Rheem

78 Rheem Water Heater Rheem tankless Error 78 means the combustion blower motor RPM is wrong — either … 29 Rheem Water Heater Rheem condensing tankless Error 29 is a maintenance reminder, not a fault — it … 10 Rheem Water Heater Error 10 is a vent air pressure problem.<br>The vent fan inside the unit isn't … 5 Rheem Water Heater Error 5 on a Rheem tankless heater is an air supply problem.<br>The unit can't … 9 Rheem Water Heater Error 9 indicates an igniter problem — either the igniter itself isn't firing, … 13 Rheem Water Heater Code 13 means combustion gases are not being properly exhausted.<br>This is a … 4 Rheem Water Heater Code 4 means the thermopile is generating too little voltage to keep the gas … 16 Rheem Water Heater Rheem tankless Error 16 fires when the hot water outlet thermistor reads above … 11 Rheem Water Heater Error 11 means the burner did not ignite within the allowed attempts.<br>The … 12 Rheem Water Heater Error 12 means the burner lit but the flame went out unexpectedly during … 14 Rheem Water Heater Rheem tankless Error 14 means the overheat film wrap thermostat (sometimes …