Macerator toilets are commonly used in homes across the UK and remove waste when it is flushed from below the drainage line.

Macerator systems are quiet and powerful but there can sometimes be problems. Macerator toilet pumps can fail, block or even break.

We have provided a list below of the potential problems related to macerators and how these can best be dealt with.

Some of these tasks can be carried out by yourself, however, for peace of mind we would always recommend a trained specialist carries out the solutions to your macerator problems.

Macerator Is Still Running And Will Not Turn Off

One common problem that our customers have is that their macerator toilet keeps running even when turned off. This problem is caused when the pump has already flushed and continues to do so even though the macerator is clear. There are a number of reasons why this might occur:

  • Blocked macerator or pump
  • The rubber membrane has become damaged
  • Blockage in waste outside of the outline pipe
  • The microswitch is misfiring

Blocked macerator or pump

To unblock the macerator, a technician will first turn off the power supply. They will then remove the lid of the macerator. The blockage will most likely be toilet paper or other waste that has become stuck in the blade.

To remove this waste the technician will then use pliers and then turn the blade counterclockwise and carefully remove the waste accordingly.

Macerator Toilet that needs cleaning

Macerator Toilet that needs cleaning

If the macerator pump is blocked then the motor will need to be removed from the toilet. It will then need to be turned upside down so the pump impellers are visible.

Just like with the macerator, pliers will be used, and the engineer will clear the waste. The motor will then be put back into the macerator toilet.

Misfiring microswitch

This is a common problem that occurs in macerator toilets and this occurs when the waste is stuck between the switch and tank floor, which tricks the switch to thinking that the tank is full. The engineer will clear all the waste by hand and restart the pump.

The Rubber membrane is damaged

The rubber membrane will become damaged over time due to the water applying pressure on the seal. This will mean that potentially waste can get into the switch. The only real fix is that you will need a new replacement system that can be fitted by a specialist engineer.

Macerator Toilet Is Vibrating and Making A Loud Noise

If the macerator toilet is vibrating and making a loud noise, then it is more than likely that something has got stuck in the blade mechanism of the macerator.

A service engineer can fix this for you by removing the foreign object from the blade manually removing the object and by turning the pliers counterclockwise.

Macerator Pump is Starting on Its Own

If the macerator pump keeps starting by itself, then it is potentially a problem with the microswitch. For problems to occur with the microswitch it has to have either a fault with a misfiring microswitch or the rubber membrane may have become damaged.

If the microswitch is misfiring it leads the macerator into thinking that the tank is full when it is in fact empty. This will need to be replaced and then the pump can reset.

If there is damage to the rubber membrane, then waste will be able to get into the switch and cause problems to the system. A service technician will need to fit a new switch and rubber membrane.

Macerator Toilet Is Continually Tripping the Electrics

Macerator toilet pumps that continually trip the electrics is something that will need to be handled with care. This usually means that the water is getting into it which means the circuit will cut off so it will not lead to further damages. With the obvious dangers of water and electric it is recommended that only a trained technician is given the job of repairing the macerator.

If the motor has become damaged or is faulty then a specialist engineer will need to install a new macerator as the motor will be unrepairable.

The Macerator Does Not Smell Nice

If you have had a macerator operating for a long period of time, then it is more than likely it will need a deep clean. The macerator should ordinarily have instructions on how to clean it.

Macerator Toilet Pump is Foaming From The Vent

If your macerator is foaming out of the air vent then it is due to the over use of toilet cleaner or bleach being used. If this continues for a long period of time, then the motor will stop working because it is overheated this is because the toilet pump cannot pump water out correctly.

The solution would be to replace the microswitch to ensure the toilet pump system works correctly.

Macerator Is Running But It Is Not Pumping Water Out

If the macerator is running but is not pumping the waste away, then it is possible that the waste pipes are frozen. In just the same way that central heating systems pipes can become frozen so can those of the macerator.

The service engineer will first turn off the macerator and if the waste has overflowed then they will remove it. Hot towels will be used to heat up the pipes and loosen up the frozen blockage allowing the macerator to pump out the waste.

Need A Macerator Service?

We hope this article has provided you some useful advice about how a specialist technician will tackle different macerator toilet problems. We have a number of technicians placed across the UK able to help with any of your macerator issues. You can get in touch by calling 0800 019 9949 or by clicking the link down below.

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