Raypak 106A not firing up

[rfaltin]

I have a 2yr old raypak 106 A heater that is not igniting. I hear the electronic pilot clicking, but it doesn't fire. I let it click for 30 seconds. This is the first time I'm using the heater this year. I've opened it up to clean any debris and webs.

[Teapot]

Gas valve not opening I would guess, stuck solenoid probably.

[Denniswiseman]

Does the pilot light?
Can you see the spark at the pilot?

[Teapot]

Do you think a two year old boiler will still have a pilot light?
If it has a pilot light then it's a thermocouple issue, (flame failure )

[Denniswiseman]

A spark doesn't tend to light the main burner it normally needs a pilot
I've seen boilers where a spark lights the pilot and the heat plays on the electrode sending a signal back down the electrode lead to light the main burner
Sometimes there is a break in the ignition electrode lead but it jumps and lights the pilot but doesn't send a signal back
I don't think electronic burners have thermocouples