We have an SR200NA Sta-rite gas heater that has been working fine for about 4 years (ever since we bought this house). This season it will not work and the service heater light is lit. I did open it up and did some troubleshooting. The AFS indicator led is lit on the underside on the control board. In the manual this indicates either the wiring leading up to the blower is bad or that the blower itself is bad.
Any ideas on how to find out for sure what is wrong with it? I have priced blower kits and they run around $400 on various internet parts sites. Is a blower something I could replace? I am pretty handy. On the other hand this heater is 10 years old (the previous owner left the receipt) and would it just make more sense to buy a new one. I have found the exact same model selling for around $1200 before shipping. I am just concerned that if I spend $400 fixing it something else might go bad soon on this unit since it is 10 years old.
Thanks for any help.