check the wire going to the level sensor.. when a yellow light is turned on, the yellow led lights up. if there are no yellow lights lighting up, either you are in a level spot, the wire is broken, or the level sensor is bad.
if that sensor is a round one, it is no longer available. a new style level sensor is available to retro fit to your system. send me your email and i will provide the part number and directions for the retro fit.
paul maddox ie azpete
if you need further help, please feel free to contact me at [email protected]
i do work for hwh corp full time as a sales and service rep.
i do not sell parts or solicit service on this forum.