Why my Bosch Aquastar 2700ES doesn't light the burner (no sparks)
My Bosch tankless water heater, Aquastar 2700ES model doesn't light the burner. Looking through the small window on the water heater I have noticed that my Aquastar water heater is not using the pilot light but the electrode which doesn't produce any sparks.
I have checked the water pressure, gas pressure and everything is OK. I live in Florida and water supply will fluctuate but this is the first time I am experiencing this problem.