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I apologize for the holiday delay.
Do you still need assistance?
Hello and thanks for using this service, if you have been waiting do not worry or get upset I am just one of the techs on here and I try to get to as many customers as I can and I just picked up your question now. Please give me time to respond sometimes I get your replies late so there may be a delay in my response.
I am sorry for the delay and sorry the other tech left, the 3 blink code is an exhaust sensing probe failure and will not allow the unit to work unless the probe is good, it is easily damaged if cleaning it out you should replace that and it will work again.
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