Owner`s manual

SP-MECM-BX-05A
ecoSchwank - Millivolt Manual
RD: MAY, 2004
RL: 5
KH
8. TROUBLE SHOOTING GUIDE
SYMPTOMS POSSIBLE CAUSES OR CORRECTION
1. Pilot will not light a. Make sure the gas supply is turned on.
b. Air in line. Continue to relight until air is released.
c. Check for a blocked pilot orifice.
2. Pilot outage a. Improper pilot flame adjustment. Refer to Figure 7.
b. Check pilot generator contacts and tighten if necessary.
c. Defective pilot generator—replace.
d. Defective valve—replace
3. Pilot flame will not stay lit when valve a. Improper pilot flame adjustment. Refer to figure 7.
knob is released b. Remove pilot orifice—check and clean—reinstall.
c. Defective thermostat—replace.
d. Defective valve—replace.
4. Burner goes out. a. Thermostat satisfied—normal operation.
b. Defective valve—replace.
5. Main burner and pilot goes out. a. Improper venting or blocked flue. Correct venting
problem and relight.
b. Strong Wind conditions.—restart heater.
c. Make sure the gas supply is turned on.
6. Burner backflashes or makes noise. a. Check burner and orifice for damage. Replace if necessary.
b. Check for cracked tile. Replace if necessary.
7. Yellow main burner flame. a. Check and clean burner and orifice.
b. Check line and manifold gas pressure.
8. Yellow pilot flame. a. Small yellow tip—normal operation.
b. Remove pilot orifice – check and clean—replace.
9. Poor thermostatic control. a. Check for proper setting.
b. Check wall thermostat section or gas valve assembly.
c. Replace thermostat section or gas valve assembly.
d. Check wall thermostat location.
10. Main burner will not light a. Check thermostat setting.
b. Check to see if valve is in the ON position.
8.1 MAINTENANCE
The efficiency of the heater can be impaired if it gets
dirty. If the heaters are installed in areas where con-
siderable dust is present in the air, periodic burner
cleaning may be necessary. Dust may be entrained
in the primary air supply and deposited on the back
side of the ceramic. This can be very easily removed
by dusting the ceramic face and the air inlet with a
blast of low pressure air, a maximum of 20 psi.
Occasionally pilots or the main burner refuse to func-
tion properly after a summer shutdown. For the pilot,
this problem can be corrected by removing the pilot
burner and cleaning out the gas passageways. The
main burner passageways can be cleaned out by us-
ing a flexible brush comparable to the type used to
clean glass bottles. (In several instances, small co-
coons or spider webs have been found present in
these areas.) Preventative maintenance is the best
policy
. Heaters should be cleaned once a heating
season.
FIG. 7
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