Question about Pentair Minimax NT Heater

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My blower comes on the heating element comes on the gas comes on then the burner lights for about 4 or 5 seconds and goes out. This process is repeated 3 times then faults out, I have changed the flame sensor with no change.

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  • 6 Answers

Thermo coupler. cheap and easy. does it hold a steady flame?

Posted on Nov 08, 2012

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Posted on Jan 02, 2017

adamh294
  • 310 Answers

SOURCE: I installed a new Pentair

An E04 can be alot of things.
If the fan is working, then the first thing to check would be the air/fan switch, or the air switch tubing itself. They installed the air switch tubing right over the burner tray so it melts and cracks quite often. This is one of the readons this model was discontinued.

The air switch is inside the cabinet on the right side behind the little metal box. remove the screws to access. The air switch is about 3" and round with a vinyl 3/8" tube coming out of it.
Also remove the top side panel on the right side. Now follow the air tubing from the switch to the blower in the side panel. Remove this tubing and inspect. Chances are there are som small cracks and things you will find. If this is the case, replace the tubing and try to restart heater.

If you did not find the tubing to be bad, then its your air switch. I would like to list the part number, but the model and BTU's were not provided above. Here is a link to the manufacturers parts and manuals list.

http://www.pentairpool.com/pool-owner/manuals/section.php?s=28

Hope this helps
BTW, a 1.5" gas line might be too much gas if its run all the way to the heater. As per the manual, 1.5" can be used up to 10 feet from heater, then bush down to 3/4". Gas pressure should be checked before and after the gas valve to ensure that the correct pressures are there. Pressure guidelines can be found in the above manual and should be followed strictly.

Posted on Apr 26, 2011

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Gas dryer


Welcome jessegonzales
Check the outside vent leaving your house does not have a screen on it.
Take the screen off. Even half blocked and the dryer will not dry well.



Possible solutions

1. Defective Heating Element

The heat produced from heating elements is measured in watts and a normal heating element will produce about 4500 watts of heat. If the heat element is shorted to the case, this will cause the heating element to operate on 110v and use only about 1/2 of the element wire. In effect, the heat produced will be only about 1/4 of the amount that should be produced and the end result is an increased drying time.
The normal method for checking a heating element is to check it continuity. With the element unplugged you can check the continuity from one wire post to the next. If the circuit is open, thent he heating element is faulty.
However keep in mind that the element could be shorted to the case as described above. In this situation it is possible to have continuity, but the element still be the source of the problem.
Let me know.
Please remember to leave a rating

2. Defective Heating ElementThe heat produced from heating elements is measured in watts and a normal heating element will produce about 4500 watts of heat. If the heat element is shorted to the case, this will cause the heating element to operate on 110v and use only about 1/2 of the element wire. In effect, the heat produced will be only about 1/4 of the amount that should be produced and the end result is an increased drying time.
The normal method for checking a heating element is to check it continuity. With the element unplugged you can check the continuity from one wire post to the next. If the circuit is open, then
the heating element is faulty.
However keep in mind that the element could be shorted to the case as described above. In this situation it is possible to have continuity, but the element still be the source of the problem.

3.Defective Thermostat
The thermostats are responsible for maintaining the proper temperature in the dryer. Check the exhaust temperature of the dyer and if the temperature is above 150 degrees, you will most likely need to change the operating thermostat.

The thermostat can also fail in the opposite mode. It can prevent the element from heating at all. A failed continuity check at room temperature will verify this condition.

There are some special thermostats that are single pole double throw. These thermostats are often used to control the timer when set to the Automatic Dry cycle. If the dryer timer will advance in the Timed Dry cycle but not the Automatic Dry cycle, then the thermostat could be the problem.

4. Defective Gas Valve Coil (Gas Dryer Only)

If the gas dryer will light once but will not relight until it cools down, it is likely the gas valve coils are faulty. These coils loose some strength when subjected to heat. When they become old, the addition of heat may be enough to prevent them from opening the gas valve when hot. However the coils still work when when cool.

An easy way to diagnose the coils when the burner is not lighting, watch the ignitor. If the the ignitor glows for 10 to 15 seconds but no flame is created, then the coils are faulty. If the ignitor is not glowing the problem is elsewhere.

Recent Customer Symptoms:
The dryer burner doesn't always come on when starting. If the burner does come on, once it goes off if won't come on again until the dryer cools down.

One of these will solve the problem!
Thank You
Huuum.
Please remember to leave a rating

Jul 29, 2008 | Frigidaire FGQ332ES Gas Dryer

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