Évaluations - 3, GPA: 3.7
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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 valve, - connect gas pressure gauge to gas pressure tap, relight pilot, - rotate thermostat dial to call for heat, then - place top knob on gas valve to "ON" position. (Caution: check for gas leaks) RESULTS If the gas pressure gauge: then: does not pressurize to read (4.0 " w.c. natural gas or 10 " w. c. propane gas), replace the valve. does pressurize to read (4.0 " w.c. natural gas, 10 " w c. propane gas) the gas valve is OK. Continue to Step 1 of the troubleshooting procedures. ©1995 A.0. Smith Technical Information Water Products Co. 25 Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Trouble- BLOWER DOES NOT RUN shooting cont. First make the Preliminary Checks (see page 24), then perform each of the following tests until cause of the failure is determined: 1. Blower Test 2. Cable Test 3. Harness Cautions When performing the following troubleshooting procedures you will be required to jump out parts of the electrical circuit. 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 Water Products Co. 26 Technical Information Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Trouble- BLOWER DOES NOT RUN cont. shooting cont BLOWER TEST s T 1 E SET UP THE TEST - Disconnect the 4 wire cable from the fan control box, then - using an insulated jumper wire (caution 120 VAC), jump between pins 3 and 4 on receptacle as shown. P RESULTS If: then: the fan does not run, replace the fan assembly. the fan does run, go to Step 2. A.O. Smith Water Products Co. 27 Technical Information FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Trouble- BLOWER DOES NOT RUN cont. shooting cont. CABLE TEST SET TEST UP - Reconnect the 4 wire cable onto the fan control box, - disconnect the cable from the control cover below, then - using an insulated jumper wire, jump between pins 3 and 4 on plug as shown. RESULTS If: then: the fan does not run, replace the cable. the fan does run, go to Step 3. FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Trouble- BLOWER DOES NOT RUN cont shooting cont RESULTS If: then: the fan does not run, replace the harness. the fan does run, replace the gas pressure switch. ©1995 A.O. Smith Technical Information Water Products Co. 29 Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont. Trouble- shooting cont. BLOWER RUNS CONSTANTLY (NO CALL FOR HEAT) First make the Preliminary Checks (see page 24), then perform each of the following tests until cause of the failure is determined: 1. Blower Test 2. Cable Test 3. Harness Test Cautions When performing the following troubleshooting procedures you will be required to jump out parts of the electrical circuit. 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 Water Products Co. 30 Technical Information FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Trouble- BLOWER RUNS CONSTANTLY (No call for heat) cont shooting cont BLOWER TEST s SET UP THE TEST T 1 E P - Disconnect the 4 wire cable from the fan control box as shown. RESULTS If: then: the fan continues to run, replace the fan assembly. the fan stops, go to Step 2. mmmi. ©1995 A.O. Smith Water Products Co. 31 Technical Information Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Trouble- BLOWER RUNS CONSTANTLY (No call for heat) cont. shooting cont CABLE TEST s T 2 SET UP THE TEST - Reconnect the 4 wire cable onto the fan control box, then - disconnect the cable from the control box cover below as shown. E P RESULTS If: then: the fan continues to run, replace the cable. the fan stops, go to Step 3. ©1995 A.O. Smith Technical Information Water Products Co. 32 Irving, Texas FPS/FPSE/FPD TECHNICAL TRAINING AND SERVICE WORKBOOK FPS 40 and 50 SERVICE AND OPERATION cont Trouble- BLOWER RUNS CONSTANTLY (No call for heat) cont. shooting cont HARNESS TEST s SET UP THE TEST - Reconnect the 4 wire cable onto the cont...
Ce manuel est également adapté pour les modèles :Chauffe-eau - FPS40 (20.63 mb)
Chauffe-eau - fps50 (20.63 mb)
Chauffe-eau - FPSE50 (20.63 mb)