Troubleshooting - Heatmaster MF Series Operation And Maintenance Manual

draft inducer if used, is especially important at the end
of the heating season to minimize corrosion during the
summer months caused by accumulated ash.
Creosote and Fly Ash Formation and Need
for Removal.
ATTENTION: Have a clearly understood plan to handle a
When wood or coal is burned slowly, it produces tar
and other organic vapors, which combine with expelled
moisture to form creosote. The creosote vapors condense
The chimney and chimney connector should be inspected
at least twice monthly during the heating season to
If the furnace is running but fails to bring water up to
temperature:
Check fan for operation.
Check that the damper and
Check to ensure the furnace is sized accurately
according to heat demand.
Check fuel type. Poor quality fuel will not provide as
many BTU's as high quality fuel.
Check water level of furnace.
7. Check for ash and creosote blockage at chimney and
bypass trough.
8. Check temperature settings. Make sure high
temperature setting is set to at least 165 F.
9. Check for power at furnace.
10. Check to ensure all pumps in the system are running.
11. Check to make sure there are no leaks, hot/wet spots
may cause the pipe to be saturated and lose its
insulation value.

TROUBLESHOOTING

box elbow is
determine if a creosote buildup has occurred. If creosote
has accumulated it should be removed to reduce the risk
Disposal of Ashes – Ashes should be placed in a metal
ground well away from all combustible materials before
or otherwise locally dispersed, they should be retained
in the closed container until all cinders have thoroughly
cooled.
CAUTION: Make certain that all electrical power to the
furnace and components is shut off. It can be washed
using water and a mild non abrasive cleaner suitable for
painted surfaces.
ATTENTION: Avoid direct water pressure to electrical
components and connections.
12. Check Temperature of water exiting furnace, entering
the building being heated and before and after each
heat exchanger.
If the furnace water is hot but buildings do not have
heat:
1. Check to ensure all pumps in the system are running.
3. Check for air in the system at the exchanger by
bleeding off.
5. Check Temperature of water exiting furnace, entering
the building being heated and before and after each
heat exchanger.
If the furnace overheats:
Check that all doors are closing properly and that door
gasket is completely sealing.
Check that the damper plate is opening and closing
without hang-ups.
Check venting and fan box on rear of furnace for air
leaks.