Premier Ductable Heater
Owner’s Manual • Premier Ductable Heater
29
Premier Ductable
Heater
Owner’s Manual •
Premier 700DF
29
3-Flash Code
Is ignition control
sending out 24 volts
from terminal MV
?
Is gas control
valve
rec
eiving
24 volts?
Is gas control valve open?
Defective wire or
terminal
connection. Repa
ir
or replace as
needed.
Is high limit at fan end
receiving 24 volts from
ignition
control?
Is high limit at fan end delivering 24 volts to high limit at burner
end?
Is high limit at burner
end
rec
eiving
2
4
volts?
Is high limit at burner end delivering 24 volts
to gas control?
If high limit switch is tripped, firmly
depress the sw
itc
h reset button. Check
continuity. Determine cause of high limit opening. Check for proper gas pressure,
blockages at air inlet or w
arm
air
discharge,
kinks
in
ducting.
Defective
ignition
control.
Replace
control.
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Defective wire or
terminal
connection.
Repair or replace as
needed.
Defective wire or
terminal
connection.
Repair or replace as
needed.
If high limit switch is tripped,
reset the switch. Check
continuity.
D
etermine
cause
of
high
limit
o
pening.
C
heck
for
pr
oper
g
as
pre
ssure
blockages
at air inlet or warm air
discharge, kinks i
n d
ucting.
Yes
Replace gas control valve.
Indicates ignition failure. The ignition control is in safety lockout.
Does igniter spark?
No
Yes
Is igniter high voltage lead
securely connected
No
Is igniter properly gapped?
No
Yes
Connect
high v
oltage
lead
Check igniter gap.
Regap to 1/8 in. (3 mm)
De
te
rm
ine i
f ig
nit
or r
ec
eiv
es h
igh v
olt
ag
e:
-
CLOSE THE HEATER’S FUEL SUPPLY VALVE
- Disconnect ignition lead from ignition control. -
Position a screwdriver tip about 3/16 in.
(4.7 mm
) away from ignition control where lead was connected.
- Start the heater - If no spark is seen, replace the ignition control. -If spark is observed, check the igniter for cracks, etc. -Check ignition cable for continuity.
Ye
s
Clean the burner orifice hole
4-Flash C
ode
If control module does not reset, then replace it (Internal boa
rd fault). If module resets, then have qualified electrician c
heck power source for power quality problems. (Frequency, line
noise, line spikes, loose
connections, too small wire gauge.
5-Flash C
ode
Flame sense related problems. Check for cracked or dirty ignite
r, improperly positioned sensor, or poor flame igniter
ground.
