The rocker switch on the wall that is red plastic, and lights up momentarily is for GAS operation, at least it is on my unit. The plug on the outside of the unit (on mine) under the outside ventilation/access cover when plugged in, and cotter pin removed, then switched to the on position is for electric operation. They are two independent systems from each other, and can be used together even, if desired for a fast heat-up. As long as the gas tank valve is open, you can switch the red wall switch to the on position, and your gas side should aotomatically light. The red switch will remain illuminated until the water heater reaches the set temp, then it will cycle on and off, as needed. We leave our electric side on and plugged in under the outside cover, and turn it on and off at the breaker in the converter box, labeled water heater. Much easier. Just remember to ALWAYS switch it off, if you disconnect the water supply, or you'll burn out the element! Randy
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/SIGPIC]'08 V-lite Flagstaff 30WRLS
'06 Ram 1500 QC hemi Reese dual cam sway control,
K&N series 77 intake, Hellwig helper spgs. LT tires,
Flowmaster "true duals", 380 h.p., Bilstein shocks
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