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Tankless shutting down intermittently
Rinnai RU 98i
about 5 years old never a problem until now. While showering water temp goes from where you set to super hot then cold then correct. Screen is showing no codes. cleaned the inlet filter / blew air into turbine, spinning / took cover off and found mouse nest and chewed wires / cleaned nest / removed 2 harnesses and repaired (not sure if I can get new ones yet, its the weekend). Ive observed the unit while running the shower. The burner and "in use" light go off after about 2 minutes and 45 seconds then 5 to 10 seconds later the burner and "in use" light kick on and it goes for another 2 minutes and 45 seconds and so on....
I understand this could be completely related to the wiring i found and repaired or could be damaged wiring I havent found or could be related to urine or other "fluids" from the mice or maybe completely unrelated to the mice. Before taking apart I combed this site for a few hours, it seems there are some very helpful and knowledgeable people here. Any help would be appreciated!