I posted this up last year but really didn't get a response. New blood on here since then. Maybe someone can help me out.
Last year I got this Perfection Schwank Infrared 50k btu natual gas heater for the garage. It has never worked right (got it off CL.. go figure).
What happens is that when I turn it on, it ignites, flame comes across and it's fine.. for almost exactly 2 minutes. Then it shuts off. I have to wait several hours before turning it on again.
I got in touch with Rick over at Texas Infrared who has helped me and he's even stumped. I replaced the ignitor/temp sensor and the ignition control box.
Still same thing. I'm not running it off a thermostat.. just a switch that just turns it off and on. If anyone can point me in the right direction and/or come over that knows something about these that would be terrific.