Question about Rinnai MC-91-1US-S-RK Integrated Controller Relocation Kit for Tankle
The Rinnai MC-91-1US-S-RK does not fit the REU-KB3237FFUD-US (RU98i type) water heater. Does anyone know the correct relocation kit for the REU-KB3237FFUD-US (RU98i type) water heater?
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Posted on Jan 02, 2017
did you turn the unit off before hooking it up ? Any function on a tankless rennai the pwer has to be turned off and the priority button has to be pushed in,, if you have the manuel it tells you haw to do this,,
Posted on Jun 06, 2009
Tankless water heaters for domestic use fire whenever there is water flow. As long as the pump flow rate exceeds the minimum flow rate of the appliance, the heaters hould fire (the return temperature needs to be less than the set temperature as well). Boiler systems will typically require a thermostatic signal (call for heat) and water flow before they will fire. Tankless heaters are designed for residential use and only require pump flow to fire.
Posted on Aug 18, 2009
SOURCE: Ignition problem: I have a gas
This is an error code 12, not 12 degrees. You have a short on your low voltage side by the sounds of it.. First disconnect the controllers inside the heater. Turn of the power first, 2 screws top and bottom to take the frnot panel off. Follow the low voltage wires (not the power point ones) to the PCB on the ride side and disconnect them both. Panel back on, power on and try the heater again. If this fixes it you have a short circuit in the controller or the wires leading to it. If not the most likely short circuit is on the thermal fuse which loops around the heat exchanger. This will need an expert, Perth has plenty north and south of the river. Give Rinnai a ring first, they have some good staff in Perth who might help.
Posted on Dec 14, 2010
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