Explanation: Remote control buttons were
depressed for more than 20 seconds, release buttons
and operate unit. IF error code 24 appears again,
continue to remote control diagnostics.
Visually inspect remote
control wiring for damaged
or loose connections.
Is wiring OK?
YES
Tighten loose
Connections or replace
damaged wiring.
NO
Turn Power OFF & unplug
unit from power source.
Remove wires from wiring
terminals on remote control
and bottom of unit. Use a
new short piece of wire to
connect remote control
directly to wiring terminals at
bottom of unit.
Plug unit in, turn power ON
and open a hot water source.
Does 24 – Error Code
appear?
YES
Replace remote control.
Replace remote control
wiring
NO