Install Instructions

Installation & Servicing Instructions Rinnai E-Series
70
Code Description Solution
contact for return sensor T2
open
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 fl ow
sensor as a result of which Error 32 occurs
Replace the sensor.
Control unit error Software error control unit. Replace the control unit. Remove the E-Prom
from the defective control unit and place it onto the new control unit .The
controller will automatically load the program into the new control unit.
Control unit error Software error control unit. Replace the control unit. Remove the E-Prom
from the defective control unit and place it onto the new control unit .The
controller will automatically load the program into the new control unit.
Electrical leakage to ground. Moisture on controller PCB. Check if there is water leaking on or in the
boiler.
Stop water leak and replace controller.
No software present Remove the E-Prom from the defective control unit and place it onto the
new control unit .The controller will automatically load the program into the
new control unit.
Flue gas temperature to high
(adjustment parameter 84 -
default 212°F)
Replace fl ue sensor or adjust parameter 84 to default
Fuse on controller PCB
defective
or
Cable transformer not
connected
Replace fuse.
A 4A and 5A spare fuse can be found on the back side of the Control
Tower.