FULTON EDR-1000 Installation And Operation Manual page 58

MAINTENANCE
PROBLEM
Control does not illuminate 24 VAC Power Supply
Fan will not start
Interrupted Air Switch Not
Made
High Back Pressure Switch
trip/boiler shutdown
Main fl ame failure during
fi ring period
Igni on Failure
4-6
CAUSE
High temperature is tripped
Low gas is tripped
High gas is tripped
Flame detector has detected light/scanner
Air switch is made when fan is not on
Blower contactor made when fan not on
Gas valve proof of closure defective
Loose wire connection
Interrupted Air Switch is annunciated if the airfl ow
switch detects low airfl ow during purge.
Excessive Vent Pressure
Main gas control valve is de-energized and the con-
trol goes into "lockout" mode. Flame failure occurs
and the indicator is illuminated.
If UV scanner does not detect the fl ame during the
4-second trial-for-igni on period, the gas valve and
spark igni on are de-energized. At this me a safety
lockout occurs.
EDR-IOM-2014-0318
CHECK
Check fuse or circuit breaker. Reset or replace as
necessary.
1. Check sensor wiring connector.
2. Check resistance.
3. Replace sensor if faulty.
1. Reset switch, making sure to listen for audible
click.
2. Replace switch if setting is below actual pressure.
1. Reset switch, makiing sure to listen for audible
click.
2. Replace switch if setting is above actual pressure.
1. Identify light source, remove
2. Replace fl ame detector
1. Adjust, if necessary.
2. Reset switch
3. Replace switch
Replace motor contactor
Replace valve
Check wiring
The air switch has been factory set and should not
be adjusted in the fi eld.
An extended low air indica on does not mean that
the low air switch is defec ve.
1. Check that current se ng matches factory set-
ng.
2. Check that the burner is clean. Check the blower
purge speed and low fi re speed is correctly dis-
played on the touch screen.
3. Check for obstruc ons in the air inlet path.
This condi on will automa cally recycle, so the
boiler will try to relight. The ven ng exchanger
should be checked for obstruc ons and cleaned.
Check switch se ng.
The programmer must be manually reset. Check
wire connec ons.
Iden fy and correct.
SECTION 4
© The Fulton Companies 2014