Error Code - Paloma PH2-20R OFN Engineering Handbook

50 | Page
14 – Error Code
Explanation:
Mid & High Efficiency: Over Heat Limiter (OHL)
malfunction.
High Efficiency ONLY:
Over heat condition in the venting has triggered the Over
Temp Limit Switch
1
Turn power OFF. Remove and reinsert white
connector "U" on Control Board (white Molex with 2
white wires). Attempt to operate unit again.
Over Temp Switch
50
SVC 820 Tankless Gas Trouble Shooting Manual
OHL DIAGNOSTICS:
3
Diagnostic Checks:
•
Mid & High Efficiency:
OHL
•
High Efficiency ONLY:
Over Temp Limit Switch
Mid Efficiency ONLY:
IF 14 Error Code does NOT display, unit had a loose
connection. IF 14 Error Code IS displayed, continue to
diagnostic chart on next page.
High Efficiency ONLY:
IF 14 Error Code does NOT display, unit had
a loose connection.
IF 14 Error Code IS displayed, locate the over
temp switch and continue to diagnostic
chart on next page.
2
OHL