My Peerless PINNACLE PI-80 rev1 runs for approximately 20 to 30 minutes and then shuts down and shows error code F13. The manual says to Replace the combustion air fan or Replace the control board in this order. Can anyone tell me how to check if the combustion air fan is the problem? Also I am located in lake county IL. Can anyone provide the name of a company that services home boilers in this area?
Thanks in advance for any and all help.
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