Rinnai E- Series User Manual

21 008082013GW
Control unit error - Connector not plugged into the gas valve
or defect in the wiring harness to the gas valve.
Check for 24 volts DC at gas valve.
Check across terminals 4 and 5 at plug X5 on the main
control board. See wiring diagram for your boiler for
terminal locations
In some cases an E03 is caused from a loose
connection on wires to the gas valve. This
faulty connection may be in the Molex plug
(X5) on the MCBA. Examine plug closely for
bayonets that may have backed out of plastic
casing.
WARNING: Turn off power and water supply to the boiler before removing or installing any parts. If checking
gas pressures you MUST be qualified gas technician to service the gas system on this appliance.

Rinnai E- Series Specifications

General

Fuel Type	Natural Gas or Propane
Installation	Wall-mounted
Type	Condensing
Venting	Direct Vent
Dimensions	Varies by model
Weight	Varies by model
Warranty	12 years heat exchanger, 5 years parts
Heating Capacity	15, 000 - 199, 000 BTU/h
Vent Type	Direct Vent