If your boiler has power, but your pump doesn’t, there could be a problem with the electrical wiring. The solution: You’ll need to call a heating engineer to check the wiring for you. They may be able to fix the wiring, or if the pump is old and corroded, it’s probably more cost-effective to replace it with a new one.

Why is my boiler not circulating hot water?

Air trapped during bleeding the radiator



CAUSE: Another cause of hot water radiators not circulating could be trapped air. If you have recently bled your radiator, then chances are that some air may have trapped inside. This trapped air could be leading to the circulation problem.

How do I know if my boiler circulation pump is working?





If you think you have a problem with your pump, try lightly touching it. If it’s working properly there will be a slight vibration and it will be warm to the touch. If your pump isn’t working, turn off its power supply and get a cloth and a screwdriver.

Why is my circulating pump not working?

Circulator pumps can stop working for several reasons: a blown fuse, bad wiring or a dead motor. Troubleshooting the possible causes in a systematic manner ensures you can find the reason your circulator pump isn’t working so you can get it back up and running as soon as possible.

How do you reset a circulator pump?


Quote from Youtube video: But like mine here it's stuck. So what you want to do is wiggle this back and forth just like I'm doing it shouldn't take a great deal of force.

Why is my hot water not working but my heating is?

Many heating problems, including a lack of hot water, can be caused by low boiler pressure. First, check the boiler’s pressure gauge. If it is in the red area or is under 1 Bar of pressure, you can repressurise your system. If this is a regular problem, give our team a call.

Why does my hot water not get very hot?





Sediment build up in the tank



Over time, sediment can build up in the bottom of the tank, where the burner usually is. This can lead to slower heating or poor efficiency in your water heater, meaning lukewarm water rather than hot water. The solution for this is to drain the tank and to use a water softener.

How much does a circulating pump cost?

The price tag of a hot water recirculation pump is around $200 and most can be installed by the consumer but some require a plumber.

How can you tell if your central heating pump is broken?

Indicators of central heating pump problem

  1. Poor heating performance – central heating system taking longer than usual to heat or not heating as well.
  2. Irregular noises coming from the boiler.
  3. Only some of the radiators are heating up.
  4. The boiler control panel is not working as it should.


Why is my boiler working but radiators are cold?



If your boiler works but the radiators are not heating up, then likely cause could be a faulty boiler pump or your central heating controls. If your boiler works but the radiators are cold, check that the thermostat or timer is working correctly.

How much does it cost to replace a boiler circulator pump?

Replacing a failed circulator pump can cost as little as $400 or as much as $750 or more for the parts and labor at the time of publication. Cost of just the circulator pump itself falls in the range of $100 to $300 depending on the model your system needs.

Why is my boiler not turning on?

A boiler might not ignite due to various possible reasons – insufficient pressure, blockage in the burner, faulty valves, frozen pipes etc. Sometimes, you can fix the problem on your own. In other cases, you don’t have any choice but to call an engineer.

How long do boiler circulator pumps last?



10 years

The pump of your central heating system can last a long time if it is properly installed and maintained. Typically, they keep going for at least 10 years.

Why is my circulator pump making noise?

Excessive wear of bearings (rattling). The pump needs to be replaced. A system that has already been entered into operation has become clogged. The system needs to be cleaned.

What causes boiler pump to fail?

As central heating systems age, dirt and metal particles from radiators and pipework break down and begin to flow through major components such as the heating pump. This dirt and grime builds up in major components in the boiler and causes them to fail.

How long do circulators last?



5 to 10 years

A typical Taco circulator pump usually last from 5 to 10 years unless leaks are left unchecked.

What size circulating pump do I need?

1 GPM = 10,000 BTU/hr, meaning that for every 10,000 BTU’s of heat load the circulator must output a 1 gallon per minute flow. Assuming that system calls for 100,000 BTU/hr, a circulator pump should have a minimum 10 Gallons Per Minute flow rate at a given pressure drop.

Where are Taco pumps made?

The firm has 500 employees, most of whom have enjoyed long-term careers with the company. Taco’s manufacturing facilities include their main plant and headquarters in Cranston, RI; Fall River, MA; Taco Canada Ltd. in Ontario and Hydroflo Pumps USA, Inc. in Fairview, TN.

What is the difference between a pump and a circulator?



A bicycle pump is a pump. So is an oil pump on an oil burner. When those machines start, you expect to get a pressure on the outlet side of the pump that’s greater than the pressure on the inlet side of the pump.

How do you know if you have a bad circulator pump?

You may notice:

  1. The water flow pipe isn’t hot despite the pump running.
  2. A water leak coming from the pump.
  3. The pump is making unusual noises.
  4. The pump casing feels hot.
  5. Some or all of your radiators aren’t heating up.
  6. You have no hot water.