Jandy Laars LX Pool Heater / 400,000 BTU / Natural Gas "back pump spark" Questions

back and it will start up again.now wont start at all. cant figure it out new fuel pump Iginition modules (AKA Engine Control Modules - ECMs) control spark and timing to an engine. Usually they either

...back wash heater will come on for couple secounds then turn off but if i put in filter position will not try to come on or nothing pressure to filer seems fine Check for proper flow at your pump and ...

...back on, i noticed a little red light blinking and clicking coming from the control module. well now it won't turn on at all. It would appear you have a Hayward H series dual-thermostat pool ...

...pump is on, jump the wires & turn on the unit. MAKE SURE to put them back on after testing as the water will boil very rapidly if the unit runs with no flow which is extremely dangerous. I would ...