Tjernlund SS2G SideShot (Discontinued) 8504075 Rev 1 11/98 - Manual (Page 12)

11
TROUBLESHOOTING
The following guide is intended to be used if a problem occurs during the use of the SS2G side wall vent system. At several steps
throughout the guide you will be required to measure voltage with a voltmeter.
Extreme caution must be exercised to prevent
injury. If you are unable to determine the defective part with the use of this guide, call your Tjernlund distributor or Tjernlund
Products direct at 1-800-255-4208 for further assistance.
NOTE: When 120 VAC is applied to SS2G terminals it may start up and run for up to 45 seconds. Do not initiate a call for heat
with the appliance until the SS2G is finished with its post purge time cycle.
SYMPTOM 1: POWER VENTER RUNS CONTINUOUSLY / ERRATICALLY
No
Solution: Replace Relay/Timer Part # 950-0014
non-adjustable or Part # 950-1067 adjustable
Relay/Timer.
Solution: Contact the appliance manufac-
turer for further assistance.
Step 3.
Reinstall the ORANGE wire on Relay. Verify thermostat is not calling for heat.
Interlocked directly with gas valve
Check for 24V across appliance control such as (Aquastat B1/B2), (Intermittent
Ignition Module MV - MV/PV) or (Standing Pilot TH - Hot & TR - Common).
Interlocked with thermostat at furnace
Check for voltage across W & C at thermostat.
No call for heat
Contact Tjernlund Products, Inc. for
additional assistance.
24 Volts present
Step 1.
Confirm that thermostat is not
calling for heat.
Step 2.
With the Power Venter running, remove the ORANGE wire
on Relay/Timer terminal #5.
Result: Power Venter should shut off within approximately 45
seconds.
Yes
24 Volts not present
SYMPTOM 2: POWER VENTER DOES NOT RUN DURING CALL FOR HEAT
Step 1.2
Interlocked directly with gas valve
Check for loose connections between
appliance and Power Venter.
Interlocked with thermostat at furnace
Contact T-Stat manufacturer for further
assistance.
24V
24Volts
Not Present
No
No
Solution: Contact appliance manufacturer
for further assistance.
Step 1.1
Interlocked directly with gas valve
Verify 24V across appliance control such
as (Aquastat B1/B2), (Intermittent Ignition
Module MV - MV/PV), or (Standing Pilot
TH - Hot & TR - Common) during call for
heat.
Interlocked with thermostat at furnace
Verify 24V across R & C on furnace ter-
minal strip.
Step 2.
Remove 115V power source to
the Power Venter. Remove
the two BLACK leads from the
Relay and connect them
together. Reestablish 115V.
Result: Power Venter runs
continuously.
Solution: Replace Relay/Timer
Part # 950-0014 or Part #
950-1067 adjustable Relay/Timer.
24V
Solution: Replace Power Venter Motor.
Part # 950-0015.
Yes
Step 1.
Activate thermostat to call for
heat. Check for 24V across
terminals 4 and 5 of the
Relay/Timer.