Rinnai E75CN - Manual (Page 87)

Installation & Servicing Instructions Rinnai E-Series
87
hot water but no
central heating
-Key of the central
heating program is not
switched on
room thermostat (on/
off) is not giving any
signal to the boiler
RS100 with outdoor
sensor
(Room sensor-On)
16.2 Hot water but no central heating
three-port valve
is not circulating
to central heating
position
Check timer program and set room
temperature
check room thermostat
outdoor temperature is higher than 70°F,
depending upon the Eco-temperature set
(70°F is the default). Check Info chapter
Step 7 or temperature is higher than the
Eco temperature set (see RS100 installation
instructions).
check wiring, replace the three-port valve
motor
switch on central heating program