Rheem IKONIC RTGH-S11i Training And Service Manual page 44

IKONIC Tankless Water Heater Service Manual
ERROR CODE DIAGNOSTICS
2.2 ERROR CODE LIST
A014 ERROR CODE
Over Heat Limiter (OHL) activated.
This tankless water heater has an Over Heat Limiter
(OHL) and an Over Heat Limit Fuse (OHLF).
If the OHL or OHLF has been activated, the water heat-
er displays the " A014 " error code on the User Inter-
face. This is normally cause by inadequate/wrong GAS
SUPPLY and/or VENTING.
the OHL and OHLF, and then turn power ON.
Turn Power OFF
Remove & reinsert connector "I", and turn
power ON.
Does A014-Error
code appear?
Yes
Turn Power OFF.
Remove & reinsert blue molex connector for
Does A014-Error
code appear?
Yes
Disconnect Molex.
Check resistance on connector for the OHL
and OHLF.
The resistance is
5K-500K Ohms?
Yes
Replace the control board.
44
Diagnostic Check
• Over Heat Limiter (OHL)
• Over Heat Limit fuse (OHLF)
Unit has a loose connection.
No
OHL and OHLF appear to be OK.
No
Unit has a loose connection.
OHL and OHLF appear to be OK.
No
Replace the unit.