Irving, Texas Printed in the U.S.A. 596 4575 Series 226-227 Part No. TC-034 FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK WORKBOOK INTRODUCTION Purpose The information contained in this workbook is designed to answer situations commonly encountered in the operation of the POWER SHOT and SEALED SHOT Product and is not meant to be all inclusive. If you are experiencing a problem not covered in this workbook, please contact the A.O. Smith Technical Information Department at (800)527-1

Turn the switch on the blower off when inserting the jumper wire. Then turn the switch back on. Use extreme caution as you may be working with 120 VAC. ©1995 A.O. Smith Technical Information Water Products Co. 24 Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Troubleshooting cont PRELIMINARY THERMOSTAT TEST SET UP THE TEST - Place top Knob on gas valve to "OFF" position, - remove pressure tap set screw from bottom of gas valv

Then turn the switch back on. Use extreme caution as you may be working with 120 VAC. ©1995 A.O. Smith Technical Information Water Products Co. 51 Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK Troubleshooting cont BLOWER RUNS CONSTANTLY (No call for heat) cont. BLOWER TEST SET UP THE TEST - Disconnect the 4 wire cab e from the blower contro box as shown RESULTS If: then: the blower continues to run, replace the blower. the blower stops, go to Step 2. FPSE 40 an

Smith Technical Information Water Products Co. 78 Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 75 SERVICE AND OPERATION cont. Trouble- shooting cont BLOWER RUNS CONSTANTLY (CALLING FOR HEAT, NO PILOT) First make the Preliminary Checks (see page 71) then perform each of the following tests until cause of the failure is determined: 1. Air Pressure Switch Test 2. Vent High Limit Test 3. Blower Test 4. Cable Test 5. High Limit Test 6. TH Wire Test 7. PV - MV

3. Disconnect the electric connection by unplugging the transformer from the wall outlet (Figure 58). 4. Remove the manifold cover/ outer door from the unit by depressing on the lower portion and pulling outward. 5. Unplug the 3-wire pressure switch/fan/sensor electrical connection of the wiring harness from the gas control valve/thermostat by depressing the lower portion of the snap clip to open and pulling down the connector (Figure 59). 6. Unplug the electric flag terminals and air pressure t

IF YOU ARE UNSUCCESSFUL, CONTACTA. O. SMITH WATER HEATERS RESIDENTIALTECHNICALASSISTANCE AT 1-800-527-1953 OR WWW.HOTWATER.COM. 2 SERVICE HANDBOOK Your safety and the safety of others is extremely important in the servicing of this water heater. Many safety-related messages and instructions have been provided in this handbook and on the water heater to warn you and others of a potential hazard. Read and obey all safety messages and instructions throughout this handbook. It is very important that

Using a phillips head screwdriver remove the 2 screws attaching the burner to the manifold pipe (saving screws for reinstallation later) (Figure 99). Installing New Burner : 12. Care MUST be taken to ensure the burner is installed correctly on the inner door/manifold assembly. Position the new burner upside down with the orientation of the burner’s condensation drain as shown in illustration (Figure 99). 13. Align the screw holes on the inner door/manifold assembly. Using the two screws removed

Peak hot water demand. washing machines, dishwashers, The next step is to determine how much hot water will be required during the busiest usage period (“peak demand”). To use the chart, consider all appliances and fixtures that use hot water including lavatory faucets, kitchen faucets, showers and bathtubs. Be sure to determine how many appliances and fixtures will be used at the same time (“peak demand”). Ground Water Temperature Zone Appliances or fixtures in simultaneous use during peak dema

Peak hot water demand. washing machines, dishwashers, The next step is to determine how much hot water will be required during the busiest usage period (“peak demand”). To use the chart, consider all appliances and fixtures that use hot water including lavatory faucets, kitchen faucets, showers and bathtubs. Be sure to determine how many appliances and fixtures will be used at the same time (“peak demand”). Ground Water Temperature Zone Appliances or fixtures in simultaneous use during peak dema

– Max. input: 19,000 – 237,000 BTU • Max. temperature: 185°F with Commercial Controller • Ideal for small restaurants, multifamily housing, hair salons and spas, laundromats, car washes and other limited commercial needs Excellent Performance ¦ 12-year limited warranty on heat exchanger, 5-year warranty on all parts ¦ Can be installed outdoors, saving valuable indoor square footage