Hayward Universal H-Series Low NOx Service/Installation: H150FDN H200FDN H25 - Page 55

55 Figure 53: Troubleshooting Code None Fault Diagnosis Step Open FC3 and/or 1. Check for faulty Gas F1 Fuses Valve wiring. 2. Verify that Gas Valve is not defective. 3. Check for faulty Control Module wiring. 4. Control Module is defective. Remedy Inspect Gas Valve wiring. Ensure insulation on wiring is not worn. If OK, proceed to step 2. Mesure for resistance across Gas Valve terminals and between each terminal and ground. If short exists, replace Gas Valve. If OK, proceed to step 3. Inspect Control Module wiring. Ensure insulation on wiring is not worn. If OK proceed to step 4. Replace Control Module. None bD EE CE IO Sb Open FC4 Fuse. 1. Check for faulty Igniter wiring. 2. Check for faulty Blower wiring. 3. Check for defective Igniter. 4. Check for defective Blower. 5. Control Module is defective. Inspect Igniter wiring. Ensure insulation on wiring is not worn. If OK, proceed to step 2. Inspect Blower wiring. Ensure insulation on wiring is not worn. If OK, proceed to step 3. Disconnect Igniter plug from Control Module. Measure resistance across Igniter. Resistance should be 10.9-19.7 ohms at at 77°F. If out of this range, replace igniter. If OK, proceed to step 4 Disconnect Blower plug from Control Module. Measure resistance across Blower windings. Winding resistance across lead should be in the following range: Red-to-White: 8 to 9 ohms. If measured values vary substantially from these values, blower is defective. Replace. Otherwise proceed to step 5. Replace Control Module. Bad Board or Secondary Hig Voltage Fault Bad Board 1. Verify that FC4 Fuse on Fuse Board is not open. Remove FC from fuseholder. Mesure continuity across fuse. If OK, reinstall fuse and proceed to step 2. If Fuse is open, proceed to section titled ''Open FC4 Fuse''. 2. Verify high voltage output Disconnect plug from P6 connector of Fuse Board. Measure for from Fuse Board. 120VAC across pins 3 and 5 of P6 receptacle on Fuse Board. If OK, reconnect plug and proceed to step 3. If not OK, go to step 4. 3. Check for defective Harness. Disconnect plug from E10 connector of Contol Module. Measure for 120VAC across pins 1 and 3 of Plug on Harness. If OK, replace Control Module. If not OK, replace Harness. 4. Check for defective Transformer. Disconnect plug from P4 connector of Fuse Board. Measure for 120VAC between pins 4 and 6 of plug from Transformer. If OK, proceed to step 5. If not OK, replace Transformer. 5. Fuse Board is defective Replace Fuse Board. 1. Defective Control Module Replace Control Module. Communication Error between Control Module and Display Interface Assembly Igniter Failure Keypad Failure 1. Disconnect and then reconnect power to heater. 2. Check for faulty wiring or Inspect Display Interface Wiring. Ensure Display Interface Plug is connection. securely attached to Control Module. If OK, proceed to step 2. 3. Control Module and/or Replace Control Module and/or Display Interface Assembly. Display Interface Assembly are defective. 1. Check for faulty wiring or Inspect Igniter wiring. Ensure Igniter Plug is securely attached to connection. USE COoNntrLoYl MHodAuYleW. IAf ORKD, pGroEceNedUtoINsteEp 2R.EPLACEMENT PARTS 2. Igniter is defective Replace Ignitier. Pomona, CA Clemmons, NC Nashville, TN 1. Keypad is defective Replace DisplaTyeIln:te9rf0ac8e-3A5ss1e-m5b4ly0.0 www.haywardpool.com