Question about Pentair Minimax NT Heater
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Posted on Jan 02, 2017
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.
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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