Nordyne CMF 100-PG, Руководство пользователя и инструкции по установке

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a. Normal ohm reading should be be-
tween 40 to 75 ohms.
b. An infinite or zero ohm reading indi-
cates a defective ignitor and it must
be replaced.
3. Check for continuity from ignitor re-
ceptacle to burner ground.
4. Check for hairline cracks in ignitor’s
insulating ceramic.
! WARNING:
When replacing the ignition control, re-
placement control MUST have the safety
lockout time. FAILURE TO FOLLOW
THIS WARNING MAY RESULT IN AN EX-
PLOSION.
E. Main flame ignites but burner locks out.
1. Ignition control is not properly
grounded.
2. Defective ignition control.
3. Improper gas pressure or burner air
adjustment is not allowing flame to
contact ignitor tip for flame proving
rectification.
F. 24 volts supplied to gas valve during igni-
tion but no main gas flow.
1. Gas valve may be defective. Replace
if necessary.
2. Gas piping may be plugged. Check for
adequate gas supply to gas valve at
union.
G. Burner operates, insufficient heat
1. Check the thermostat for proper set-
ting and location. The thermostat
should not be located where it will be
affected by another heat source.
(Lamps, ovens, sunlight, etc.)
2. Check for clean air filters and proper
air flow.
3. Check burner for proper gas firing
rate.
4. Be sure unit is not undersized for its
thermal load.
5. Check thermostat anticipator. (0.9
amps)
H. Burner does not shut off. (Note: Burner
will stop when the door switch is open. With
the door open, secure the door switch in
the closed position by depressing the
switch. The means for securing the door
switch must be removed once this testing
has been completed.
1. Disconnect the thermostat wires from
TT connections on the burner junction
box. If the burner shuts off, check for:
a. Short circuit in the thermostat wires.
b. Defective thermostat.
I. Burner flame without motor running — gas
valve is stuck in open position — Replace
the control, burner and heat exchanger
may need cleaning.
J. Noisy fire — Readjust combustion air to
reduce volume of air being drawn into the
burner. (Caution — See “Adjusting the
Burner” or “Flame Adjustment” sections)
K. High Gas Bills
1. Check the combustion air adjustment.
2. Be sure the proper size orifice is being
used.
3. Be sure the return air filter is clean.
4. Be sure the home is insulated, win-
dows and doors fit tightly, and there
are no air leaks in the heating ducts.
5. Check room thermostat to be sure the
setting is not higher than necessary.
Low humidity requires higher tempera-
tures for comfort. Perhaps humidity
should be increased.
L. Circulation blower will not operate even
though the burner operates.
1. Turn on the manual blower switch, if
the blower operates, check the fan
switch.
2. Check the wiring to the motor.
3. Check for a burned out motor.