Sierra Products EasyFire MODEL EFI 4000 - Manual (Page 7)

7
SERVICE CALLS
The objective when m aking a service call is to get the custom er up and running as quickly as possible. For this reason the
best m ethod of attack is to find the problem quickly and isolate the faulty com ponent and swap it out with the good com ponent
in your dealer service kit. The defective m odule or part can then be repaired to returned to the factory away from the
custom er's hom e.
W ith this objective in m ind the EasyFire troubleshooting can be divided into six (6) general categories:
1. The fan and feed m otors.
2. The m ain circuit board.
3. The switch (control knob) circuit board.
4. The tem perature sensors T-1 and T-2.
5. The AC power line com ponents, i.e.,
6. The wiring harness and connectors thereto.
These six (6) areas represent the areas where problem s m ight occur. They are listed in the order of highest probability,
based on their history and level of com plexity. The design of the electronics has been done with reliability as the highest
priority, and the com ponents which are under the m ost electrical or therm al stress are very conservatively rated.
The m ain board has been listed second due to the large num ber of parts, which increases its chances of failure on a
statistical basis. In practice, however, it should be the m ost reliable due to the rigorous test procedure each board goes
through before being installed on the stoves. Because of this m echanical item s such as the m otors should be suspect first.
Rem em ber, ninety per cent (90% ) of pellet stove failures are due to im proper m aintenance by the end user! Check the stove
for cleanliness and routine m aintenance before doing any m echanical service work.
Following is a list of com plaints and/or service problem s which represent at least ninety five (95% per cent of possible service
calls:
1. Stove not running at all.
2. Feed m otor runs, but no fan.
3. Fan m otor runs, but no feed.
4. Stove runs, but shuts down about 10 m inutes after start up.
5. Stove runs, but keeps shutting down with over-tem p (red)
LED com ing on.
6. Stove runs, but heat output rem ains at the LOW level, even
when switch is on HIGH.
7. Stove does not run on battery or battery does not charge.
8. Stove runs on FAN position but when switched to LOW , MEDIUM
or HIG H shuts off im m ediately.
9. Stove seem s to be running very HIG H or CLEAN m ode at all
tim es.
10. Fan speed seem s norm al for each position, but feed rate
seem s excessive even on LOW .
Following is a trouble shooting Flow Chart for each of the problem s outlined above. If you follow the flow chart carefully each
of the problem s can be solved quickly and easily.