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Observed Fault
Buildup of
clinker in
Burn Pot
Excessive
noise or
vibration
F:\C - E\ECOMAX\COAL BOILER\Instructions and Manuals\Coal Boiler Manual Rev 6.doc
Page 31 of 36
Possible Cause
Burn pot has
clinker (fused
ash)
Burn Pot worn
out
Burn Pot retort
blocked
Heat Exchanger
Tubes blocked
Ash Pan too full
Burn Pot burnt
out
Access doors
open
Door seal failure Replace any missing or damaged seals
Boiler running
cold
Bad batch of
coal
Pump running
continuously
(unless using a
mixing valve)
Pump
thermostat
faulty
Flue and
appliance
requires
cleaning
Appliance not
fixed to floor
Internal
components
loose
Solution
When cold, clean out Burn Pot and Retort of
all ash/clinker
Replace Burn Pot
Open Ash Valve and clean out all ash inside.
Use the spanner to lift the Scrubber Coils up
and down to scrape the Heat Exchanger Tubes.
If they are jammed they need to be freed.
Remove Ash Pan and dispose of ash. Vacuum
or brush all ash from Ash Pan area inside
appliance when cold.
If the Burn Pot has severely deformed it may
need to be replaced.
Make sure the Ash Pan is fully sealed in place,
the Combustion Chamber Door and plate at the
top of the Combustion Chamber are fully and
completely closed and the seals are effective
If the water in the water jacket is constantly
low (below 65°) the boiler cannot run
efficiently. Check that the pump is not running
all the time, or adjust the mixing valve.
Reduce coal feed until coal is used up and
purchase a different grade of coal.
Pump must be wired to boiler as per wiring
diagram
If the pump is not switching on and off as the
boiler heats and cools, the pump thermostat
may need to be replaced.
Thoroughly clean flue, cowl and appliance as
per maintenance schedule
Check fastenings have not come loose.
Thoroughly check all moving components and
fastenings to make sure they are tight.
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