Heatmaster MF Series Operation And Maintenance Manual page 17

4. Check that the temperature settings are correct. The
furnace should be set on Heating Mode (H1) and the
high temperature setting should be set no higher than
185° F.
5. Check chimney draft. If the chimney has been
extended too far or has a strong wind blowing over it,
it may cause a draft down the furnace.
6. Check water level.
7. Make sure the door and ash drawer are air tight.
8. Check to ensure all pumps in the system are running.
If the furnace has shut down:
1. Check to ensure that the unit has power (does the
light work?).
2. Check to ensure the Furnace On/Off switch is in the
On position.
3. Check the water temperature (furnace has a high
temperature cut out of 190 degrees F. and turns on
again at 140 degrees).
closed.
2. Close all combustion air inlets on the furnace.
If there is a power failure:
Depending on the system design, this may allow
convective circulation. NOTE: This does not apply to
will continue to operate normally without electricity.
2. It is important to remember that the heating systems
cannot dispose of a great deal of heat without the
LOAD LARGE AMOUNTS OF SOLID FUEL INTO THE
FURNACE! Fire the furnace cautiously until you are
able to determine how quickly the heat system is able
to absorb the heat being produced by the furnace.
and zone valves and resume normal operation of the
system.
If there is smoke leaking out of the door. Small amounts
MF-3000e, MF-5000e, MF-7000e
of smoke leakage is normal due to the fan pressure and
restricted exhaust.
1. Check to ensure door is sealing properly.
2. If the seal is worn out it will have to be replaced.
the Door Latch Bearings and Door Hinge bearings
and set the door so it seals tightly against the door
1. Check to ensure the furnace is sized accurately
according to heat demand. If the furnace is oversized
it will idle and cause this. If the weather is warm or mild
until your next burn time (generally 12 hour burn time
is best). It will allow the furnace to burn more often
during idle, creating less creosote.
2. If the chimney and/or bypass become plugged with
creosote it will be necessary to scrape the creosote out
a week or more then a few gallons of water per week
1. Check the temperature settings and gasket on the
RED
door and ash drawer to ensure the furnace is not
over temperature and steaming. If water temperature
reaches levels over 200 degrees Fahrenheit the water
WHT
will steam and water loss will occur.
2. Check the perimeter of the furnace for water puddles
collecting or dripping from the furnace. If water is
DO NOT
3. Check all plumbing in the system to ensure there are
no leaks.
The Ranco Temperature control is giving the user an
error message.
Instructions for dealing with Ranco ETC settings and error
codes are included in the owner's manual on page 20.
GRN
GRN
YELLOW
BLUE
BLK
BLK
YELLOW
GRN
WHT