Rinnai E110CN Installation & Servicing Instructions Manual page 84

15.2.18
84
Error 37
check the data
in Error mode
1 error
2 operational
status
3 supply temp.
4 return temp.
5 kW burner
6 % pump
check the wiring
the wiring is OK
but the error is
repeated
replace the
contact for return sensor T2 open
boiler data during error
1 = 37
2 = 00
3 = xx*
4 = -22
5 = 00
6 = xx*
*= variable value
check the wiring for the sensor to make sure
it is not broken
connect the wiring from the return sensor with
one another as a result of which Error 32
occurs
sensor