Use and Care Manual

INSTALLATION INSTRUCTIONS

Maintenance Notice (cont.)

Replace the front cover panel.

Turn on the remote control.

Turn on the gas and water to the water heater by

opening the shut off valves.

Start/Adjust

Error Code 88 Clearing

When a tankless water heater has a certain number of

hours of combustion, error code “88” is shown on the

remote control. It is highly recommended to perform

water heater maintenance activities such as flushing the

heat exchanger and/or replacing the water treatment

filter (if applicable). After these maintenance activities are

made, follow the steps below in order to clear error code

“88”.

Turn on the remote control.

Turn off the gas and water to the water heater by closing

the shut-off valves.

Press the DOWN adjustment button repeatedly until the

lowest setting temperature shows in the LED display.

Press and hold the DOWN and UP adjustment button

for 5 to 10 seconds.

Turn on the gas and water to the water heater by

opening the shut off valves.

If error code "88" is still shown, repeat steps 1 through 5

above.