PSG CADDY ALTERNA II, Installation And Operating Instructions Manual

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the heat at the exhaust. When the furnace is cold, check page 1 in the "TROUBLESHOOT FURNACE"
menu if the temperature di
splayed on the line “EXAUST TEMP” displays a value equal to the ambient
temperature in the room where the appliance is installed. If this is the case, turn on the furnace and check
the same temperature display. If after 10 minutes, the value has not increased despite the unit is in
operation this means that the temperature sensor is disconnected or defective. If the temperature rises, the
problem may be with the feed rate or pilot mode. Depending on many factors (ambient temperature, pellet
quality, etc.) the heat produced by the furnace may not be sufficient to keep the exhaust temperature high
enough. To resolve the situation increase feed rate (see
Section 7.3.2: Combustion Settings and Pilot
Settings depending on Fuel Quality ).
10.3.3 FAILED IGNITION
❖
Inadequate fuel is used. Remove the burn pot, make sure that all openings are clear and check that no
ash has filled the tube around the igniter. Refer to the maintenance section. Also, make sure that
recommended fuel is used (see
Section 6.2.1: Proper Fuel ).
❖
The igniter is defective. Go to the
“TROUBLESHOOT FURNACE” page (see
Section 10.2: Testing
Components ) and follow instructions for component check. Test the igniter to see if it glows. It should take
no longer than two minutes. If it does not glow red, check the wiring and the G fuse (see Section 11.9:
Access the fuses) . If the wiring is properly connected and the fuse is good, disconnect the igniter and
check its resistance (ohms, Ω) with a multimeter. If the value is near zero, replace the igniter.
❖
The flue temperature sensor failed. The exhaust RTD is a heat sensor located on the bottom exhaust box.
Its function is to tell the pellet control board that the furnace has ignited properly by measuring the heat at
the exhaust. When the furnace is cold, c
heck page 1 in the “TROUBLESHOOT FURNACE” menu if the
temperature displayed on the line “EXHAUST TEMP” displays a value equal to the ambient temperature in
the room where the appliance is installed. If this is the case, turn on the furnace and check the same
temperature display. If after 10 minutes, the value has not increased despite the unit is in operation this
means that the temperature sensor is disconnected or defective. If the temperature rises, the problem may
be with the feed rate or pilot mode. Depending on many factors (ambient temperature, pellet quality, etc.) the
heat produced by the furnace may not be sufficient to keep the exhaust temperature high enough. To
resolve the situation increase feed rate (see
Section 7.3.2: Combustion Settings and Pilot Settings
depending on Fuel Quality ).