TequilaMB
Member
We have a Dunkirk Boiler Model XE4, and an Amtrol Boiler Mate Watermaker model WH-7L, approximately 30 years old.
We recently began having problems with the Amtrol unit over-heating the water to the point of being scalding, no matter where the temperature gauge is set. We replaced the thermostat on this unit - twice. Both times, the unit "behaved" for a short period (like, a week or so) and then began over-heating the water again. The only solution we've found is to shut down the Dunkirk boiler altogether, and let the water cool down. When fired back up, sometimes the water stays at a normal "hot" temperature for a day, or a week, and then goes into scalding mode again. Obviously, shutting down the boiler is not going to be a solution come winter. Any ideas on what could be causing the issue? We've had our plumber in, who is a Dunkirk Boiler man, but evidently not an Amtrol man, because he said this is "not his area of expertise". He's also said that the boiler "won't blow up". Understandably, we're a bit skeptical of his expertise at this point!
We recently began having problems with the Amtrol unit over-heating the water to the point of being scalding, no matter where the temperature gauge is set. We replaced the thermostat on this unit - twice. Both times, the unit "behaved" for a short period (like, a week or so) and then began over-heating the water again. The only solution we've found is to shut down the Dunkirk boiler altogether, and let the water cool down. When fired back up, sometimes the water stays at a normal "hot" temperature for a day, or a week, and then goes into scalding mode again. Obviously, shutting down the boiler is not going to be a solution come winter. Any ideas on what could be causing the issue? We've had our plumber in, who is a Dunkirk Boiler man, but evidently not an Amtrol man, because he said this is "not his area of expertise". He's also said that the boiler "won't blow up". Understandably, we're a bit skeptical of his expertise at this point!