Rheem Gas Heavy Duty Water Heater Models 265 Litre and 275 Litre - Manual (Page 40)

LIGHTING THE WATER HEATER
40
DIAGNOSTIC FEATURES OF HOT SURFACE IGNITION CONTROL
Warning:
The removal of the access covers will expose 240 V wiring. They
must only be removed by an authorised or service person only.
The water heater incorporates an electronic control module. This is located
inside the access cover of an indoor model and to the right of the access cover
inside the air duct on an outdoor model (refer to
installation diagrams on
pages 22 and 23).
An LED light on the module will flash once when power is switched on to the
water heater. In the event of a fault occurring in or affecting the Hot Surface
Ignition system, the system will enter “lock out” and the LED will emit a series
of flashes diagnosing the fault. There will be a 2 second interval between each
group of flashes.
Flashes Fault
1 Re-ignition attempt lockout.
2 631 275 models only – Pressure switch not open.
3 631 275 models only – Pressure switch not closed.
4 Faulty igniter/igniter sensing circuit.
5 Flame sensed with gas valve de-energized.
6 Active and neutral wiring reversed.
7 Check flame sensor and/or appliance grounding.
Rapid Frequency check failure.
Remains
on
Press the reset button.*
* Note:
If the LED light remains on after pressing the
reset button, the electronic control must be replaced.
Phone your nearest Rheem Service Department or
Accredited Service Agent.
TEST THE WATER HEATER AFTER INSTALLATION
• The operation of the water heater must be thoroughly checked by the
installer.
• The burner flame must light smoothly and quickly from the hot surface
igniter and must go out quietly and completely.
• The burner flame must be stable, although slight lifting at the front edge of
the burner is acceptable when the burner is cold.
reset button
LED
indicator light