Error Messages - Rinnai REU-VRM1120WD-E Installation And User Manual

Rinnai water heaters have the ability to check their own operation continuously. If a fault occurs, an
error code will flash on the digital display (and on the Status Monitor) if you have temperature controllers
installed. This assists with diagnosing the fault, and may enable you to overcome a problem without a
service call. Please quote the code displayed when enquiring about service.
Code
Displayed
- Noticeable reduction in water flow
Power interruption during operation
03 (water will not flow when power
10 Not enough combustion air
11
12 Flame failure / Earth Leakage
14
High flame safety device
16
Over temperature warning
Outgoing water temperature sensor
32
33 Heat exchanger outlet sensor faulty
Combustion Air Temperature Sensor
34
52 Gas modulating valve faulty
61
Water flow control faulty
65
(does not stop flow properly)
71
72
LC (00)*** Scale build-up in heat exchanger
* In all cases, you may be able to clear the Error code by turning the hot water tap OFF, then ON again.
If this does not clear the error, try pushing the On/Off button OFF then ON again. If the Error Code still
remains contact Rinnai or your nearest service agent for advice.
** Faults caused by insufficient gas/water supply or gas/water quality and installation errors are not
covered by the manufacturer‟s warranty.
*** The display will alternate between temperature setting and LC code. The controller will continue to
beep. The LC code will reset if power is turned Off and then On.

ERROR MESSAGES

Fault
returned)
No Ignition / Gas supply
faulty
faulty
Combustion fan failure
Micro-processor failure
Flame rod circuit error
Remedy
Inlet water filter needs to be cleaned.
Turn off all hot water taps and circulating
pumps.
Press „On/Off‟ twice
Check for physical blockages around air intake
or exhaust. Check combustion fan.
Check gas valves, gas supply
and sparker unit.
Check gas valves and gas supply.
Check flame rod.
Check earth wire lead.
Check remote control.
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
Service Call
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