Sierra Products EasyFire MODEL EFI 4000 - Manual (Page 17)

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trim settings m ay cause the opposite problem as the heater feeds to m uch fuel and allows the HIGH TEMP control stop
the feed to cool the stove. Best starting trim setting is the m id point or 9:00 o-clock.
High tem p starts will also occur if the burn pot has additional fuel prior to start up. This additional fuel which is then added
too as the start cycle begins pushes the tem peratures up as the heater starts. This is considered an tem perature
overshoot as the tem perature clim bs quickly.
Heater will not start when run button is pushed - Check external therm ostat jum per or rem ote therm ostat as the unit will
not attem pt a start unless this circuit is closed.
Run mode Troubleshooting:
Once the heater reaches the run m ode it will continue operation by using the coals in the burn pot to light the pellets
continuing to fall. If the coal bed burns down at som e point the pellets m ay not light and then the heater will shut down.
This is norm ally confirm ed by finding the burn pot with unburned fuel and shut off. This can also happen if the hopper runs
low on fuel or the fuel bridges (hangs on the hopper sides).
Run m ode problem generally are either operational or lim its exceeded - Blocked Flue (loss of flue draft) or High
Tem perature is exceeded. Blocked flue indication is a solid RED LED on the control panel and requires a recycle of the
heater to clear. This is for the operators protection as a blocked flue could cause a dangerous condition. Block flue m ost
likely is not fully blocked and will occur if the flue pipe is subject to high wind conditions or is blocked by ash. If this
happens during initial installation a corrective action to the flue system will be required. Check the installation m anual for
flue recom m endations.
Operational problem s are generally related to ash build up in the burn pot or the heat exchange system and can be correct
by cleaning.
Over Feeding - Over feeding is a com m on problem and is related to a lack of com bustion air rather than to m uch fuel. If
the heater is clean and seem s to feed m ore fuel adjust the trim down to slow the feed rate. If the heater has been operated
for som etim e since the last cleaning then shutting it down and cleaning will solve the over feed. Check the door for proper
adjustm ent as a partially closed door will cause reduced com bustion air. Operating the heater for an extended tim e with an
open door will cause a shut down with RED LED and require a restart.
Im m ediate RED LED when a run m ode is selected indicates a failed sensor (generally a T-1). Replacem ent of sensors are
accom plished by rem oving the rear access panel and norm ally requires rem oving the flue pipe. Review repair m anual for
additional inform ation.
Shutdown:
Shut down is the sim plest m ode as the feed is stopped and the fan continues to operate until the heater is cool. If the fan
continues to run after it is fully cold then the T-2 sensor and the m ain control did not register the required tem perature
reduction. Unplug the heater to reset and run again. If problem persists then the T-2 sensor or the control system will
require com ponent replacem ent.
Battery Operation Troubleshooting -
Battery operation requires a fully charge 12VDC battery capable of sustained 2 am p/hr. loads while m aintaining a m inim um
of 11.2 VDC. This voltage is required for proper system operation. Most battery operation problem s can be traced to a
battery in pour condition.
Quick Testing
Rem ove battery from heater and charge overnight with autom otive type battery charger. Test battery with autom otive load
tester. Replace if required. Testing connections from term inals on rear of heater back to the harness. If all connects are
secure a m ain control board will be required.
Additional detailed inform ation is contained in the installation and repair m anuals. Please refer to these for in depth
troubleshooting guides and harness replacem ent.