Heater Trouble Zodiac lxi 400N Fault

Soonermike29

New member
May 12, 2019
2
Elk City Oklahoma
My heater is giving me a code after about one minute of heating up. The code that appears on the display says Check IGN Steps and then shuts down. I changed out my pressure switch that came apart and removed the NO Flow code and now I have this one. Has anyone ever had this code?
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
6,658
Northern NJ
Welcome to TFP.

Few threads on it:

@ps0303
 

ps0303

TFP Expert
In The Industry
Jul 6, 2011
4,001
FL
My heater is giving me a code after about one minute of heating up. The code that appears on the display says Check IGN Steps and then shuts down. I changed out my pressure switch that came apart and removed the NO Flow code and now I have this one. Has anyone ever had this code?
I had this error code recently and it turned out to be a broken ignitor.

Per troubleshooting tips, it could be any of the following.

• Broken, split, pinched or disconnected air pressure switch.
• Fan not operating.
• Fan running slow or premature fan failure.
• Air flow restricted at intake or discharge.
• Broken igniter.
• Low gas supply pressure.
• No flame at burners.
 

Soonermike29

New member
May 12, 2019
2
Elk City Oklahoma
I had this error code recently and it turned out to be a broken ignitor.

Per troubleshooting tips, it could be any of the following.

• Broken, split, pinched or disconnected air pressure switch.
• Fan not operating.
• Fan running slow or premature fan failure.
• Air flow restricted at intake or discharge.
• Broken igniter.
• Low gas supply pressure.
• No flame at burners.
I checked all of the hoses on the air pressure switch and they all looked good. The heater will get hot then shuts off with the code listed above. Will the heater still light if the ignitor is broken?
 

ps0303

TFP Expert
In The Industry
Jul 6, 2011
4,001
FL
There is that possibility because of how it is made. I would pull the ignitor and inspect it. It is easy to do.
 
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