Page 14
Troubleshooting Steps
Printed 3/18/98
Travis Industries Pellet Stove Troubleshooting Guide (
1994)
F
LOW
S
WITCH
S
YSTEM
F
AULTY
The flow switch is a safety device used to shut off the auger if the vent becomes blocked, the exhaust blower
shuts off, or a severe down draft occurs. Follow the directions below to check the flow switch system.
To check the flow switch system, do the following:
1. Access the right side of the heater and inspect the flow switch nipple on the
exhaust box for leaks or clogs. If it is clogged, clean it. If it has leaks, replace it.
2. Inspect the tube running from the exhaust box to the flow switch. If it has leaks,
is kinked, or is damaged, replace it.
3. Disconnect the tubing from the flow switch and apply suction to the nipple with a
piece of tubing. Then apply a continuity tester to the two electrical connections on
the flow switch. If the flow switch does not show continuity when suction is
applied, the flow switch will need to be replaced.
4. Check the pellet vent system for clogging.
If the pellet vent is clogged or
restricted, the flow switch will shut the power to the auger off.
Nipple
for
Tubing
Check the two
electrical connections
Mounting
Bracket
Disconnect the two wires leading to the flow switch and jump them. If the heater works
correctly, follow the directions below to check the flow switch system. If the heater
does not work, the flow switch system works - go to the next section "Wiring Faulty"
(make sure to replace the wires after troubleshooting).
Remove the two wires leading to the flow switch and jump
them together. The orientation of the two wires does not
matter when re-attaching them to the flow switch.
Red
White
Exhaust
Housing
Flow Switch Nipple
- Inspect for clogging or leaks
Flow Switch Tubing
- Inspect for clogging, kinks, or leaks
The two electrical connections
should show continuity when
suction is applied here.
Jumper Wire (see the section "Show Up Prepared")
Remedy
Find the faulty component and replace it. If the tubing or nipple is clogged, remove the clogging.
Summary of Contents for 400 PI
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