Vulcan Water Heater Troubleshooting - PartsFPS


Is your Vulcan water heater is not working properly? If so, it's important to know a few of the most common and prominent reasons why your water heater stop working. The more you know about these heater issues, the more capable you will become with correctly diagnosing them and then taking the appropriate actions yourself. Here are the most common Vulcan water heater problems and their troubleshooting tips to get back your unit back running.

Vulcan Water Heater Troubleshooting Guide

When your Vulcan water heater not working correctly, try these below steps to fix the problems before calling a professional.

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Water Heater has No Hot Water

If you are not getting hot water from the Vulcan water heater, find out a few solutions for it. This is one of the most common issues everyone will face.

Power loss

If there is no power supply to your water heating system, it can't give you hot water. Many factors can cause power loss including. Check the following:

  • See if the circuit breaker has tripped in your power box. If it is tripped, you must reset the breaker.
  • Check if there is a power outage in your area.
  • If you have solar power, sometimes heating can not be 100% efficient due to poor weather. In these situations, you can use the booster switch which these systems have.
  • Check for the thermostat malfunction. If the thermostat has malfunctioned, replace it if necessary.
  • Verify the water leaks in the surrounds of your hot water tank.

Pilot light

If your water heater is a Vulcan gas water heater, the pilot light may have gone out. So, you have to relight the pilot light by following the instructions given in the manual.

Leaking Tank

Usually, the water heating systems have an overflow outlet valve that is also called a relief valve that helps to relieve the pressure from the water tank. If you find that your water heater is visibly leaking a lot more than a bit of pressure runoff. You can take the help of a plumber to fix the issue.

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Water Leaks

Any water heater eventually starts leaking water. As by nature, eventually, water will corrode your hot water tank and create microscopic cracks or fractures.

If the water is leaking from top of the tank, it's a sign that the connections are loose. Hence, check to make sure that the cold water as well as hot water pipes are connected solidly and not rattling or loose.

If the water leak appears at the bottom of the tank, there might be an issue with the condensation. You can fix this issue by turning up the thermostat. Also, check if the water spilling out from the pressure relief valve or overflow pipe. If the tank is corroded, sometimes, you need to replace the water heater.

Takes Much Time to Heat Water

If you feel that your water heater taking longer time to heat the water than usual, the problem might be with the thermostat. Check if the thermostat could be set to too low. If it is at low, the burner can't have enough energy to heat water quickly. Also, there could be a problem with the gas connection such as dirty vent flue, poor gas pressure, or a dirty orifice or burner which prevents proper gas flow. If you clean these parts, you can solve the issue.

Sometimes, the water heater itself caused to not heat water. In some situations, it may lead to lukewarm water flowing through the lines. If this happens, your water never heats up, Then, call a professional to repair or replace your water heater.

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Low Water Heater Pressure

In older homes, the biggest issue with the water pressure is using 1/2 inch plumbing which is standard for decades. But, in modern homes, 3/4" plumbing is used that is capable of handling greater water throughput. However, for older homes, you need to replace them with a full pipeline to fix this problem.

For modern plumbing, just increase your water pressure to make sure that the aerators in the sink have not become clogged. Also, check the water inlet valve to make sure it hasn’t accidentally become closed.

Water is Too Hot or Too Cold

Because of problems with the thermostat, you will get too hot or not have enough hot water. Due to inconsistent water temperatures in your water heater, you get too hot or cold water from the heating system. So, you need to replace or clean the thermocouple to set the temperature sensors properly. You may get too cold water with the gas flow issue. If the gas flow is not sufficient or limited for your needs, then your burner can't able to adequately heat the water in your Vulcan water heater tank.



Hope you have fixed the basic Vulcan water heater issues yourself. If you need any further tips, you can check the Vulcan manual. In this Vulcan water heater troubleshooting, we have provided the guide for common problems only. Bookmark to get more troubleshooting guides on commercial kitchen equipment.

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