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Ann WalkerSep 12, 2025
What to do if my Hayward H350FDP Heater displays 'Blower Vacuum Switch closed'?
- CChristopher StuartSep 13, 2025
If your Hayward Heater displays 'Blower Vacuum Switch closed', check the blower vacuum switch for issues.
What to do if my Hayward H350FDP Heater displays 'Blower Vacuum Switch closed'?
If your Hayward Heater displays 'Blower Vacuum Switch closed', check the blower vacuum switch for issues.
General| Model | H350FDP |
|---|---|
| Category | Heater |
| Heating Capacity | 350, 000 BTU |
| Fuel Type | Natural Gas or Propane |
| Thermostat | Electronic |
| Weight | 150 lbs |
| Efficiency | 80% |
| BTU Input | 350, 000 BTU |
| Heat Exchanger Material | Cupro-Nickel |
| Warranty | 1 Year |
| Ignition Type | Direct Spark |
| Water Flow Rate | 30-120 GPM |
