Harman XXV Issues with Fire

[pdlong]

I have a Harman XXV, used for 5 years. Upon initial use this season, the fire will start, but cuts out after 10 minutes,. If I leave on, the fire will restart after about 30 minutes, and then cut out again after 10 minutes. The stove and exhaust is cleaned routinely. I had no issue with this in the past. Adjusting the temp, feeder speed, blower speed, etc. has no impact. Feeder works, cleaned the ESP probe, no other apparent issues. Only other thought in researching this, is maybe the control board needs to be replaced?

 

[Mt Bob]

Most common issue for low vacuum in a Harman is people do not get the fines cover sealed/back on properly.

 

[pdlong]

Most common issue for low vacuum in a Harman is people do not get the fines cover sealed/back on properly.

Whelp, I wasn't even aware of this component (thanks for pointing out), so cover had never been removed. I pulled the cover, cleaned it out, and put back on. Seems sealed correctly (i hope), issue still remains.

 

[Washed-Up]

Make sure the hopper lid is closed properly....also the fire box door, there are safety switches for both.

 

[Mt Bob]

Possible ESP probe going bad.Hard to check without the Harman tester,but is cheap to replace and try.

 

[Lineman30]

Yup... it’s ESP problem. Had my accentra few years ago do the same thing.

 

[pdlong]

Thanks. I will look into the ESP further, and start with swapping in a new one.

 

[pdlong]

replaced the probe, no luck.

 

[Mt Bob]

You need to see what is dying/not working,when it happens,I.E. auger motor stopping,etc,and check voltage to that item when it is acting up.