I have a Sta-Rite Max-E-Therm 400 heater for my Pool&Sps. When I turn it on, it works good. Once it reach the set temperature, it will stop as it is supposed to. When the temperature drops below the set temperature, it will start again, however, sometimes, the heater will not start and giver “E05” error in the screen. Is this a problem with the stack flue sensor and need replacement.
Thank you in advance for your advise. Appreciate it.
Thank you in advance for your advise. Appreciate it.