Error Messages - Rinnai REU - 16 FUA - 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 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. Some of these remedies can not be checked by the user because they require
the front to be taken off of the unit.
information to the gas engineer.
Code
Displayed
- Noticeable reduction in water
10 Not enough combustion air
11 No Ignition / Gas supply
Flame failure / Earth Leakage
12
High flame safety device
14
Over temperature warning
16
Outgoing water temperature
32
Combustion Air temperature
34
Gas modulating valve faulty
52
61 Combustion fan failure
Micro-processor failure or Sole-
71
72
* 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.
Regular maintenance should be performed by a competent person in accordance
with the local regulations at least once annually.

ERROR MESSAGES

They are included so that you can give the
Fault
flow
sensor faulty
sensor faulty
noid circuit failure
Flame rod circuit error
Remedy
Inlet water filter needs to be cleaned.
Check for physical blockages around
air intake or exhaust. Check combus-
tion fan.
Check gas valves, gas supply and
ignition unit.
Check gas valves and gas supply.
Check flame rod.
Check earth wire lead.
Check remote control.
Check overheat circuit
Modulating control valve problem or
water flow control valve problem
Check Hot Water Thermistor and wire
Check Air Intake Thermistor and wire
Check gas modulating valve and pcb.
Check Combustion Fan
Check solenoids and pcb.
Check flame rod and pcb.
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