Rinnai M060C Installation And Operation Manual page 83

WARNING
When the boiler detects an error, a 3-digit blocking or fault code appears on the controller display.
•
A blocking code is a temporary error that can be automatically corrected by the boiler.
•
A fault code requires the error to be reset and/or corrected for the boiler to go back into a
normal operating mode. In the table below, fault codes are labeled with "Press the Reset
button" in the "How to Resolve" column.
An overview of the most common blocking and fault codes are listed below.
Code Description
•
101 Overheat
•
•
102 Pressure The pressure sensor has a short or open
Sensor circuit
Damaged
103 Flow Check Three flow checks failed within 15 minutes.
Failed 3 Times 1P1 (Flow Check 1 Failed) was the last error
detected.
104 Flow Check 2 More than 27°F per second change in supply
Failed or return water temperature
105 Flow Check Three flow checks failed within 15 minutes.
Failed 3 Times 1P3 (Flow Check 4 Failed) was the last error
detected.
106 Flow Check Three flow checks failed within 15 minutes.
Failed 3 Times 1P4 (Filling Needed) was the last error
detected.
107 Flow Check 5 The return water temperature is more than
Failed 63°F higher than the supply water
temperature and the burner is on.
•
108 Supply
Pressure is
•
below
Minimum
Pressure
109 Supply The supply pressure is above the maximum
Pressure is pressure.
above
Maximum
Pressure
110 Send Probe The supply sensor has a short or open circuit. CH
Damaged
112 Return Probe The return sensor has a short or open circuit. CH
Damaged
114 Outdoor The outdoor sensor is installed and has a
Probe short or open circuit.
Damaged
Rinnai M-Series Condensing Boiler Combi Manual
Some of the checks below should be performed by a licensed professional.
Consumers should never attempt any action that they are not qualified to
perform.
Reason(s)
The supply or return water temperature
is greater than 212°F for 3 seconds.
The return water temperature is within
9°F of the supply temperature is not
achieved within 2 minutes with pump
running on call for heat.
The supply and return probe check failed
The supply pressure is below minimum
pressure and the burner is on.
The burner is off with the supply pressure
below the minimum pressure and air
purge is active for 40 seconds.
Where Error
How to Resolve
is Occurring
CH Press the Reset
Operation button
CH Troubleshoot
Operation the pressure
sensor
CH Press the Reset
Operation button
CH Press the Reset
Operation button
CH Press the Reset
Operation button
CH Press the Reset
Operation button
CH Press the Reset
Operation button
CH Raise the supply
Operation pressure above
the minimum
pressure
CH Lower the
Operation pressure to 4.3
PSI below the
maximum supply
pressure. Verify
proper operation
of the PRV.
Troubleshoot
Operation the supply
sensor
Troubleshoot
Operation the return
sensor
CH Troubleshoot
Operation the outdoor
sensor
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