Fault Finding - Rinnai REU-VR3237WG Service Manual

14. Fault Finding

If there is a fault with the appliance, and controllers are installed, a numerical fault code may appear on the
digital display controller. If controllers are not installed, one may be fitted to find out the fault code. Fault
finding without controllers (and thus fault codes) is possible but more time consuming.
To diagnose and rectify faults, the Fault Finding Table is used as illustrated below:
Fault Finding Table
Describes possible faults
and error codes.
(page 18)
Operational
Flow Chart
(page 9)
Infinity REU-VR3237WG / HD250e REU-VRM3237WC
Summarises running and standby electrical values
Wiring Diagram
(page 14) Monitor / Error History
combustion time, history of
Diagnostic Points Table
for all components.
(page 15)
Maintenance
Provides accumulated
number of startups,
operational faults and
readout of electrical values
whilst unit operational.
(page 20)
- 17 -
Component and
Circuit Check
Procedures
Detailed information on
how to check all
components.
(page 26)
Dismantling for
Service
Detailed information on
how to remove and
replace components.
(page 23)
Issue 1 - 19/05/09 ©Rinnai