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Amtrol EX-30 Diaphragm Expansion Tank Extrol Questions & Answers
My boiler has a squeeling sound during the warmu up. I think it is coming from the expansion tank?
The squealing sound generally comes from a circulator pump, if it has a drive coupling between motor and impeller housing there is an oil cup/or oil hole, add oil until it is full! If it is a cartridge style circulator you may have to replace it.
Sometimes air in a system will cause this squeal noise as well. Purging the air out of system may be required. If you need to know how to purge a system there is a good pdf file at this link for $8.95
The Basics of Purging Air
From your Forced Hot Water System
&
Troubleshooting A Leaking Boiler
Relief Valve
Miller Furnace Books Repair
The Expansion tank is factory set to 12 psi and the only way to tell if it remains with 12 psi is to drop the system pressure to zero and check the tank with a pressure gauge. If water comes out the air valvestem when you apply the pressure gauge, the tank is bad, replace it! If there is less then 12 psi on the tank add air to 12 psi and open water valves back up to normal operating pressure. Usually the feed valve will automatically stop at the preset setting.If the boiler is leaking water out any relieve valve drains, the feed valve, relief valve and or expansion tank may need to be replaced.
IS MY HEAT EXCHANGER FOWLED
So you get an E-3 error and nothing you seem to do corrects the issues, I had this happen to me once and what I found is that my boiler system side was working perfectly but the water heater took forever to recover and get up to temp causing alarms. What I did was take my Delta T across the heat exchanger and found that it was only 10'F meaning that the conductivity in my system was very poor. I decided to remove the heat exchanger from the boiler mate and found that the exchanger had sediment build-up almost 2 " think. Now imagine this, say you have a bucket of water and you throw a 300'F piece of metal into the water, naturally heat conduction causes the original water temp to rise Now say we take the same piece of metal @ 300'F and wrap it in a blanket, now the temp giving off 300'F originally is more like 90'F with the blanket over it. Throw the metal wrapped in a blanked into a bucket of water. Now ask yourself which will heat the bucket of water up quicker? Obviously supplying 300'F to the bucket of water will heat water up faster than supplying 90'F. this is exactly the concept of a fowled heat exchanger. You want to get rid of sediment (blanket) on the heat exchanger to make the system heat up faster and require less energy to get that water to a certain setpoint
Amtrol hot maker too hot
seems to me aqua stat or thermistor is not reading temps correctly or temp setting is not correct
Beeping noise
E2 means hot water over shot, make sure to check boiler hot water system to make sure zone valve or control is staying closed when the call for boiler hot water to the water heater is isolated. Sometimes a zone valve will fail open or not close properly causing hot boiler water to constantly feed the water heater.
Digital control keep flushing error3
boiler not getting up to temperature fast enough. If it is an electric boiler, there is a problem with the heating element. If it is oil o rgas fired, you do not have a flame or the boiler temperature is not reaching 180 degrees F.
Leaks bottom
Usually this is actually from the bulb inserted into the tank, if not the gasket may have issues. Contact a local technician, this may be covered under an Amtrol Warranty.
Brine tank no water in
I would say that you should plan on either replacing the clock mechanism, or you may have a larger issue with the other internal gears (e.g., binding). Personally, I replaced the clock one year, then had to replace the entire unit the next. You didn't mention the model, but many use the same clock/timer/gear head, so check for the parts online using your make/model. You can easily save 50% over retail...
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