Lydall AFFINITY P Series

Questions and Answers

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Mark CruzAug 10, 2025
Why Lydall Chiller does not cool?
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  Michelle RussellAug 10, 2025
  If your Lydall Chiller isn't cooling, consider these possibilities: * The cooling load might exceed the chiller's capacity. Try reducing the cooling load. * The microprocessor could be programmed incorrectly. Reprogram it. * There might be a loss of refrigerant. In that case, repair the leak and recharge the system with the type and amount of refrigerant specified on the serial tag. * A relay or coil failure could be the culprit. Replace the faulty relay or coil. * The thermal expansion valve might be open too much or malfunctioning. Replace or adjust it.
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Gabriela CoxAug 16, 2025
What to do if my Lydall Chiller pump flashes?
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  Angela HaynesAug 16, 2025
  The Lydall Chiller pump flashes in response to a signal from the flow switch in the pump discharge line, indicating low (less than ½ gallon per minute) or no flow. You should: * Check if the pump is running or stopped. * Check if the pump is mechanically operable. * Check if the overload is open or closed. * Ensure that sufficient liquid is available. Note that the “Start” on overload must be depressed for the pump to start after a fault.
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Jennifer RobertsAug 21, 2025
What to do if my Lydall Chiller does not cool and compressor internal thermostat tripped?
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  Kristen RitterAug 21, 2025
  If your Lydall Chiller isn't cooling and the compressor's internal thermostat has tripped, allow the compressor time to cool down. Then, determine the cause of the issue and repair it.
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Michael TorresAug 27, 2025
What to do if Lydall Chiller shows LOW LEVEL?
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  Dustin WhitakerAug 28, 2025
  If your Lydall Chiller displays a 'LOW LEVEL' warning, it indicates a low level in the reservoir. This is likely due to coolant leakage or evaporative loss. Inspect the chiller for leaks, repair any you find, and then refill the reservoir.
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Christine SnyderNov 3, 2025
What to do if my Lydall Chiller does not start?
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  Michael CaldwellNov 3, 2025
  If your Lydall Chiller doesn't start, there are several potential causes: * **Faulty electrical service:** Check the secondary side of the 24-volt transformer. If it's OK, the fault is in the control circuitry; if not, the fault is in the power supply. * **Improper voltage and/or phase:** Inspect the Phase Reverse Relay or Phase Monitor in the electrical box and correct the phase/voltage as needed. * **Tripped breaker:** Check and reset the transformer breaker, circuit breaker in the electrical box, or the main breaker (after determining the cause of the trip). * **Compressor issues:** A compressor high discharge pressure shutdown or a tripped internal thermostat may be the reason. Cycle power by closing the main circuit breaker. * **Loss of refrigerant:** If there's low suction...