I just had a brand new Jandy 260 jxi installed. The company I bought it from did all the plumbing but doesn’t do electric or gas line. I just had a gas line ran yesterday. I converted the electric to 120V myself. When I powered the unit on the fan starts blowing for about 30 seconds and then the heater starts. It runs for about 3-5 seconds and then fades off. It does this 3 times and then I get the IGN Fault Check. I asked the guy that ran the gas and he said it could be that the polarity is reversed and occasionally this happens. I thought it could be a lack of gas supply. Please point me in the right direction.