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If the heating elements in your M-90 automatic coffee machine are functioning properly but the water is not being heated, there may be an issue with the water flow or temperature control system. Here are a few troubleshooting steps you can try:
1. Check the water reservoir: Ensure that the water reservoir is properly filled with clean water. If the reservoir is empty or low on water, the machine may not be able to produce hot water. Refill the reservoir to the appropriate level.
2. Clean the machine: Over time, mineral deposits can accumulate and clog the internal components of the coffee machine, including the water lines. Follow the manufacturer's instructions for cleaning and descaling the machine. Use a descaling solution or a mixture of vinegar and water to remove any buildup that could be obstructing the water flow.
3. Check the water filter: If your coffee machine has a water filter, make sure it is clean and not clogged. A clogged filter can impede the flow of water and affect the heating process. If necessary, replace the filter according to the manufacturer's instructions.
4. Inspect the water pump: The water pump is responsible for circulating water through the heating elements. If the pump is malfunctioning or not working at all, it can result in no hot water. Listen for any unusual noises coming from the machine while it's trying to pump water. If you suspect a problem with the water pump, it may need to be repaired or replaced by a professional technician.
5. Contact customer support: If none of the above steps resolve the issue, it's best to reach out to the manufacturer's customer support or contact a qualified technician who specializes in coffee machine repairs. They will be able to diagnose the problem more accurately and provide you with the necessary steps to fix it.
Remember to always refer to the user manual or contact the manufacturer for specific troubleshooting instructions tailored to your M-90 automatic coffee machine model.
* Bunn model # for specific solutions.
* Most Pro/Office models have a pre-heated tank.
* Most models (Without Vacation or heater switch) will be heated all the time.
* Care must be taken to keep the inner tank filled.
* Pour cold water into fill tray till water comes out of the brew basket.
* Water will stop coming out of brewer once the tank has been topped off.
* If pot is not able to brew after 20 mins of pre-heating. Then call for service.
* Note; most office and Pro machines used in food establishments are from coffee vendors. The larger machines should be serviced by qualified Bunn service techs.
* Contact your coffee vendor or Bunn service ctr for advice.
Aloha, ukeboy57
It sounds like you have a pour over model and the problem is the tank isn't full. Turn the machine off (or unplug it). Put a pot on the warmer like you are going to brew coffee. Pour clean cold water into the top until it starts coming out the sprayhead (above where the coffee grounds go). Now plug it in and turn on. Let it heat up then you can brew.
The way your machine works is that there is always about 2-1/2 pots of water in the tank. The water you pour in to make coffee is actually pushing the hot water in the tank out. So, if you don't fill the tank before using it, you may be hurting the heating element since it isn't totally submerged in water.
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