Troubleshooting - Central Boiler CLASSIC CL 4030 TITANIUM Owner's Manual

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CLASSIC OUTDOOR FURNACE • OWNER'S MANUAL

TROUBLESHOOTING

A. OUTDOOR FURNACE DOES NOT HEAT (BUILDING IS LOSING TEMPERATURE)
1. Out of wood - Check firebox to see if fire is out. Add wood as necessary. Use
good quality wood since poor quality wood will have very short burn times.
2. Circulation valve(s) closed - Be sure all valves in the system are open.
3. Circuit breaker off - Check the circuit breaker that supplies power to the outdoor
furnace.
4. Solenoid not operating properly - Disconnect power to the furnace; then check
the fuse in the control panel. If fuse is blown, check damper door for obstructions
and for free movement. Be sure damper door works freely; then replace the
fuse. Refer to Replacing/Adjusting Solenoid to check solenoid gap and adjust if
necessary. Be sure that the damper door (when activated by the solenoid) does
not contact the louvered cover. Lubricate or adjust as necessary. Check that the
spring-loaded linkage and damper door are not binding and that the spring is not
broken or missing.
5. Circulation pump(s) not operating - Check that circulation pumps are
operating. If not, disconnect power to the pump. Close valves at the pump.
Disassemble the pump and try to turn the pump shaft. If the shaft is stuck,
replace the pump cartridge. Replace only the cartridge whenever possible. If
necessary, replace the pump. Follow instructions supplied with the pump.
6. Air in system - Check for air in the water lines or heat exchangers. If you hear
a gurgling sound in a heat exchanger, air is present in the system. Shut off the
pump, wait 15 seconds and start the pump. If it is necessary to force air from
lines, refer to Start-up Procedures.
7. Outdoor furnace exhaust obstructed - Check furnace exhaust for obstructions by
observing the amount of smoke coming out of the chimney with the firebox door
slightly ajar. If smoke seems very restricted, remove the firewood and hot coals;
then check the chimney (top and bottom) and behind the baffle for obstructions.
On 4030 models only, check that the chimney restrictor is not plugged with
creosote and that it is positioned 11" in from the end of the chimney tee.
8. Building(s) poorly insulated or uninsulated - Poorly insulated or uninsulated
buildings, buildings with uninsulated or poorly insulated ceilings, or a lack of
proper insulation under radiant flooring can cause excessive fuel consumption
and/or heating problems.
9. Supply and return lines installed incorrectly - Make sure the hot supply water
line is connected to the correct fitting on the outdoor furnace and heat exchanger.
10. Circulation pump(s) installed backwards - Check that pump flow direction is
correct. If not, shut off power to pump. If the flow is not in the correct direction,
disconnect pump from water line and reverse pump mounting to correct flow
direction. If the pump is not mounted on the outdoor furnace, check for proper
pump mounting location.
11. Underground supply and return lines insulated poorly - Heat loss from poorly
insulated underground supply and return lines is often indicated by an unusually
high amount of snow melting above the lines when the ground temperature is
10˚F or colder.
12. Supply and return lines uninsulated - Uninsulated supply and return lines in
areas that are not intended to be heated (unheated crawl spaces, etc.) may cause
excessive heat loss. Insulate the supply and return lines.