Air King KW(N207,P208)-20,000 Thermostat User Manual


 
Page 16
TROUBLESHOOTING:
PROBLEM POSSIBLE CAUSE WHAT TO DO
When control knob
is pressed in and
turned counterclockwise
to ignition, there is no
spark at ODS pilot.
When control knob
is pressed in and
turned counterclock-
wise to ignition/pilot
position, there is spark
but no ignition.
ODS pilot lights but
flame goes out when
control knob is
released.
Burner does not light
after ODS pilot is lit
Delayed ignition
1. Ignitor electrode posi-
tioned wrong.
2. Ignitor electrode broken.
3. Ignitor cable pinched or
broken.
4. Ignitor cable not connected
to ignitor electrode.
1. Gas supply turned off.
2. Control knob not in pilot
position.
3. Control knob not pressed
in while in pilot position.
4. ODS pilot is clogged.
5. Air in gas Lines.
1. Control knob not pressed
long enough.
2. Safety interlock is triggered.
3. Pilot flame not touching
the thermocouple. Problem
could be result of one or
both of the following:
󳀏Partially clogged ODS pilot
orifice.
󳀏Low gas pressure.
4. Thermocouple damaged.
5. Thermocouple connection
loose at gas control valve.
6. Gas control valve damaged.
1. Burner orifice clogged.
2. Gas supply pressure is very
low.
1. Main burner carry over ports
clogged.
2. Gas supply pressure is very
low.
1. Replace Ignitor
electrode.
2. Replace electrode.
3. Free ignitor cable, if
damaged replace it.
4. Connect cable to
electrode.
1. Turn on gas supply.
2. Turn control knob to
pilot position.
3. Press in control while
in pilot position.
4. Call a qualified person
5. Purge gas lines and
repeat ignition
operation.
1. After ODS pilot lights,
keep control knob
pressed in approx. 30
sec.
2. Wait a minute, repeat
ignition operation.
3. Contact your gas
company or gas
supplier or qualified
service person.
4. Replace thermocouple.
5. Hand tight until snug
then tighten 1/4 turn
with a wrench.
6. Replace gas control.
1. Clean burner orifice.
2. Contact the Gas Co.
1. Clean main burner ports.
2. Call your gas supplier.