Heat Transfer TX Series

Questions and Answers

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Christopher JohnsonJul 31, 2025
Why does the Temperature and Pressure relief valve “pops” in my Heat Transfer TX?
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  Miss Sarah NguyenJul 31, 2025
  If the Temperature and Pressure relief valve of your Heat Transfer Water Heater keeps popping, make sure the expansion tank in the closed loop piping system is properly sized and installed. Reduce the system water pressure below the relief valve setting. Inspect and adjust or replace the relief valve if needed. Check the aquastat setting and readjust if necessary, replacing it if faulty.
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Michael JacksonAug 5, 2025
How to fix too high DHW supply temperature in Heat Transfer TX Water Heater?
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  Christine CollinsAug 5, 2025
  If the DHW supply temperature from your Heat Transfer Water Heater is too high, check the aquastat settings and readjust if they're set higher than needed. Repair or replace the aquastat if it's faulty. Also, check the circulator's on/off temperature settings and electrical wiring. Inspect, repair, or replace the relay switch or aquastat if they aren't working correctly. Finally, ensure the water heating piping and components are installed according to the instructions in Section 4.2.
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Lisa RichardsonAug 9, 2025
How to stop a loud banging noise in Heat Transfer Water Heater?
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  Jamie Combs PhDAug 9, 2025
  If you hear a loud banging noise in your Heat Transfer Water Heater or water piping, rearrange the water return piping and inspect the valve for proper drainage. Ensure there are no restrictions in the water return line and replace the check valve if it's leaking or has failed. Install a properly sized expansion tank in the closed loop piping system as shown in Installation and Piping drawings in Section 6.3. Install water hammer arrestors/shock absorbers in the hot and cold water systems as needed, and check for any trapped air in the domestic water system to avoid shock waves.
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Jon GriffinAug 13, 2025
What to do if entire Heat Transfer TX Water Heater system is OFF?
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  Casey CarterAug 14, 2025
  If your entire Heat Transfer Water Heater system is OFF, check that the service switch/fuse is ON and that there is a power supply available. If the ON/OFF switch is faulty, replace it.
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David HortonAug 18, 2025
Why Heat Transfer TX is not able to maintain the required temperature?
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  davidmccarthyAug 18, 2025
  If the Heat Transfer Water Heater can't maintain the required temperature or has a slow recovery, check the aquastat settings and readjust if they are below the desired temperature. Also, check that the boiler water inlet temperature gauge reading matches the design conditions, and readjust the boiler supply water temperature if needed.
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Mr. Richard GreenAug 21, 2025
How to prevent excessive boiler cycling in Heat Transfer Water Heater?
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  Scott HartAug 22, 2025
  If your Heat Transfer Water Heater is experiencing excessive boiler cycling, check and readjust the set point settings on the aquastat, replacing it if faulty. Ensure the water heater isn't undersized for the load; consider using a larger unit if needed. Increase the boiler temperature limit settings.
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Wayne TurnerOct 26, 2025
What to do if my Heat Transfer TX Water Heater is not heating the water?
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  Amanda GreenOct 26, 2025
  If your Heat Transfer Water Heater isn't providing hot water, start by checking that the isolation valves on both the boiler and domestic water piping are open. Ensure the aquastat is properly set; readjust if the temperature is below what's needed, and replace it if it's faulty. Confirm the boiler is running, referring to its startup or installation instructions if necessary, and verify its power supply. Inspect the boiler feed circulation pump for proper operation, repairing or replacing it if it's not working right. Clean the heat exchanger coil following the instructions. Also ensure the water quality levels are within the allowable limits. Blowdown and clean the strainer. Make sure the power switch is ON and there's a power supply. Lastly, check the power supply to the zone valve (if ...