Rinnai V3237FFU - Manual (Page 24)

24
Rinnai Corporation V3237 Models
TROUBLE SHOOTING AND COMMON QUESTIONS
Q - I don't have any hot water when I open the tap!
A - Make sure there is gas, water and electricity to the Rinnai Water Heater
(the power is turned on and the gas is turned on)
Q - When I was using the hot water, the water got cold!
A - If you adjusted the flow from the tap to lessen it, you may have gone below
the minimum flow required. The Rinnai Water Heater requires a minimum
flow rate to operate (see specification page for flow rate of your unit). If
you mix the water at the tap and attempt to get a temperature well below
the temperature being controlled by the unit, it may drop the flow below the
desired minimum flow rate. Decrease the temperature supplied by the Rinnai
Water Heater at the remote control or increase your total flow.
Q - White smoke comes out of the exhaust!
A - During colder weather when the exhaust temperature is hotter than the air,
the exhaust fumes condense producing white steam - this is normal.
Q - When I open a hot water tap. I do not immediately get hot water!
A - Hot water must travel through your plumbing from the Rinnai Water Heater to
the faucet. The time period for hot water to reach your fixture is determined
by the amount of water in your plumbing system between your water heater
and the fixture, water pressure, flow rate of fixture in use, etc.
Q - After I turn off the hot water tap, the fan on the Rinnai Water Heater
continues to run!
A - The fan is designed to be on for a few seconds after the flow of water stops.
This is to ensure constant water temperatures during rapid starting and
stopping, as well as exhausting any residual gas flue products from the unit.
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