Mike is correct. The igniter goes on and off with the gas valve. Each time the gas valve shuts down when the fridge is satisfied in temperature. When it calls for cool, the gas valve turns on and then igniter starts clicking. It stops clicking when heat is sensed on the electrode.
So unless Mr Tweety wants to be running back and forth with a match, need to get the igniter fixed. Ha HaÖ.
This is not a gas pilot operated gas setup like he may be thinking.
However here are a few things that might help.
The igniter is wired in parallel with the gas valve. When the gas valve getís the signal to turn on so does the igniter. The good news is since he lit it with the match and it stays on, the flame sensor is working and the PC boards is OK and so is the gas valve.
Have him check the yellow and black wire feeding the igniter that is it not corroded and not making contact. Make sure the 12 volts is off to the TT. No shore power, no battery on. The wires may be loose or the ground black wire is corroded. Basically just checking that it is actually getting 12 volts.
Down at the electrode there is a gap that the spark has to jump. The distance should be in your Dometic manual. I do not have access to mine here. If the gap is right well it is not that unless the ceramic insulator is cracked and grounded out the electrode
Those where the easy things. After this it may be to change parts. A new igniter. It is the black box next to the control board with a black, yellow and high voltage wire coming out of it. Not hard to change. Just make sure the 12 volts is off in case it fires the spark signal. 10,000 volts jumps and inch. It is high voltage output.
Good luck and have him report back. Here are some picís I had of the area.
The electrode area.
The entire setup, The igniter is the black box under the gray cooling unit tank
Here you can see the yellow wire running to the gas valve that powers the igniter
And here is the igniter
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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