Upon my arrival I spoke with the customer about their concerns with the comfort control being blank. Performing my diagnostics I found that the water removal system has become restricted causing the auxiliary float safety switches to trip as well as leaked into the emergency drain pan under the fresh air control. I spoke with the customer about my concerns and presented repair options to be performed while on site. Customer approved to have the water removal system cleared, treated and the emergency drain pan drained. I performed the approved repairs by clearing the water removal system, installing another ball valve to allow sections of the 2 drain lines, treated the system then tested the system. I found everything properly at this time. I will be getting a quote put together Monday morning on renovations of the drain line to allow for new pvc to be installed that is clear of all zooglea.