VA N TA G E
®
H E
I N S TA L L AT I O N M A N U A L
R O B E R T S
-
G O R D O N
pg 36
Section 12. Troubleshooting
WARNING
Electrical Shock Hazard
Do not disconnect ground leads
inside heater.
Do not interchange grounded and
ungrounded leads on transformer or
ignition module.
Failure to follow these instructions
can result in death or electrical shock.
This heater is supplied with the Honeywell
®
SmartValve
®
II
control system. This system is equipped with a diagnostic
function that will assist in performing troubleshooting. The LED
(Light Emitting Diode) indicator at the top of the SmartValve
®
II
control will flash in various patterns to indicate status. The LED
status indication chart provided below gives a summary of
possible faults.
LED STATUS
INDICATES
Off
No power to the control.
Bright-Dim
Normal operation.
This indication shows whenever the
system is powered, unless some
abnormal event has occurred.
2 Flashes
Pressure switch remains closed
longer than 30 seconds after a call for
heat begins (pressure switch stuck closed).
3 Flashes
Pressure switch remains open
longer than 30 seconds after combustion
air blower is energized.
5 Flashes
Flame signal sensed out of
proper sequence.
6 Flashes
System Lockout.
Figure 34 on the next page will provide the information needed to test the manifold gas pressure setting. Figure 35 on
pages 38 and 39 will take you through several troubleshooting steps to determine possible problems with the systems.
WARNING
Disconnect gas and electrical supplies before
performing service or maintenance.
Failure to follow these instructions can result in
death, injury or property damage.