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I have E04 error code, fan runs but no ignition or gas or gas smell

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Troubleshot vaccum switch determined it was operational (Use Pentair's website for service instructions on the switch) Fan speed too slow due to worn out motor. Replacing blower assembly

Posted on Aug 02, 2009

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SOURCE: Fan runs, no ignition, no

Code E04 is a fan issue. It might be the fan, a tube or the pressure switch. I hope this helps.

Please vote on this answer. Thank you.

Posted on Aug 24, 2011

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E04 minimax error code


check to see if you have adequate gas pressure sounds like it running out of gas pressure

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Since you said you replaced the fan, and flow valve. Did you re-install the pressure switch correctly? it will look something like attached image. This is more than likely the cause if you did not replace with the fan or reinstall correctly... or it might have been the cause in the first place...
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Fan runs, no ignition, no gas smell. E04 on LED. The fan is running louder than normal, but the heater was working up until today.


Code E04 is a fan issue. It might be the fan, a tube or the pressure switch. I hope this helps.

Please vote on this answer. Thank you.

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1 Answer

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It sounds like your ignitor is defective, it happens often, depending on your location, you may be able to purchase one, but I would advise having a service tech do it.

The manual for troubleshooting and repair can be found at this link:

http://www.staritepool.com/pdfs/MiniMaxNTServiceManual.pdf

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1 Answer

Power OK, can smell gas, but no ignition. Get the


The EO4 is listed as a Fan Failure. However, these heaters have a tendency to go EO4 for no apparent reason. It is what I call the "heater hic-cupping". The easiest thing to try first is to reset the heaters computer. To do this, you will open the right hand side door, find the POWER toggle switch and move it to OFF. Then turn off the Circuit Breaker to the heater,shutting down all electrical power to the unit. You will need to wait about 15 to 20 minutes before you do anything else.

After that time, revese the order. Turn on the Circuit Breaker, then the Power Switch on the heater. Try and start the heater. The computer will "reboot" flashing codes like --- or 888, do not worry about those. When the display panel comes back to normal, check what the heater is reading for a water temp and compare that to what the water is actually. Hopefully, they will be right on, or close, together. The heater will try to start 3 times before going into "Lock Out" mode.

If it does start, it was just the computer hic-cupping. If it does not start and you receive another EO code, on the backside of the Display Panel, there are Diagnostic Lights. If there is a light on by a couple of letters, like HLS or PS, then that is what is malfunctioning.

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If your standing facing the back of the machine, you will need to change the top right fan that cools the IH,power supp. there are two fans which need to be replaced, the other fan is behind the sc pcb but that will give a different error.

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