Tjernlund PAI-1 & 2O Combustion Air In-Forcer 8504038 Rev A 05/01 - Manual (Page 17)

16
HOW TO OBTAIN SERVICE ASSISTANCE
1. If you have any questions about your IN-FORCER or if it requires adjustment, repair or routine maintenance, we suggest that
you contact your installer, contractor or service agency.
2. If you require technical information contact Tjernlund Products, Inc. at 1-800-255-4208.
When contacting Tjernlund Products, Inc., please have the following information available:
1. Model number and date code of the IN-FORCER
2. Name and address of installer and service agency
3. Date of original installation and dates any service work was performed
4. Details of the problem
LIMITED PARTS WARRANTY AND CLAIM PROCEDURE
Tjernlund Products, Inc. warrants the components of the IN-FORCER for one year from date of installation. This warranty covers
defects in material and workmanship. This warranty does not cover normal maintenance, transportation or installation charges for
replacement parts or any other service calls or repairs. This warranty DOES NOT cover the complete IN-FORCER if it is operative,
except for the defective part.
Tjernlund Products, Inc. will issue credit or provide a free part to replace one that becomes defective during the one year warranty peri-
od. If the part is over 18 months old, proof of date of the installation in the form of the contractor sales / installation receipt is necessary
to prove the unit has been in service for under one year. All receipts should include the date code of the IN-FORCER to ensure that the
defective component corresponds with the complete unit. This will help preclude possible credit refusal.
115V not present
No No
SYMPTOM 3: IN-FORCER PAI-G (GAS) SERIES WILL NOT RUN ON CALL FOR HEAT
Step 2.
With thermostat calling for heat, measure for 24
volts across the ORANGE and BLUE terminals on
IN-FORCER relay.
Result: Measure 24V.
Step 1.
Confirm that all 115 volt circuits are complete to
the IN-FORCER. Check the electrical plug to wall
receptacle, fuses and circuit breakers.
Step 5.
Repeat step 1-4 or contact Tjernlund Products for
further assistance.
115V is present
Yes
Yes
Yes
Solution: Reestablish 115 volts to IN-FORCER.
No
Solution: Contact
appliance / thermostat
manufacturer for further
assistance.
Note: For further assistance contact Tjernlund Products, Inc.
Technical Customer Service Department at 1-800-255-4208.
Step 3.
With 24 volts present across the ORANGE and BLUE
leads of relay, check for voltage across the YELLOW of
Fan Proving Switch and ORANGE of relay.
Result: Measure 24V.
Step 4.
Caution: Disconnect the 115 volt power supply to the IN-
FORCER before attempting the following procedure.
a) Remove the two BLACK leads from contact side of
relay and connect them together.
b) Reestablish the 115 volt power source to IN-FORCER.
Result: IN-FORCER should run constantly.
Step 2.1
Measure voltage on
thermostat or aquastat
when calling for heat.
Result: Measure 24 V.
Yes
Solution: Replace IN-FORCER relay.
Part # 950-1040
No
Solution: Replace IN-FORCER motor.
Part # 950-3022.