Hayward H250FDN Manual

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Universal H Series Troubleshooting Guide


Page 16
How To: Test/Adjust Gas Pressure Measure the inlet static pressure (valve off) & load pressure (valve on / energized), as shown below. Step 1 Measure the outlet manifold pressure (valve on / energized). Step 2 The static & load values should be within the levels listed on the data plate, example on Page 17. Manifold reading should be between 1.8"- 2.0" w.c for natural Gas or 6.8"- 7.0" w.c for proper gas line sizing. 16 NOTE: Please refer to Installation Manual for propane.
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Universal H Series Troubleshooting Guide


Page 17
... valve clockwise, (counter clockwise to step 4. How To: Test/Adjust Gas Pressure (cont.) NOTE: IF incoming gas pressure is high or low, go to installation manual and/or contact installer. 17 IF it does, continue to reduce pressure). *NOTE: Before any adjustment occurs, verify inlet gas pressure meets the requirement set...
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Universal H Series Troubleshooting Guide


Page 40
...;? Replace ICB: FDXLICB1930 Make sure water inlet & outlet are YES plumbed correctly, are they reversed? NO Replace thermistor: FDXLTER1930 Plumb correctly in compliance with installation manual NO YES Ohm thermistor, checking each red to YES black, do the readings differ by more than 1°? NO Replace ICB: FDXLICB1930 Replace thermistor: FDXLTER1930...
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Universal H Series Troubleshooting Guide


Page 50
... open, replace the vent pressure switch (pg. 20). Failure to 11I. 50 IF OK, go to properly size venting may result in the heater's Installation Manual/Indoor Vent Instructions. Disconnect wires from vent pressure switch and measure continuity between VPS terminals.
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uhs_qrg_20f0


Page 1
... into the fused wiring panel. 110 - 130VAC, 2A, 50/60Hz OR 220 - 250VAC, 1A, 50/60Hz 120VAC/240VAC Power & Remote 240V FACTORY WIRED 120V SEE MANUAL L1 L2 G L1 N G 120 V 240 V 2-Wire Remote COM POOL/ SPA 3-Wire Remote SPA COM POOL 240VAC is the factory default RED WHT ORG Heat Exchanger...
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uhs_qrg_20f0


Page 2
...indicates max temp for 104 (default) ashing Max Pool Temp Limit is Pre-set To Energy-saving 90 F, See Owner's Manual. To take a closer look or see other Hayward products please go to appear. Voltage polarity reversed, low voltage detected Sb - STANDBY SPA POOL Max Pool Temp Limit is... Pre-set To Energy-saving 90 F, See Owner's Manual. Pool; POOL 90 (default) ashing Max Pool Temp Limit is Pre-set ...

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My hayward H250FDN pool heater runs for about a minute then
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We have the following 5 documents available for the Hayward H250FDN:
  • Universal H Series Troubleshooting Guide
  • UHS Heater - How To Guide
  • LITUHSBRO23_Universal_H_Series_Brochure_DIGITAL_4ce2
  • uhs_qrg_20f0
  • Energy Guide Label
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