Worst bloody time of year and our heater looks to have died, being an older model lots of parts are obsolete (1996). Igniter ,fan etc works but keep getting the rest light flashing and pressing the button doesnt fix it.
I have tried the rest button on the circuit board and then i get the ALM diagnostic LED flashing and even google doesnt tell me what that means, i have cleaned out the jets as it appears to be a gas issue as i can hear the solenoid click but no gas is released. Cant find anyone that looks like a thermocouple or thermistor, i'm thinking the gas control valve is dead and they are no longer available.