Tjernlund VP-2F, VP-3F Airotronics Timer 8504140 Rev A 11/11 - Manual (Page 13)

12
Note: For further assistance contact
Step 3.2
Step 6
Step 3.1
Step 5
Solution
Step 4
Solution
Step 3
Step 2
Step 1
Symptom 2
at 1-800-255-4208, 7:30 - 4:30 CST.
Technical Customer Service Department
the Tjernlund Products, Inc.
Yes
Yes
Yes
No Blockage
No
No
Yes No
Yes
Venter will not run.
Establish that all 115 volt circuits are
complete to the Power Venter. Check
the electrical plug to the wall receptacle,
circuit breakers, and fuses.
CAUTION: Disconnect the 115 volt
power supply to the Power Venter be-
fore attempting the following procedure.
a) Remove the two Black leads from
Remove the 1/4" tubing from the
Tjernlund Gas Pressure Switch and
check ends of the tubing for blockage
Check for gas pressure at the Pressure
Tap Port on the gas valve while the
burner is operating.
Consult with water heater manufacturer
for further assistance.
Re-establish 115 volts to the Power
Venter.
Replace the Power Venter motor.
Motor Part Number
VP-2F 950-2020
Measure the voltage on terminals 4
and 5 on the Relay/Timer.
Measure the voltage on the secondary
side of the 115/24 volt transformer.
the Relay/Timer and connect them
8079002 7-18-07
Solution
Part # 950-0014 non-adjustable,
Replace the Relay/Timer.
or Part # 950-1067 one to ten minute
No
VP-3F 950-1020
together.
supply to the Power Venter.
b) Re-establish the 115 volt power
Result: The Power Venter should run
constantly.
Result: At this time you should measure
approximately 24 volts.
No
Replace the 25' Control Cable from
the electrical box to the Gas Pressure
Yes
Switch.
Solution
Replace the Transformer.
No
Solution
Part # 950-2030
Result: At this time you should measure
approximately 24 volts.
Result: The Power Venter should run
the Gas Pressure Switch.
b) Jump the Red and Blue leads from
Step 2 to their original terminals.
a) Reinstall the two Black leads from
fore attempting the following procedure.
power supply to the Power Venter be-
CAUTION: Disconnect the 115 volt
constantly.
supply to the Power Venter.
c) Re-establish the 115 volt power
Repair or replace the 1/4" tubing as
necessary.
Solution
Replace the Tjernlund Gas Pressure
Yes,
Switch. Part # 950-2080
Solution
or kinks.
Result: Pressure is present.
Blockage
adjustable.
Note: For further assistance contact the Tjernlund
Products, Inc. Technical Customer Service
Department at 1-800-255-4208, 7:30 - 4:30 CST.
NOTE: If the pilot light is extinguished, follow the steps under “IN THE
EVENT OF A PILOT OUTAGE” on page 1 of these instructions before continuing.