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40
MAXIM OUTDOOR WOOD PELLET FURNACE • OWNER'S MANUAL
TROUBLESHOOTING
A. FURNACE DOES NOT HEAT (BUILDING IS LOSING TEMPERATURE)
1.
Out of fuel - Check firebox to see if fire is out. Add fuel as necessary.
2.
Fire out - If the controller is flashing
Maxim Operating Instructions.
3.
Thermal valve opened - If during a power outage, a high temperature situation
is detected in the burner auger area, the thermal valve will open to release a small
amount of water into the burner auger area to cool the area. To determine if
this has happened, first look in the firebox for the presence of water. Also check
the glass inspection port just above the burner auger. If the fuel appears to have
expanded from absorbing water, the thermal valve has opened. Contact your
Central Boiler dealer for assistance.
4.
Circulation valve(s) closed - Be sure all valves in the system are open.
5.
Circuit breaker off - Reset the circuit breaker that supplies power to the outdoor
furnace.
6.
Circulation pump(s) not operating - 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.
7.
Air in system - Check for air in the supply and return 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 Section 7.
8.
Outdoor furnace exhaust obstructed - Check outdoor furnace exhaust for
obstructions by removing the chimney transition cover to expose the heat
exchanger. The heat exchanger can also be observed from the front of the furnace
through the front door opening.
9.
Combustion fan blocked or obstructed - Check the combustion fan for
obstructions.
10. Building(s) poorly insulated or uninsulated - Poorly insulated or uninsulated
buildings and/or buildings with uninsulated or poorly insulated ceilings can cause
excessive fuel consumption and or heating problems.
11. 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.
12. Circulation pump(s) installed incorrectly - Circulation pump(s) must be
installed in the supply line(s) with the arrow on each pump pointed away from
the outdoor furnace. Remove the pump and install correctly. Refer to the System
Installation section for installation guidelines.
13. 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
10ºF (-12˚C) or colder.
14. Supply and return lines uninsulated - Uninsulated supply and return lines in
areas that are not intended to be heated (unheated crawl spaces, under mobile
homes, etc.) may cause excessive heat loss. Insulate the supply and return lines.
15. Low water - If the controller is flashing
condition. Check water level and if necessary add water according to the Water
Quality and Maintenance section. If adding water does not correct the problem,
contact your Central Boiler dealer.
refer to FireStar Controller for
the system senses a low water
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