot surface ignitor, that is the correct name for it and set the meter for continuity. Touch each lead from meter to each wire and you will show a reading of some kind if it is good, and nothing if it is open or burned out. If you are lighting it by hand (dangerous) it shows that the inducer motor, flame sensor, and main gas valve are in good shape. I know when its cold you have to do what it takes. If the main controller which may be a control circuit board with a red led light on it, or it may be a blue, or gray, white control box with wiring going to it with markings such as TH, TR, C, MGV, PV, Ect. on it and would be right where you are working to light the pilot manually. If it runs when you light it by hand, the control box is good or it would lock out when you would light it. Check out that hot surface ignitor/ glow plug. The part number is imprinted on it. It is either a 120 volt or may be 24 volt hot surface ignitor as some models have one or the other. A tip when installing the new one. Do not touch the surface end that glows with your fingers in anyway, as the oil from your fingers will cause it to burn in half! What happens to these hot surface ignitor is dust settles on them over time and causes them to burn in have or a crack in them. Rheem and Ruud units came out with there's mounted in a horizontal position and they kept burning out fast as dust would build fast. They finally come up with a bracket to mount it in a vertical position and solved this problem. Anyway, unplug it, pull it out and inspect it very good for any signs of a tiny crack or what ever. Ohm it out if you have a meter. You can buy one at a appliance parts house and they are very reasonable. Please keep me posted on what you find. I will be here for help. I wish you the best as I know you can do this.

Apr 10, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

I have a 90 plus Ruud furnace that will work when I light the furnce with a match when the furnace is calling for heat

Sounds like the ignitor. Your unit most likely has a hot surface ignitor. The hot surface ignitor is located in front of your burners and usually has two white wires leading you to it. It is a wear-and-tear item that can be expected to need to be replaced every couple of years or so. It would not hurt to keep a spare near your unit at all times.
How to test a hot surface ignitor

Mar 29, 2010 | Heating & Cooling

1 Answer

RHEEM RGLE-10EQAGS Gas Furnace - Intermitent. Fans come on, Hot surface Ignitor comes on, then sometimes Gas Valve opens and all is fine, Other times, gas valve doesn't open and Hot surface Ignitor goes...

The sequence is Igniter comes on, valve comes on, flame sensor senses flame. If no flame is sensed after 3 tries, a lockout occurs. If you have a volt meter, check for 24-27 Volts AC coming to the gas valve, if your getting voltage to the valve but no gas, your gas valve is defective. It could be a intermittent problem, no matter, still a bad valve. if no voltage to valve, defective circuit board. 

Dec 29, 2009 | Heating & Cooling

1 Answer

Using alot of hot surface ignitors

don't touch the surface of the igniter when handling it, and don't bind the mounting bracket when you tighten the capscrews, the bracket and igniter should be firm and no loose/movement if you try to move the bracket. also make sure the igniter is going back off after the burners light

Feb 28, 2009 | Tools & Hardware - Others

1 Answer

It is an electric oven.

It doesn't have a hot surface glow ignitor????
Do you mean it doesn't have a hot surface glow indicator???
AND?Whats your question?

Sep 06, 2008 | Ovens

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