Rinnai E75CN Installation & Servicing Instructions Manual page 76

Code Description
internal shut down of supply
sensor T1
Shut down of return sensor T2
contact for supply sensor T1
open
contact for return sensor T2
open
76
Solution
Check the data in Error mode. Boiler data during error:
1 Error = 31
2 Operational status = 00
3 Flow temp. = 230
4 Return temp. = xx*
5 kW burner = 00**
6 % pomp = xx*
* = variable values
**= x3415=BTU/hr
Check the wiring. check the wiring for the sensor
The wiring is OK but the error is repeated. Remove the plug from the flow
sensor as a result of which Error 36 occurs
Replace the sensor.
Check the data in Error mode. Boiler data during error:
1 Error = 32
2 Operational status = 00
3 Flow temp. = xx*
4 Return temp. = 230
5 kW burner = 00**
6 % pomp = xx*
* = variable values
**= x3415=BTU/hr
Check the wiring. check the wiring for the sensor
The wiring is OK but the error is repeated. Remove the plug from the flow
sensor as a result of which Error 37 occurs
Replace the sensor.
Check the data in Error mode. Boiler data during error:
1 Error = 36
2 Operational status = 00
3 Flow temp. = -22
4 Return temp. = xx*
5 kW burner = 00**
6 % pomp = xx*
* = variable values
**= x3415=BTU/hr
Check the wiring. check the wiring for the sensor
The wiring is OK but the error is repeated. Remove the plug from the flow
sensor as a result of which Error 31 occurs
Replace the sensor.
Check the data in Error mode. Boiler data during error:
1 Error = 37
2 Operational status = 00
3 Flow temp. = xx*
4 Return temp. = -22
5 kW burner = 00**
6 % pomp = xx*
* = variable values
**= x3415=BTU/hr
Check the wiring. check the wiring for the sensor
The wiring is OK but the error is repeated. Remove the plug from the flow
sensor as a result of which Error 32 occurs
Replace the sensor.