Paloma PH2-20R OFN Engineering Handbook page 85

Unplug unit and remove Remote
Thermostat wires from wiring terminals
on bottom of unit. Plug unit in and open
a hot water source.
SVC 820-Tankless Gas Trouble Shooting Manual
76 – Error Code Diagnostic Chart
Did the unit go to
main burner?
YES
Unplug unit. Use a short piece of new thermostat
wire to connect the Remote Control directly to
Remote Control wiring terminals at bottom of unit.
Plug unit in and open a hot water source.
Did the unit go to
main burner?
YES
The wiring is defective. Replace Remote Control
wiring.
Attempt to operate unit again. If the unit
malfunctions due to an Error Code 76:
NO
Replace Remote Control
Replace Remote Control
NO
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